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| <FONT color="green">001</FONT> /*<a name="line.1"></a> |
| <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a> |
| <FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a> |
| <FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a> |
| <FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a> |
| <FONT color="green">009</FONT> *<a name="line.9"></a> |
| <FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <FONT color="green">011</FONT> *<a name="line.11"></a> |
| <FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a> |
| <FONT color="green">017</FONT> */<a name="line.17"></a> |
| <FONT color="green">018</FONT> /*<a name="line.18"></a> |
| <FONT color="green">019</FONT> * $Id: DTMDefaultBaseTraversers.java 468653 2006-10-28 07:07:05Z minchau $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> package org.apache.xml.dtm.ref;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import org.apache.xml.dtm.*;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> import javax.xml.transform.Source;<a name="line.25"></a> |
| <FONT color="green">026</FONT> <a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.xml.utils.XMLStringFactory;<a name="line.27"></a> |
| <FONT color="green">028</FONT> <a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.xml.res.XMLErrorResources;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.xml.res.XMLMessages;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.xalan.xsltc.dom.NodeCounter;<a name="line.31"></a> |
| <FONT color="green">032</FONT> <a name="line.32"></a> |
| <FONT color="green">033</FONT> /**<a name="line.33"></a> |
| <FONT color="green">034</FONT> * This class implements the traversers for DTMDefaultBase.<a name="line.34"></a> |
| <FONT color="green">035</FONT> *<a name="line.35"></a> |
| <FONT color="green">036</FONT> * PLEASE NOTE that the public interface for all traversers should be<a name="line.36"></a> |
| <FONT color="green">037</FONT> * in terms of DTM Node Handles... but they may use the internal node<a name="line.37"></a> |
| <FONT color="green">038</FONT> * identity indices within their logic, for efficiency's sake. Be very<a name="line.38"></a> |
| <FONT color="green">039</FONT> * careful to avoid confusing these when maintaining this code.<a name="line.39"></a> |
| <FONT color="green">040</FONT> * */<a name="line.40"></a> |
| <FONT color="green">041</FONT> public abstract class DTMDefaultBaseTraversers extends DTMDefaultBase<a name="line.41"></a> |
| <FONT color="green">042</FONT> {<a name="line.42"></a> |
| <FONT color="green">043</FONT> <a name="line.43"></a> |
| <FONT color="green">044</FONT> /**<a name="line.44"></a> |
| <FONT color="green">045</FONT> * Construct a DTMDefaultBaseTraversers object from a DOM node.<a name="line.45"></a> |
| <FONT color="green">046</FONT> *<a name="line.46"></a> |
| <FONT color="green">047</FONT> * @param mgr The DTMManager who owns this DTM.<a name="line.47"></a> |
| <FONT color="green">048</FONT> * @param source The object that is used to specify the construction source.<a name="line.48"></a> |
| <FONT color="green">049</FONT> * @param dtmIdentity The DTM identity ID for this DTM.<a name="line.49"></a> |
| <FONT color="green">050</FONT> * @param whiteSpaceFilter The white space filter for this DTM, which may<a name="line.50"></a> |
| <FONT color="green">051</FONT> * be null.<a name="line.51"></a> |
| <FONT color="green">052</FONT> * @param xstringfactory The factory to use for creating XMLStrings.<a name="line.52"></a> |
| <FONT color="green">053</FONT> * @param doIndexing true if the caller considers it worth it to use<a name="line.53"></a> |
| <FONT color="green">054</FONT> * indexing schemes.<a name="line.54"></a> |
| <FONT color="green">055</FONT> */<a name="line.55"></a> |
| <FONT color="green">056</FONT> public DTMDefaultBaseTraversers(DTMManager mgr, Source source,<a name="line.56"></a> |
| <FONT color="green">057</FONT> int dtmIdentity,<a name="line.57"></a> |
| <FONT color="green">058</FONT> DTMWSFilter whiteSpaceFilter,<a name="line.58"></a> |
| <FONT color="green">059</FONT> XMLStringFactory xstringfactory,<a name="line.59"></a> |
| <FONT color="green">060</FONT> boolean doIndexing)<a name="line.60"></a> |
| <FONT color="green">061</FONT> {<a name="line.61"></a> |
| <FONT color="green">062</FONT> super(mgr, source, dtmIdentity, whiteSpaceFilter, xstringfactory,<a name="line.62"></a> |
| <FONT color="green">063</FONT> doIndexing);<a name="line.63"></a> |
| <FONT color="green">064</FONT> }<a name="line.64"></a> |
| <FONT color="green">065</FONT> <a name="line.65"></a> |
| <FONT color="green">066</FONT> /**<a name="line.66"></a> |
| <FONT color="green">067</FONT> * Construct a DTMDefaultBaseTraversers object from a DOM node.<a name="line.67"></a> |
| <FONT color="green">068</FONT> *<a name="line.68"></a> |
| <FONT color="green">069</FONT> * @param mgr The DTMManager who owns this DTM.<a name="line.69"></a> |
| <FONT color="green">070</FONT> * @param source The object that is used to specify the construction source.<a name="line.70"></a> |
| <FONT color="green">071</FONT> * @param dtmIdentity The DTM identity ID for this DTM.<a name="line.71"></a> |
| <FONT color="green">072</FONT> * @param whiteSpaceFilter The white space filter for this DTM, which may<a name="line.72"></a> |
| <FONT color="green">073</FONT> * be null.<a name="line.73"></a> |
| <FONT color="green">074</FONT> * @param xstringfactory The factory to use for creating XMLStrings.<a name="line.74"></a> |
| <FONT color="green">075</FONT> * @param doIndexing true if the caller considers it worth it to use<a name="line.75"></a> |
| <FONT color="green">076</FONT> * indexing schemes.<a name="line.76"></a> |
| <FONT color="green">077</FONT> * @param blocksize The block size of the DTM.<a name="line.77"></a> |
| <FONT color="green">078</FONT> * @param usePrevsib true if we want to build the previous sibling node array.<a name="line.78"></a> |
| <FONT color="green">079</FONT> * @param newNameTable true if we want to use a new ExpandedNameTable for this DTM.<a name="line.79"></a> |
| <FONT color="green">080</FONT> */<a name="line.80"></a> |
| <FONT color="green">081</FONT> public DTMDefaultBaseTraversers(DTMManager mgr, Source source,<a name="line.81"></a> |
| <FONT color="green">082</FONT> int dtmIdentity,<a name="line.82"></a> |
| <FONT color="green">083</FONT> DTMWSFilter whiteSpaceFilter,<a name="line.83"></a> |
| <FONT color="green">084</FONT> XMLStringFactory xstringfactory,<a name="line.84"></a> |
| <FONT color="green">085</FONT> boolean doIndexing,<a name="line.85"></a> |
| <FONT color="green">086</FONT> int blocksize,<a name="line.86"></a> |
| <FONT color="green">087</FONT> boolean usePrevsib,<a name="line.87"></a> |
| <FONT color="green">088</FONT> boolean newNameTable)<a name="line.88"></a> |
| <FONT color="green">089</FONT> {<a name="line.89"></a> |
| <FONT color="green">090</FONT> super(mgr, source, dtmIdentity, whiteSpaceFilter, xstringfactory,<a name="line.90"></a> |
| <FONT color="green">091</FONT> doIndexing, blocksize, usePrevsib, newNameTable);<a name="line.91"></a> |
| <FONT color="green">092</FONT> }<a name="line.92"></a> |
| <FONT color="green">093</FONT> <a name="line.93"></a> |
| <FONT color="green">094</FONT> /**<a name="line.94"></a> |
| <FONT color="green">095</FONT> * This returns a stateless "traverser", that can navigate<a name="line.95"></a> |
| <FONT color="green">096</FONT> * over an XPath axis, though perhaps not in document order.<a name="line.96"></a> |
| <FONT color="green">097</FONT> *<a name="line.97"></a> |
| <FONT color="green">098</FONT> * @param axis One of Axes.ANCESTORORSELF, etc.<a name="line.98"></a> |
| <FONT color="green">099</FONT> *<a name="line.99"></a> |
| <FONT color="green">100</FONT> * @return A DTMAxisTraverser, or null if the given axis isn't supported.<a name="line.100"></a> |
| <FONT color="green">101</FONT> */<a name="line.101"></a> |
| <FONT color="green">102</FONT> public DTMAxisTraverser getAxisTraverser(final int axis)<a name="line.102"></a> |
| <FONT color="green">103</FONT> {<a name="line.103"></a> |
| <FONT color="green">104</FONT> <a name="line.104"></a> |
| <FONT color="green">105</FONT> DTMAxisTraverser traverser;<a name="line.105"></a> |
| <FONT color="green">106</FONT> <a name="line.106"></a> |
| <FONT color="green">107</FONT> if (null == m_traversers) // Cache of stateless traversers for this DTM<a name="line.107"></a> |
| <FONT color="green">108</FONT> {<a name="line.108"></a> |
| <FONT color="green">109</FONT> m_traversers = new DTMAxisTraverser[Axis.getNamesLength()];<a name="line.109"></a> |
| <FONT color="green">110</FONT> traverser = null;<a name="line.110"></a> |
| <FONT color="green">111</FONT> }<a name="line.111"></a> |
| <FONT color="green">112</FONT> else<a name="line.112"></a> |
| <FONT color="green">113</FONT> {<a name="line.113"></a> |
| <FONT color="green">114</FONT> traverser = m_traversers[axis]; // Share/reuse existing traverser<a name="line.114"></a> |
| <FONT color="green">115</FONT> <a name="line.115"></a> |
| <FONT color="green">116</FONT> if (traverser != null)<a name="line.116"></a> |
| <FONT color="green">117</FONT> return traverser;<a name="line.117"></a> |
| <FONT color="green">118</FONT> }<a name="line.118"></a> |
| <FONT color="green">119</FONT> <a name="line.119"></a> |
| <FONT color="green">120</FONT> switch (axis) // Generate new traverser<a name="line.120"></a> |
| <FONT color="green">121</FONT> {<a name="line.121"></a> |
| <FONT color="green">122</FONT> case Axis.ANCESTOR :<a name="line.122"></a> |
| <FONT color="green">123</FONT> traverser = new AncestorTraverser();<a name="line.123"></a> |
| <FONT color="green">124</FONT> break;<a name="line.124"></a> |
| <FONT color="green">125</FONT> case Axis.ANCESTORORSELF :<a name="line.125"></a> |
| <FONT color="green">126</FONT> traverser = new AncestorOrSelfTraverser();<a name="line.126"></a> |
| <FONT color="green">127</FONT> break;<a name="line.127"></a> |
| <FONT color="green">128</FONT> case Axis.ATTRIBUTE :<a name="line.128"></a> |
| <FONT color="green">129</FONT> traverser = new AttributeTraverser();<a name="line.129"></a> |
| <FONT color="green">130</FONT> break;<a name="line.130"></a> |
| <FONT color="green">131</FONT> case Axis.CHILD :<a name="line.131"></a> |
| <FONT color="green">132</FONT> traverser = new ChildTraverser();<a name="line.132"></a> |
| <FONT color="green">133</FONT> break;<a name="line.133"></a> |
| <FONT color="green">134</FONT> case Axis.DESCENDANT :<a name="line.134"></a> |
| <FONT color="green">135</FONT> traverser = new DescendantTraverser();<a name="line.135"></a> |
| <FONT color="green">136</FONT> break;<a name="line.136"></a> |
| <FONT color="green">137</FONT> case Axis.DESCENDANTORSELF :<a name="line.137"></a> |
| <FONT color="green">138</FONT> traverser = new DescendantOrSelfTraverser();<a name="line.138"></a> |
| <FONT color="green">139</FONT> break;<a name="line.139"></a> |
| <FONT color="green">140</FONT> case Axis.FOLLOWING :<a name="line.140"></a> |
| <FONT color="green">141</FONT> traverser = new FollowingTraverser();<a name="line.141"></a> |
| <FONT color="green">142</FONT> break;<a name="line.142"></a> |
| <FONT color="green">143</FONT> case Axis.FOLLOWINGSIBLING :<a name="line.143"></a> |
| <FONT color="green">144</FONT> traverser = new FollowingSiblingTraverser();<a name="line.144"></a> |
| <FONT color="green">145</FONT> break;<a name="line.145"></a> |
| <FONT color="green">146</FONT> case Axis.NAMESPACE :<a name="line.146"></a> |
| <FONT color="green">147</FONT> traverser = new NamespaceTraverser();<a name="line.147"></a> |
| <FONT color="green">148</FONT> break;<a name="line.148"></a> |
| <FONT color="green">149</FONT> case Axis.NAMESPACEDECLS :<a name="line.149"></a> |
| <FONT color="green">150</FONT> traverser = new NamespaceDeclsTraverser();<a name="line.150"></a> |
| <FONT color="green">151</FONT> break;<a name="line.151"></a> |
| <FONT color="green">152</FONT> case Axis.PARENT :<a name="line.152"></a> |
| <FONT color="green">153</FONT> traverser = new ParentTraverser();<a name="line.153"></a> |
| <FONT color="green">154</FONT> break;<a name="line.154"></a> |
| <FONT color="green">155</FONT> case Axis.PRECEDING :<a name="line.155"></a> |
| <FONT color="green">156</FONT> traverser = new PrecedingTraverser();<a name="line.156"></a> |
| <FONT color="green">157</FONT> break;<a name="line.157"></a> |
| <FONT color="green">158</FONT> case Axis.PRECEDINGSIBLING :<a name="line.158"></a> |
| <FONT color="green">159</FONT> traverser = new PrecedingSiblingTraverser();<a name="line.159"></a> |
| <FONT color="green">160</FONT> break;<a name="line.160"></a> |
| <FONT color="green">161</FONT> case Axis.SELF :<a name="line.161"></a> |
| <FONT color="green">162</FONT> traverser = new SelfTraverser();<a name="line.162"></a> |
| <FONT color="green">163</FONT> break;<a name="line.163"></a> |
| <FONT color="green">164</FONT> case Axis.ALL :<a name="line.164"></a> |
| <FONT color="green">165</FONT> traverser = new AllFromRootTraverser();<a name="line.165"></a> |
| <FONT color="green">166</FONT> break;<a name="line.166"></a> |
| <FONT color="green">167</FONT> case Axis.ALLFROMNODE :<a name="line.167"></a> |
| <FONT color="green">168</FONT> traverser = new AllFromNodeTraverser();<a name="line.168"></a> |
| <FONT color="green">169</FONT> break;<a name="line.169"></a> |
| <FONT color="green">170</FONT> case Axis.PRECEDINGANDANCESTOR :<a name="line.170"></a> |
| <FONT color="green">171</FONT> traverser = new PrecedingAndAncestorTraverser();<a name="line.171"></a> |
| <FONT color="green">172</FONT> break;<a name="line.172"></a> |
| <FONT color="green">173</FONT> case Axis.DESCENDANTSFROMROOT :<a name="line.173"></a> |
| <FONT color="green">174</FONT> traverser = new DescendantFromRootTraverser();<a name="line.174"></a> |
| <FONT color="green">175</FONT> break;<a name="line.175"></a> |
| <FONT color="green">176</FONT> case Axis.DESCENDANTSORSELFFROMROOT :<a name="line.176"></a> |
| <FONT color="green">177</FONT> traverser = new DescendantOrSelfFromRootTraverser();<a name="line.177"></a> |
| <FONT color="green">178</FONT> break;<a name="line.178"></a> |
| <FONT color="green">179</FONT> case Axis.ROOT :<a name="line.179"></a> |
| <FONT color="green">180</FONT> traverser = new RootTraverser();<a name="line.180"></a> |
| <FONT color="green">181</FONT> break;<a name="line.181"></a> |
| <FONT color="green">182</FONT> case Axis.FILTEREDLIST :<a name="line.182"></a> |
| <FONT color="green">183</FONT> return null; // Don't want to throw an exception for this one.<a name="line.183"></a> |
| <FONT color="green">184</FONT> default :<a name="line.184"></a> |
| <FONT color="green">185</FONT> throw new DTMException(XMLMessages.createXMLMessage(XMLErrorResources.ER_UNKNOWN_AXIS_TYPE, new Object[]{Integer.toString(axis)})); //"Unknown axis traversal type: "+axis);<a name="line.185"></a> |
| <FONT color="green">186</FONT> }<a name="line.186"></a> |
| <FONT color="green">187</FONT> <a name="line.187"></a> |
| <FONT color="green">188</FONT> if (null == traverser)<a name="line.188"></a> |
| <FONT color="green">189</FONT> throw new DTMException(XMLMessages.createXMLMessage(XMLErrorResources.ER_AXIS_TRAVERSER_NOT_SUPPORTED, new Object[]{Axis.getNames(axis)}));<a name="line.189"></a> |
| <FONT color="green">190</FONT> // "Axis traverser not supported: "<a name="line.190"></a> |
| <FONT color="green">191</FONT> // + Axis.names[axis]);<a name="line.191"></a> |
| <FONT color="green">192</FONT> <a name="line.192"></a> |
| <FONT color="green">193</FONT> m_traversers[axis] = traverser;<a name="line.193"></a> |
| <FONT color="green">194</FONT> <a name="line.194"></a> |
| <FONT color="green">195</FONT> return traverser;<a name="line.195"></a> |
| <FONT color="green">196</FONT> }<a name="line.196"></a> |
| <FONT color="green">197</FONT> <a name="line.197"></a> |
| <FONT color="green">198</FONT> /**<a name="line.198"></a> |
| <FONT color="green">199</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.199"></a> |
| <FONT color="green">200</FONT> */<a name="line.200"></a> |
| <FONT color="green">201</FONT> private class AncestorTraverser extends DTMAxisTraverser<a name="line.201"></a> |
| <FONT color="green">202</FONT> {<a name="line.202"></a> |
| <FONT color="green">203</FONT> <a name="line.203"></a> |
| <FONT color="green">204</FONT> /**<a name="line.204"></a> |
| <FONT color="green">205</FONT> * Traverse to the next node after the current node.<a name="line.205"></a> |
| <FONT color="green">206</FONT> *<a name="line.206"></a> |
| <FONT color="green">207</FONT> * @param context The context node if this iteration.<a name="line.207"></a> |
| <FONT color="green">208</FONT> * @param current The current node of the iteration.<a name="line.208"></a> |
| <FONT color="green">209</FONT> *<a name="line.209"></a> |
| <FONT color="green">210</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.210"></a> |
| <FONT color="green">211</FONT> */<a name="line.211"></a> |
| <FONT color="green">212</FONT> public int next(int context, int current)<a name="line.212"></a> |
| <FONT color="green">213</FONT> {<a name="line.213"></a> |
| <FONT color="green">214</FONT> return getParent(current);<a name="line.214"></a> |
| <FONT color="green">215</FONT> }<a name="line.215"></a> |
| <FONT color="green">216</FONT> <a name="line.216"></a> |
| <FONT color="green">217</FONT> /**<a name="line.217"></a> |
| <FONT color="green">218</FONT> * Traverse to the next node after the current node that is matched<a name="line.218"></a> |
| <FONT color="green">219</FONT> * by the expanded type ID.<a name="line.219"></a> |
| <FONT color="green">220</FONT> *<a name="line.220"></a> |
| <FONT color="green">221</FONT> * @param context The context node of this iteration.<a name="line.221"></a> |
| <FONT color="green">222</FONT> * @param current The current node of the iteration.<a name="line.222"></a> |
| <FONT color="green">223</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.223"></a> |
| <FONT color="green">224</FONT> *<a name="line.224"></a> |
| <FONT color="green">225</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.225"></a> |
| <FONT color="green">226</FONT> */<a name="line.226"></a> |
| <FONT color="green">227</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.227"></a> |
| <FONT color="green">228</FONT> {<a name="line.228"></a> |
| <FONT color="green">229</FONT> // Process using identities<a name="line.229"></a> |
| <FONT color="green">230</FONT> current = makeNodeIdentity(current);<a name="line.230"></a> |
| <FONT color="green">231</FONT> <a name="line.231"></a> |
| <FONT color="green">232</FONT> while (DTM.NULL != (current = m_parent.elementAt(current)))<a name="line.232"></a> |
| <FONT color="green">233</FONT> {<a name="line.233"></a> |
| <FONT color="green">234</FONT> if (m_exptype.elementAt(current) == expandedTypeID)<a name="line.234"></a> |
| <FONT color="green">235</FONT> return makeNodeHandle(current);<a name="line.235"></a> |
| <FONT color="green">236</FONT> }<a name="line.236"></a> |
| <FONT color="green">237</FONT> <a name="line.237"></a> |
| <FONT color="green">238</FONT> return NULL;<a name="line.238"></a> |
| <FONT color="green">239</FONT> }<a name="line.239"></a> |
| <FONT color="green">240</FONT> }<a name="line.240"></a> |
| <FONT color="green">241</FONT> <a name="line.241"></a> |
| <FONT color="green">242</FONT> /**<a name="line.242"></a> |
| <FONT color="green">243</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.243"></a> |
| <FONT color="green">244</FONT> */<a name="line.244"></a> |
| <FONT color="green">245</FONT> private class AncestorOrSelfTraverser extends AncestorTraverser<a name="line.245"></a> |
| <FONT color="green">246</FONT> {<a name="line.246"></a> |
| <FONT color="green">247</FONT> <a name="line.247"></a> |
| <FONT color="green">248</FONT> /**<a name="line.248"></a> |
| <FONT color="green">249</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.249"></a> |
| <FONT color="green">250</FONT> * returned or the iteration will go into an infinate loop. To see if<a name="line.250"></a> |
| <FONT color="green">251</FONT> * the self node should be processed, use this function.<a name="line.251"></a> |
| <FONT color="green">252</FONT> *<a name="line.252"></a> |
| <FONT color="green">253</FONT> * @param context The context node of this traversal.<a name="line.253"></a> |
| <FONT color="green">254</FONT> *<a name="line.254"></a> |
| <FONT color="green">255</FONT> * @return the first node in the traversal.<a name="line.255"></a> |
| <FONT color="green">256</FONT> */<a name="line.256"></a> |
| <FONT color="green">257</FONT> public int first(int context)<a name="line.257"></a> |
| <FONT color="green">258</FONT> {<a name="line.258"></a> |
| <FONT color="green">259</FONT> return context;<a name="line.259"></a> |
| <FONT color="green">260</FONT> }<a name="line.260"></a> |
| <FONT color="green">261</FONT> <a name="line.261"></a> |
| <FONT color="green">262</FONT> /**<a name="line.262"></a> |
| <FONT color="green">263</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.263"></a> |
| <FONT color="green">264</FONT> * returned or the iteration will go into an infinate loop. To see if<a name="line.264"></a> |
| <FONT color="green">265</FONT> * the self node should be processed, use this function. If the context<a name="line.265"></a> |
| <FONT color="green">266</FONT> * node does not match the expanded type ID, this function will return<a name="line.266"></a> |
| <FONT color="green">267</FONT> * false.<a name="line.267"></a> |
| <FONT color="green">268</FONT> *<a name="line.268"></a> |
| <FONT color="green">269</FONT> * @param context The context node of this traversal.<a name="line.269"></a> |
| <FONT color="green">270</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.270"></a> |
| <FONT color="green">271</FONT> *<a name="line.271"></a> |
| <FONT color="green">272</FONT> * @return the first node in the traversal.<a name="line.272"></a> |
| <FONT color="green">273</FONT> */<a name="line.273"></a> |
| <FONT color="green">274</FONT> public int first(int context, int expandedTypeID)<a name="line.274"></a> |
| <FONT color="green">275</FONT> {<a name="line.275"></a> |
| <FONT color="green">276</FONT> return (getExpandedTypeID(context) == expandedTypeID)<a name="line.276"></a> |
| <FONT color="green">277</FONT> ? context : next(context, context, expandedTypeID);<a name="line.277"></a> |
| <FONT color="green">278</FONT> }<a name="line.278"></a> |
| <FONT color="green">279</FONT> }<a name="line.279"></a> |
| <FONT color="green">280</FONT> <a name="line.280"></a> |
| <FONT color="green">281</FONT> /**<a name="line.281"></a> |
| <FONT color="green">282</FONT> * Implements traversal of the Attribute access<a name="line.282"></a> |
| <FONT color="green">283</FONT> */<a name="line.283"></a> |
| <FONT color="green">284</FONT> private class AttributeTraverser extends DTMAxisTraverser<a name="line.284"></a> |
| <FONT color="green">285</FONT> {<a name="line.285"></a> |
| <FONT color="green">286</FONT> <a name="line.286"></a> |
| <FONT color="green">287</FONT> /**<a name="line.287"></a> |
| <FONT color="green">288</FONT> * Traverse to the next node after the current node.<a name="line.288"></a> |
| <FONT color="green">289</FONT> *<a name="line.289"></a> |
| <FONT color="green">290</FONT> * @param context The context node of this iteration.<a name="line.290"></a> |
| <FONT color="green">291</FONT> * @param current The current node of the iteration.<a name="line.291"></a> |
| <FONT color="green">292</FONT> *<a name="line.292"></a> |
| <FONT color="green">293</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.293"></a> |
| <FONT color="green">294</FONT> */<a name="line.294"></a> |
| <FONT color="green">295</FONT> public int next(int context, int current)<a name="line.295"></a> |
| <FONT color="green">296</FONT> {<a name="line.296"></a> |
| <FONT color="green">297</FONT> return (context == current)<a name="line.297"></a> |
| <FONT color="green">298</FONT> ? getFirstAttribute(context) : getNextAttribute(current);<a name="line.298"></a> |
| <FONT color="green">299</FONT> }<a name="line.299"></a> |
| <FONT color="green">300</FONT> <a name="line.300"></a> |
| <FONT color="green">301</FONT> /**<a name="line.301"></a> |
| <FONT color="green">302</FONT> * Traverse to the next node after the current node that is matched<a name="line.302"></a> |
| <FONT color="green">303</FONT> * by the expanded type ID.<a name="line.303"></a> |
| <FONT color="green">304</FONT> *<a name="line.304"></a> |
| <FONT color="green">305</FONT> * @param context The context node of this iteration.<a name="line.305"></a> |
| <FONT color="green">306</FONT> * @param current The current node of the iteration.<a name="line.306"></a> |
| <FONT color="green">307</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.307"></a> |
| <FONT color="green">308</FONT> *<a name="line.308"></a> |
| <FONT color="green">309</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.309"></a> |
| <FONT color="green">310</FONT> */<a name="line.310"></a> |
| <FONT color="green">311</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.311"></a> |
| <FONT color="green">312</FONT> {<a name="line.312"></a> |
| <FONT color="green">313</FONT> <a name="line.313"></a> |
| <FONT color="green">314</FONT> current = (context == current)<a name="line.314"></a> |
| <FONT color="green">315</FONT> ? getFirstAttribute(context) : getNextAttribute(current);<a name="line.315"></a> |
| <FONT color="green">316</FONT> <a name="line.316"></a> |
| <FONT color="green">317</FONT> do<a name="line.317"></a> |
| <FONT color="green">318</FONT> {<a name="line.318"></a> |
| <FONT color="green">319</FONT> if (getExpandedTypeID(current) == expandedTypeID)<a name="line.319"></a> |
| <FONT color="green">320</FONT> return current;<a name="line.320"></a> |
| <FONT color="green">321</FONT> }<a name="line.321"></a> |
| <FONT color="green">322</FONT> while (DTM.NULL != (current = getNextAttribute(current)));<a name="line.322"></a> |
| <FONT color="green">323</FONT> <a name="line.323"></a> |
| <FONT color="green">324</FONT> return NULL;<a name="line.324"></a> |
| <FONT color="green">325</FONT> }<a name="line.325"></a> |
| <FONT color="green">326</FONT> }<a name="line.326"></a> |
| <FONT color="green">327</FONT> <a name="line.327"></a> |
| <FONT color="green">328</FONT> /**<a name="line.328"></a> |
| <FONT color="green">329</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.329"></a> |
| <FONT color="green">330</FONT> */<a name="line.330"></a> |
| <FONT color="green">331</FONT> private class ChildTraverser extends DTMAxisTraverser<a name="line.331"></a> |
| <FONT color="green">332</FONT> {<a name="line.332"></a> |
| <FONT color="green">333</FONT> <a name="line.333"></a> |
| <FONT color="green">334</FONT> /**<a name="line.334"></a> |
| <FONT color="green">335</FONT> * Get the next indexed node that matches the expanded type ID. Before <a name="line.335"></a> |
| <FONT color="green">336</FONT> * calling this function, one should first call <a name="line.336"></a> |
| <FONT color="green">337</FONT> * {@link #isIndexed(int) isIndexed} to make sure that the index can <a name="line.337"></a> |
| <FONT color="green">338</FONT> * contain nodes that match the given expanded type ID.<a name="line.338"></a> |
| <FONT color="green">339</FONT> *<a name="line.339"></a> |
| <FONT color="green">340</FONT> * @param axisRoot The root identity of the axis.<a name="line.340"></a> |
| <FONT color="green">341</FONT> * @param nextPotential The node found must match or occur after this node.<a name="line.341"></a> |
| <FONT color="green">342</FONT> * @param expandedTypeID The expanded type ID for the request.<a name="line.342"></a> |
| <FONT color="green">343</FONT> *<a name="line.343"></a> |
| <FONT color="green">344</FONT> * @return The node ID or NULL if not found.<a name="line.344"></a> |
| <FONT color="green">345</FONT> */<a name="line.345"></a> |
| <FONT color="green">346</FONT> protected int getNextIndexed(int axisRoot, int nextPotential,<a name="line.346"></a> |
| <FONT color="green">347</FONT> int expandedTypeID)<a name="line.347"></a> |
| <FONT color="green">348</FONT> {<a name="line.348"></a> |
| <FONT color="green">349</FONT> <a name="line.349"></a> |
| <FONT color="green">350</FONT> int nsIndex = m_expandedNameTable.getNamespaceID(expandedTypeID);<a name="line.350"></a> |
| <FONT color="green">351</FONT> int lnIndex = m_expandedNameTable.getLocalNameID(expandedTypeID);<a name="line.351"></a> |
| <FONT color="green">352</FONT> <a name="line.352"></a> |
| <FONT color="green">353</FONT> for (; ; ) <a name="line.353"></a> |
| <FONT color="green">354</FONT> {<a name="line.354"></a> |
| <FONT color="green">355</FONT> int nextID = findElementFromIndex(nsIndex, lnIndex, nextPotential);<a name="line.355"></a> |
| <FONT color="green">356</FONT> <a name="line.356"></a> |
| <FONT color="green">357</FONT> if (NOTPROCESSED != nextID)<a name="line.357"></a> |
| <FONT color="green">358</FONT> {<a name="line.358"></a> |
| <FONT color="green">359</FONT> int parentID = m_parent.elementAt(nextID);<a name="line.359"></a> |
| <FONT color="green">360</FONT> <a name="line.360"></a> |
| <FONT color="green">361</FONT> // Is it a child?<a name="line.361"></a> |
| <FONT color="green">362</FONT> if(parentID == axisRoot)<a name="line.362"></a> |
| <FONT color="green">363</FONT> return nextID;<a name="line.363"></a> |
| <FONT color="green">364</FONT> <a name="line.364"></a> |
| <FONT color="green">365</FONT> // If the parent occured before the subtree root, then <a name="line.365"></a> |
| <FONT color="green">366</FONT> // we know it is past the child axis.<a name="line.366"></a> |
| <FONT color="green">367</FONT> if(parentID < axisRoot)<a name="line.367"></a> |
| <FONT color="green">368</FONT> return NULL;<a name="line.368"></a> |
| <FONT color="green">369</FONT> <a name="line.369"></a> |
| <FONT color="green">370</FONT> // Otherwise, it could be a descendant below the subtree root <a name="line.370"></a> |
| <FONT color="green">371</FONT> // children, or it could be after the subtree root. So we have <a name="line.371"></a> |
| <FONT color="green">372</FONT> // to climb up until the parent is less than the subtree root, in <a name="line.372"></a> |
| <FONT color="green">373</FONT> // which case we return NULL, or until it is equal to the subtree <a name="line.373"></a> |
| <FONT color="green">374</FONT> // root, in which case we continue to look.<a name="line.374"></a> |
| <FONT color="green">375</FONT> do<a name="line.375"></a> |
| <FONT color="green">376</FONT> {<a name="line.376"></a> |
| <FONT color="green">377</FONT> parentID = m_parent.elementAt(parentID);<a name="line.377"></a> |
| <FONT color="green">378</FONT> if(parentID < axisRoot)<a name="line.378"></a> |
| <FONT color="green">379</FONT> return NULL;<a name="line.379"></a> |
| <FONT color="green">380</FONT> }<a name="line.380"></a> |
| <FONT color="green">381</FONT> while(parentID > axisRoot);<a name="line.381"></a> |
| <FONT color="green">382</FONT> <a name="line.382"></a> |
| <FONT color="green">383</FONT> // System.out.println("Found node via index: "+first);<a name="line.383"></a> |
| <FONT color="green">384</FONT> nextPotential = nextID+1;<a name="line.384"></a> |
| <FONT color="green">385</FONT> continue;<a name="line.385"></a> |
| <FONT color="green">386</FONT> }<a name="line.386"></a> |
| <FONT color="green">387</FONT> <a name="line.387"></a> |
| <FONT color="green">388</FONT> nextNode();<a name="line.388"></a> |
| <FONT color="green">389</FONT> <a name="line.389"></a> |
| <FONT color="green">390</FONT> if(!(m_nextsib.elementAt(axisRoot) == NOTPROCESSED))<a name="line.390"></a> |
| <FONT color="green">391</FONT> break;<a name="line.391"></a> |
| <FONT color="green">392</FONT> }<a name="line.392"></a> |
| <FONT color="green">393</FONT> <a name="line.393"></a> |
| <FONT color="green">394</FONT> return DTM.NULL;<a name="line.394"></a> |
| <FONT color="green">395</FONT> }<a name="line.395"></a> |
| <FONT color="green">396</FONT> <a name="line.396"></a> |
| <FONT color="green">397</FONT> /**<a name="line.397"></a> |
| <FONT color="green">398</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.398"></a> |
| <FONT color="green">399</FONT> * returned or the iteration will go into an infinate loop. So to traverse <a name="line.399"></a> |
| <FONT color="green">400</FONT> * an axis, the first function must be used to get the first node.<a name="line.400"></a> |
| <FONT color="green">401</FONT> *<a name="line.401"></a> |
| <FONT color="green">402</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.402"></a> |
| <FONT color="green">403</FONT> * the self node. <\p><a name="line.403"></a> |
| <FONT color="green">404</FONT> *<a name="line.404"></a> |
| <FONT color="green">405</FONT> * @param context The context node of this traversal. This is the point<a name="line.405"></a> |
| <FONT color="green">406</FONT> * that the traversal starts from.<a name="line.406"></a> |
| <FONT color="green">407</FONT> * @return the first node in the traversal.<a name="line.407"></a> |
| <FONT color="green">408</FONT> */<a name="line.408"></a> |
| <FONT color="green">409</FONT> public int first(int context)<a name="line.409"></a> |
| <FONT color="green">410</FONT> {<a name="line.410"></a> |
| <FONT color="green">411</FONT> return getFirstChild(context);<a name="line.411"></a> |
| <FONT color="green">412</FONT> }<a name="line.412"></a> |
| <FONT color="green">413</FONT> <a name="line.413"></a> |
| <FONT color="green">414</FONT> /**<a name="line.414"></a> |
| <FONT color="green">415</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.415"></a> |
| <FONT color="green">416</FONT> * returned or the iteration will go into an infinate loop. So to traverse <a name="line.416"></a> |
| <FONT color="green">417</FONT> * an axis, the first function must be used to get the first node.<a name="line.417"></a> |
| <FONT color="green">418</FONT> *<a name="line.418"></a> |
| <FONT color="green">419</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.419"></a> |
| <FONT color="green">420</FONT> * the self node. <\p><a name="line.420"></a> |
| <FONT color="green">421</FONT> *<a name="line.421"></a> |
| <FONT color="green">422</FONT> * @param context The context node of this traversal. This is the point<a name="line.422"></a> |
| <FONT color="green">423</FONT> * of origin for the traversal -- its "root node" or starting point.<a name="line.423"></a> |
| <FONT color="green">424</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.424"></a> |
| <FONT color="green">425</FONT> *<a name="line.425"></a> |
| <FONT color="green">426</FONT> * @return the first node in the traversal.<a name="line.426"></a> |
| <FONT color="green">427</FONT> */<a name="line.427"></a> |
| <FONT color="green">428</FONT> public int first(int context, int expandedTypeID)<a name="line.428"></a> |
| <FONT color="green">429</FONT> {<a name="line.429"></a> |
| <FONT color="green">430</FONT> if(true)<a name="line.430"></a> |
| <FONT color="green">431</FONT> {<a name="line.431"></a> |
| <FONT color="green">432</FONT> int identity = makeNodeIdentity(context);<a name="line.432"></a> |
| <FONT color="green">433</FONT> <a name="line.433"></a> |
| <FONT color="green">434</FONT> int firstMatch = getNextIndexed(identity, _firstch(identity),<a name="line.434"></a> |
| <FONT color="green">435</FONT> expandedTypeID);<a name="line.435"></a> |
| <FONT color="green">436</FONT> <a name="line.436"></a> |
| <FONT color="green">437</FONT> return makeNodeHandle(firstMatch);<a name="line.437"></a> |
| <FONT color="green">438</FONT> }<a name="line.438"></a> |
| <FONT color="green">439</FONT> else<a name="line.439"></a> |
| <FONT color="green">440</FONT> {<a name="line.440"></a> |
| <FONT color="green">441</FONT> // %REVIEW% Dead code. Eliminate?<a name="line.441"></a> |
| <FONT color="green">442</FONT> for (int current = _firstch(makeNodeIdentity(context)); <a name="line.442"></a> |
| <FONT color="green">443</FONT> DTM.NULL != current; <a name="line.443"></a> |
| <FONT color="green">444</FONT> current = _nextsib(current)) <a name="line.444"></a> |
| <FONT color="green">445</FONT> {<a name="line.445"></a> |
| <FONT color="green">446</FONT> if (m_exptype.elementAt(current) == expandedTypeID)<a name="line.446"></a> |
| <FONT color="green">447</FONT> return makeNodeHandle(current);<a name="line.447"></a> |
| <FONT color="green">448</FONT> }<a name="line.448"></a> |
| <FONT color="green">449</FONT> return NULL;<a name="line.449"></a> |
| <FONT color="green">450</FONT> }<a name="line.450"></a> |
| <FONT color="green">451</FONT> }<a name="line.451"></a> |
| <FONT color="green">452</FONT> <a name="line.452"></a> |
| <FONT color="green">453</FONT> /**<a name="line.453"></a> |
| <FONT color="green">454</FONT> * Traverse to the next node after the current node.<a name="line.454"></a> |
| <FONT color="green">455</FONT> *<a name="line.455"></a> |
| <FONT color="green">456</FONT> * @param context The context node of this iteration.<a name="line.456"></a> |
| <FONT color="green">457</FONT> * @param current The current node of the iteration.<a name="line.457"></a> |
| <FONT color="green">458</FONT> *<a name="line.458"></a> |
| <FONT color="green">459</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.459"></a> |
| <FONT color="green">460</FONT> */<a name="line.460"></a> |
| <FONT color="green">461</FONT> public int next(int context, int current)<a name="line.461"></a> |
| <FONT color="green">462</FONT> {<a name="line.462"></a> |
| <FONT color="green">463</FONT> return getNextSibling(current);<a name="line.463"></a> |
| <FONT color="green">464</FONT> }<a name="line.464"></a> |
| <FONT color="green">465</FONT> <a name="line.465"></a> |
| <FONT color="green">466</FONT> /**<a name="line.466"></a> |
| <FONT color="green">467</FONT> * Traverse to the next node after the current node that is matched<a name="line.467"></a> |
| <FONT color="green">468</FONT> * by the expanded type ID.<a name="line.468"></a> |
| <FONT color="green">469</FONT> *<a name="line.469"></a> |
| <FONT color="green">470</FONT> * @param context The context node of this iteration.<a name="line.470"></a> |
| <FONT color="green">471</FONT> * @param current The current node of the iteration.<a name="line.471"></a> |
| <FONT color="green">472</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.472"></a> |
| <FONT color="green">473</FONT> *<a name="line.473"></a> |
| <FONT color="green">474</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.474"></a> |
| <FONT color="green">475</FONT> */<a name="line.475"></a> |
| <FONT color="green">476</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.476"></a> |
| <FONT color="green">477</FONT> {<a name="line.477"></a> |
| <FONT color="green">478</FONT> // Process in Identifier space<a name="line.478"></a> |
| <FONT color="green">479</FONT> for (current = _nextsib(makeNodeIdentity(current)); <a name="line.479"></a> |
| <FONT color="green">480</FONT> DTM.NULL != current; <a name="line.480"></a> |
| <FONT color="green">481</FONT> current = _nextsib(current)) <a name="line.481"></a> |
| <FONT color="green">482</FONT> {<a name="line.482"></a> |
| <FONT color="green">483</FONT> if (m_exptype.elementAt(current) == expandedTypeID)<a name="line.483"></a> |
| <FONT color="green">484</FONT> return makeNodeHandle(current);<a name="line.484"></a> |
| <FONT color="green">485</FONT> }<a name="line.485"></a> |
| <FONT color="green">486</FONT> <a name="line.486"></a> |
| <FONT color="green">487</FONT> return NULL;<a name="line.487"></a> |
| <FONT color="green">488</FONT> }<a name="line.488"></a> |
| <FONT color="green">489</FONT> }<a name="line.489"></a> |
| <FONT color="green">490</FONT> <a name="line.490"></a> |
| <FONT color="green">491</FONT> /**<a name="line.491"></a> |
| <FONT color="green">492</FONT> * Super class for derived classes that want a convenient way to access <a name="line.492"></a> |
| <FONT color="green">493</FONT> * the indexing mechanism.<a name="line.493"></a> |
| <FONT color="green">494</FONT> */<a name="line.494"></a> |
| <FONT color="green">495</FONT> private abstract class IndexedDTMAxisTraverser extends DTMAxisTraverser<a name="line.495"></a> |
| <FONT color="green">496</FONT> {<a name="line.496"></a> |
| <FONT color="green">497</FONT> <a name="line.497"></a> |
| <FONT color="green">498</FONT> /**<a name="line.498"></a> |
| <FONT color="green">499</FONT> * Tell if the indexing is on and the given expanded type ID matches <a name="line.499"></a> |
| <FONT color="green">500</FONT> * what is in the indexes. Derived classes should call this before <a name="line.500"></a> |
| <FONT color="green">501</FONT> * calling {@link #getNextIndexed(int, int, int) getNextIndexed} method.<a name="line.501"></a> |
| <FONT color="green">502</FONT> *<a name="line.502"></a> |
| <FONT color="green">503</FONT> * @param expandedTypeID The expanded type ID being requested.<a name="line.503"></a> |
| <FONT color="green">504</FONT> *<a name="line.504"></a> |
| <FONT color="green">505</FONT> * @return true if it is OK to call the <a name="line.505"></a> |
| <FONT color="green">506</FONT> * {@link #getNextIndexed(int, int, int) getNextIndexed} method.<a name="line.506"></a> |
| <FONT color="green">507</FONT> */<a name="line.507"></a> |
| <FONT color="green">508</FONT> protected final boolean isIndexed(int expandedTypeID)<a name="line.508"></a> |
| <FONT color="green">509</FONT> {<a name="line.509"></a> |
| <FONT color="green">510</FONT> return (m_indexing<a name="line.510"></a> |
| <FONT color="green">511</FONT> && ExpandedNameTable.ELEMENT<a name="line.511"></a> |
| <FONT color="green">512</FONT> == m_expandedNameTable.getType(expandedTypeID)); <a name="line.512"></a> |
| <FONT color="green">513</FONT> }<a name="line.513"></a> |
| <FONT color="green">514</FONT> <a name="line.514"></a> |
| <FONT color="green">515</FONT> /**<a name="line.515"></a> |
| <FONT color="green">516</FONT> * Tell if a node is outside the axis being traversed. This method must be <a name="line.516"></a> |
| <FONT color="green">517</FONT> * implemented by derived classes, and must be robust enough to handle any <a name="line.517"></a> |
| <FONT color="green">518</FONT> * node that occurs after the axis root.<a name="line.518"></a> |
| <FONT color="green">519</FONT> *<a name="line.519"></a> |
| <FONT color="green">520</FONT> * @param axisRoot The root identity of the axis.<a name="line.520"></a> |
| <FONT color="green">521</FONT> * @param identity The node in question.<a name="line.521"></a> |
| <FONT color="green">522</FONT> *<a name="line.522"></a> |
| <FONT color="green">523</FONT> * @return true if the given node falls outside the axis being traversed.<a name="line.523"></a> |
| <FONT color="green">524</FONT> */<a name="line.524"></a> |
| <FONT color="green">525</FONT> protected abstract boolean isAfterAxis(int axisRoot, int identity);<a name="line.525"></a> |
| <FONT color="green">526</FONT> <a name="line.526"></a> |
| <FONT color="green">527</FONT> /**<a name="line.527"></a> |
| <FONT color="green">528</FONT> * Tell if the axis has been fully processed to tell if a the wait for <a name="line.528"></a> |
| <FONT color="green">529</FONT> * an arriving node should terminate. This method must be implemented <a name="line.529"></a> |
| <FONT color="green">530</FONT> * be a derived class.<a name="line.530"></a> |
| <FONT color="green">531</FONT> *<a name="line.531"></a> |
| <FONT color="green">532</FONT> * @param axisRoot The root identity of the axis.<a name="line.532"></a> |
| <FONT color="green">533</FONT> *<a name="line.533"></a> |
| <FONT color="green">534</FONT> * @return true if the axis has been fully processed.<a name="line.534"></a> |
| <FONT color="green">535</FONT> */<a name="line.535"></a> |
| <FONT color="green">536</FONT> protected abstract boolean axisHasBeenProcessed(int axisRoot);<a name="line.536"></a> |
| <FONT color="green">537</FONT> <a name="line.537"></a> |
| <FONT color="green">538</FONT> /**<a name="line.538"></a> |
| <FONT color="green">539</FONT> * Get the next indexed node that matches the expanded type ID. Before <a name="line.539"></a> |
| <FONT color="green">540</FONT> * calling this function, one should first call <a name="line.540"></a> |
| <FONT color="green">541</FONT> * {@link #isIndexed(int) isIndexed} to make sure that the index can <a name="line.541"></a> |
| <FONT color="green">542</FONT> * contain nodes that match the given expanded type ID.<a name="line.542"></a> |
| <FONT color="green">543</FONT> *<a name="line.543"></a> |
| <FONT color="green">544</FONT> * @param axisRoot The root identity of the axis.<a name="line.544"></a> |
| <FONT color="green">545</FONT> * @param nextPotential The node found must match or occur after this node.<a name="line.545"></a> |
| <FONT color="green">546</FONT> * @param expandedTypeID The expanded type ID for the request.<a name="line.546"></a> |
| <FONT color="green">547</FONT> *<a name="line.547"></a> |
| <FONT color="green">548</FONT> * @return The node ID or NULL if not found.<a name="line.548"></a> |
| <FONT color="green">549</FONT> */<a name="line.549"></a> |
| <FONT color="green">550</FONT> protected int getNextIndexed(int axisRoot, int nextPotential,<a name="line.550"></a> |
| <FONT color="green">551</FONT> int expandedTypeID)<a name="line.551"></a> |
| <FONT color="green">552</FONT> {<a name="line.552"></a> |
| <FONT color="green">553</FONT> <a name="line.553"></a> |
| <FONT color="green">554</FONT> int nsIndex = m_expandedNameTable.getNamespaceID(expandedTypeID);<a name="line.554"></a> |
| <FONT color="green">555</FONT> int lnIndex = m_expandedNameTable.getLocalNameID(expandedTypeID);<a name="line.555"></a> |
| <FONT color="green">556</FONT> <a name="line.556"></a> |
| <FONT color="green">557</FONT> while(true)<a name="line.557"></a> |
| <FONT color="green">558</FONT> {<a name="line.558"></a> |
| <FONT color="green">559</FONT> int next = findElementFromIndex(nsIndex, lnIndex, nextPotential);<a name="line.559"></a> |
| <FONT color="green">560</FONT> <a name="line.560"></a> |
| <FONT color="green">561</FONT> if (NOTPROCESSED != next)<a name="line.561"></a> |
| <FONT color="green">562</FONT> {<a name="line.562"></a> |
| <FONT color="green">563</FONT> if (isAfterAxis(axisRoot, next))<a name="line.563"></a> |
| <FONT color="green">564</FONT> return NULL;<a name="line.564"></a> |
| <FONT color="green">565</FONT> <a name="line.565"></a> |
| <FONT color="green">566</FONT> // System.out.println("Found node via index: "+first);<a name="line.566"></a> |
| <FONT color="green">567</FONT> return next;<a name="line.567"></a> |
| <FONT color="green">568</FONT> }<a name="line.568"></a> |
| <FONT color="green">569</FONT> else if(axisHasBeenProcessed(axisRoot))<a name="line.569"></a> |
| <FONT color="green">570</FONT> break;<a name="line.570"></a> |
| <FONT color="green">571</FONT> <a name="line.571"></a> |
| <FONT color="green">572</FONT> nextNode();<a name="line.572"></a> |
| <FONT color="green">573</FONT> }<a name="line.573"></a> |
| <FONT color="green">574</FONT> <a name="line.574"></a> |
| <FONT color="green">575</FONT> return DTM.NULL;<a name="line.575"></a> |
| <FONT color="green">576</FONT> }<a name="line.576"></a> |
| <FONT color="green">577</FONT> }<a name="line.577"></a> |
| <FONT color="green">578</FONT> <a name="line.578"></a> |
| <FONT color="green">579</FONT> /**<a name="line.579"></a> |
| <FONT color="green">580</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.580"></a> |
| <FONT color="green">581</FONT> */<a name="line.581"></a> |
| <FONT color="green">582</FONT> private class DescendantTraverser extends IndexedDTMAxisTraverser<a name="line.582"></a> |
| <FONT color="green">583</FONT> {<a name="line.583"></a> |
| <FONT color="green">584</FONT> /**<a name="line.584"></a> |
| <FONT color="green">585</FONT> * Get the first potential identity that can be returned. This should <a name="line.585"></a> |
| <FONT color="green">586</FONT> * be overridded by classes that need to return the self node.<a name="line.586"></a> |
| <FONT color="green">587</FONT> *<a name="line.587"></a> |
| <FONT color="green">588</FONT> * @param identity The node identity of the root context of the traversal.<a name="line.588"></a> |
| <FONT color="green">589</FONT> *<a name="line.589"></a> |
| <FONT color="green">590</FONT> * @return The first potential node that can be in the traversal.<a name="line.590"></a> |
| <FONT color="green">591</FONT> */<a name="line.591"></a> |
| <FONT color="green">592</FONT> protected int getFirstPotential(int identity)<a name="line.592"></a> |
| <FONT color="green">593</FONT> {<a name="line.593"></a> |
| <FONT color="green">594</FONT> return identity + 1;<a name="line.594"></a> |
| <FONT color="green">595</FONT> }<a name="line.595"></a> |
| <FONT color="green">596</FONT> <a name="line.596"></a> |
| <FONT color="green">597</FONT> /**<a name="line.597"></a> |
| <FONT color="green">598</FONT> * Tell if the axis has been fully processed to tell if a the wait for <a name="line.598"></a> |
| <FONT color="green">599</FONT> * an arriving node should terminate.<a name="line.599"></a> |
| <FONT color="green">600</FONT> *<a name="line.600"></a> |
| <FONT color="green">601</FONT> * @param axisRoot The root identity of the axis.<a name="line.601"></a> |
| <FONT color="green">602</FONT> *<a name="line.602"></a> |
| <FONT color="green">603</FONT> * @return true if the axis has been fully processed.<a name="line.603"></a> |
| <FONT color="green">604</FONT> */<a name="line.604"></a> |
| <FONT color="green">605</FONT> protected boolean axisHasBeenProcessed(int axisRoot)<a name="line.605"></a> |
| <FONT color="green">606</FONT> {<a name="line.606"></a> |
| <FONT color="green">607</FONT> return !(m_nextsib.elementAt(axisRoot) == NOTPROCESSED);<a name="line.607"></a> |
| <FONT color="green">608</FONT> }<a name="line.608"></a> |
| <FONT color="green">609</FONT> <a name="line.609"></a> |
| <FONT color="green">610</FONT> /**<a name="line.610"></a> |
| <FONT color="green">611</FONT> * Get the subtree root identity from the handle that was passed in by <a name="line.611"></a> |
| <FONT color="green">612</FONT> * the caller. Derived classes may override this to change the root <a name="line.612"></a> |
| <FONT color="green">613</FONT> * context of the traversal.<a name="line.613"></a> |
| <FONT color="green">614</FONT> * <a name="line.614"></a> |
| <FONT color="green">615</FONT> * @param handle handle to the root context.<a name="line.615"></a> |
| <FONT color="green">616</FONT> * @return identity of the root of the subtree.<a name="line.616"></a> |
| <FONT color="green">617</FONT> */<a name="line.617"></a> |
| <FONT color="green">618</FONT> protected int getSubtreeRoot(int handle)<a name="line.618"></a> |
| <FONT color="green">619</FONT> {<a name="line.619"></a> |
| <FONT color="green">620</FONT> return makeNodeIdentity(handle);<a name="line.620"></a> |
| <FONT color="green">621</FONT> }<a name="line.621"></a> |
| <FONT color="green">622</FONT> <a name="line.622"></a> |
| <FONT color="green">623</FONT> /**<a name="line.623"></a> |
| <FONT color="green">624</FONT> * Tell if this node identity is a descendant. Assumes that<a name="line.624"></a> |
| <FONT color="green">625</FONT> * the node info for the element has already been obtained.<a name="line.625"></a> |
| <FONT color="green">626</FONT> *<a name="line.626"></a> |
| <FONT color="green">627</FONT> * %REVIEW% This is really parentFollowsRootInDocumentOrder ...<a name="line.627"></a> |
| <FONT color="green">628</FONT> * which fails if the parent starts after the root ends.<a name="line.628"></a> |
| <FONT color="green">629</FONT> * May be sufficient for this class's logic, but misleadingly named!<a name="line.629"></a> |
| <FONT color="green">630</FONT> *<a name="line.630"></a> |
| <FONT color="green">631</FONT> * @param subtreeRootIdentity The root context of the subtree in question.<a name="line.631"></a> |
| <FONT color="green">632</FONT> * @param identity The index number of the node in question.<a name="line.632"></a> |
| <FONT color="green">633</FONT> * @return true if the index is a descendant of _startNode.<a name="line.633"></a> |
| <FONT color="green">634</FONT> */<a name="line.634"></a> |
| <FONT color="green">635</FONT> protected boolean isDescendant(int subtreeRootIdentity, int identity)<a name="line.635"></a> |
| <FONT color="green">636</FONT> {<a name="line.636"></a> |
| <FONT color="green">637</FONT> return _parent(identity) >= subtreeRootIdentity;<a name="line.637"></a> |
| <FONT color="green">638</FONT> }<a name="line.638"></a> |
| <FONT color="green">639</FONT> <a name="line.639"></a> |
| <FONT color="green">640</FONT> /**<a name="line.640"></a> |
| <FONT color="green">641</FONT> * Tell if a node is outside the axis being traversed. This method must be <a name="line.641"></a> |
| <FONT color="green">642</FONT> * implemented by derived classes, and must be robust enough to handle any <a name="line.642"></a> |
| <FONT color="green">643</FONT> * node that occurs after the axis root.<a name="line.643"></a> |
| <FONT color="green">644</FONT> *<a name="line.644"></a> |
| <FONT color="green">645</FONT> * @param axisRoot The root identity of the axis.<a name="line.645"></a> |
| <FONT color="green">646</FONT> * @param identity The node in question.<a name="line.646"></a> |
| <FONT color="green">647</FONT> *<a name="line.647"></a> |
| <FONT color="green">648</FONT> * @return true if the given node falls outside the axis being traversed.<a name="line.648"></a> |
| <FONT color="green">649</FONT> */<a name="line.649"></a> |
| <FONT color="green">650</FONT> protected boolean isAfterAxis(int axisRoot, int identity)<a name="line.650"></a> |
| <FONT color="green">651</FONT> { <a name="line.651"></a> |
| <FONT color="green">652</FONT> // %REVIEW% Is there *any* cheaper way to do this?<a name="line.652"></a> |
| <FONT color="green">653</FONT> // Yes. In ID space, compare to axisRoot's successor<a name="line.653"></a> |
| <FONT color="green">654</FONT> // (next-sib or ancestor's-next-sib). Probably shallower search.<a name="line.654"></a> |
| <FONT color="green">655</FONT> do<a name="line.655"></a> |
| <FONT color="green">656</FONT> {<a name="line.656"></a> |
| <FONT color="green">657</FONT> if(identity == axisRoot)<a name="line.657"></a> |
| <FONT color="green">658</FONT> return false;<a name="line.658"></a> |
| <FONT color="green">659</FONT> identity = m_parent.elementAt(identity);<a name="line.659"></a> |
| <FONT color="green">660</FONT> }<a name="line.660"></a> |
| <FONT color="green">661</FONT> while(identity >= axisRoot);<a name="line.661"></a> |
| <FONT color="green">662</FONT> <a name="line.662"></a> |
| <FONT color="green">663</FONT> return true;<a name="line.663"></a> |
| <FONT color="green">664</FONT> }<a name="line.664"></a> |
| <FONT color="green">665</FONT> <a name="line.665"></a> |
| <FONT color="green">666</FONT> /**<a name="line.666"></a> |
| <FONT color="green">667</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.667"></a> |
| <FONT color="green">668</FONT> * returned or the iteration will go into an infinate loop. So to traverse<a name="line.668"></a> |
| <FONT color="green">669</FONT> * an axis, the first function must be used to get the first node.<a name="line.669"></a> |
| <FONT color="green">670</FONT> *<a name="line.670"></a> |
| <FONT color="green">671</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.671"></a> |
| <FONT color="green">672</FONT> * the self node. <\p><a name="line.672"></a> |
| <FONT color="green">673</FONT> *<a name="line.673"></a> |
| <FONT color="green">674</FONT> * @param context The context node of this traversal. This is the point<a name="line.674"></a> |
| <FONT color="green">675</FONT> * of origin for the traversal -- its "root node" or starting point.<a name="line.675"></a> |
| <FONT color="green">676</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.676"></a> |
| <FONT color="green">677</FONT> *<a name="line.677"></a> |
| <FONT color="green">678</FONT> * @return the first node in the traversal.<a name="line.678"></a> |
| <FONT color="green">679</FONT> */<a name="line.679"></a> |
| <FONT color="green">680</FONT> public int first(int context, int expandedTypeID)<a name="line.680"></a> |
| <FONT color="green">681</FONT> {<a name="line.681"></a> |
| <FONT color="green">682</FONT> <a name="line.682"></a> |
| <FONT color="green">683</FONT> if (isIndexed(expandedTypeID))<a name="line.683"></a> |
| <FONT color="green">684</FONT> {<a name="line.684"></a> |
| <FONT color="green">685</FONT> int identity = getSubtreeRoot(context);<a name="line.685"></a> |
| <FONT color="green">686</FONT> int firstPotential = getFirstPotential(identity);<a name="line.686"></a> |
| <FONT color="green">687</FONT> <a name="line.687"></a> |
| <FONT color="green">688</FONT> return makeNodeHandle(getNextIndexed(identity, firstPotential, expandedTypeID));<a name="line.688"></a> |
| <FONT color="green">689</FONT> }<a name="line.689"></a> |
| <FONT color="green">690</FONT> <a name="line.690"></a> |
| <FONT color="green">691</FONT> return next(context, context, expandedTypeID);<a name="line.691"></a> |
| <FONT color="green">692</FONT> }<a name="line.692"></a> |
| <FONT color="green">693</FONT> <a name="line.693"></a> |
| <FONT color="green">694</FONT> /**<a name="line.694"></a> |
| <FONT color="green">695</FONT> * Traverse to the next node after the current node.<a name="line.695"></a> |
| <FONT color="green">696</FONT> *<a name="line.696"></a> |
| <FONT color="green">697</FONT> * @param context The context node of this iteration.<a name="line.697"></a> |
| <FONT color="green">698</FONT> * @param current The current node of the iteration.<a name="line.698"></a> |
| <FONT color="green">699</FONT> *<a name="line.699"></a> |
| <FONT color="green">700</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.700"></a> |
| <FONT color="green">701</FONT> */<a name="line.701"></a> |
| <FONT color="green">702</FONT> public int next(int context, int current)<a name="line.702"></a> |
| <FONT color="green">703</FONT> {<a name="line.703"></a> |
| <FONT color="green">704</FONT> <a name="line.704"></a> |
| <FONT color="green">705</FONT> int subtreeRootIdent = getSubtreeRoot(context);<a name="line.705"></a> |
| <FONT color="green">706</FONT> <a name="line.706"></a> |
| <FONT color="green">707</FONT> for (current = makeNodeIdentity(current) + 1; ; current++)<a name="line.707"></a> |
| <FONT color="green">708</FONT> {<a name="line.708"></a> |
| <FONT color="green">709</FONT> int type = _type(current); // may call nextNode()<a name="line.709"></a> |
| <FONT color="green">710</FONT> <a name="line.710"></a> |
| <FONT color="green">711</FONT> if (!isDescendant(subtreeRootIdent, current))<a name="line.711"></a> |
| <FONT color="green">712</FONT> return NULL;<a name="line.712"></a> |
| <FONT color="green">713</FONT> <a name="line.713"></a> |
| <FONT color="green">714</FONT> if (ATTRIBUTE_NODE == type || NAMESPACE_NODE == type)<a name="line.714"></a> |
| <FONT color="green">715</FONT> continue;<a name="line.715"></a> |
| <FONT color="green">716</FONT> <a name="line.716"></a> |
| <FONT color="green">717</FONT> return makeNodeHandle(current); // make handle.<a name="line.717"></a> |
| <FONT color="green">718</FONT> }<a name="line.718"></a> |
| <FONT color="green">719</FONT> }<a name="line.719"></a> |
| <FONT color="green">720</FONT> <a name="line.720"></a> |
| <FONT color="green">721</FONT> /**<a name="line.721"></a> |
| <FONT color="green">722</FONT> * Traverse to the next node after the current node that is matched<a name="line.722"></a> |
| <FONT color="green">723</FONT> * by the expanded type ID.<a name="line.723"></a> |
| <FONT color="green">724</FONT> *<a name="line.724"></a> |
| <FONT color="green">725</FONT> * @param context The context node of this iteration.<a name="line.725"></a> |
| <FONT color="green">726</FONT> * @param current The current node of the iteration.<a name="line.726"></a> |
| <FONT color="green">727</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.727"></a> |
| <FONT color="green">728</FONT> *<a name="line.728"></a> |
| <FONT color="green">729</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.729"></a> |
| <FONT color="green">730</FONT> */<a name="line.730"></a> |
| <FONT color="green">731</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.731"></a> |
| <FONT color="green">732</FONT> {<a name="line.732"></a> |
| <FONT color="green">733</FONT> <a name="line.733"></a> |
| <FONT color="green">734</FONT> int subtreeRootIdent = getSubtreeRoot(context);<a name="line.734"></a> |
| <FONT color="green">735</FONT> <a name="line.735"></a> |
| <FONT color="green">736</FONT> current = makeNodeIdentity(current) + 1;<a name="line.736"></a> |
| <FONT color="green">737</FONT> <a name="line.737"></a> |
| <FONT color="green">738</FONT> if (isIndexed(expandedTypeID))<a name="line.738"></a> |
| <FONT color="green">739</FONT> {<a name="line.739"></a> |
| <FONT color="green">740</FONT> return makeNodeHandle(getNextIndexed(subtreeRootIdent, current, expandedTypeID));<a name="line.740"></a> |
| <FONT color="green">741</FONT> }<a name="line.741"></a> |
| <FONT color="green">742</FONT> <a name="line.742"></a> |
| <FONT color="green">743</FONT> for (; ; current++)<a name="line.743"></a> |
| <FONT color="green">744</FONT> {<a name="line.744"></a> |
| <FONT color="green">745</FONT> int exptype = _exptype(current); // may call nextNode()<a name="line.745"></a> |
| <FONT color="green">746</FONT> <a name="line.746"></a> |
| <FONT color="green">747</FONT> if (!isDescendant(subtreeRootIdent, current))<a name="line.747"></a> |
| <FONT color="green">748</FONT> return NULL;<a name="line.748"></a> |
| <FONT color="green">749</FONT> <a name="line.749"></a> |
| <FONT color="green">750</FONT> if (exptype != expandedTypeID)<a name="line.750"></a> |
| <FONT color="green">751</FONT> continue;<a name="line.751"></a> |
| <FONT color="green">752</FONT> <a name="line.752"></a> |
| <FONT color="green">753</FONT> return makeNodeHandle(current); // make handle.<a name="line.753"></a> |
| <FONT color="green">754</FONT> }<a name="line.754"></a> |
| <FONT color="green">755</FONT> }<a name="line.755"></a> |
| <FONT color="green">756</FONT> }<a name="line.756"></a> |
| <FONT color="green">757</FONT> <a name="line.757"></a> |
| <FONT color="green">758</FONT> /**<a name="line.758"></a> |
| <FONT color="green">759</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.759"></a> |
| <FONT color="green">760</FONT> */<a name="line.760"></a> |
| <FONT color="green">761</FONT> private class DescendantOrSelfTraverser extends DescendantTraverser<a name="line.761"></a> |
| <FONT color="green">762</FONT> {<a name="line.762"></a> |
| <FONT color="green">763</FONT> <a name="line.763"></a> |
| <FONT color="green">764</FONT> /**<a name="line.764"></a> |
| <FONT color="green">765</FONT> * Get the first potential identity that can be returned, which is the <a name="line.765"></a> |
| <FONT color="green">766</FONT> * axis context, in this case.<a name="line.766"></a> |
| <FONT color="green">767</FONT> *<a name="line.767"></a> |
| <FONT color="green">768</FONT> * @param identity The node identity of the root context of the traversal.<a name="line.768"></a> |
| <FONT color="green">769</FONT> *<a name="line.769"></a> |
| <FONT color="green">770</FONT> * @return The axis context.<a name="line.770"></a> |
| <FONT color="green">771</FONT> */<a name="line.771"></a> |
| <FONT color="green">772</FONT> protected int getFirstPotential(int identity)<a name="line.772"></a> |
| <FONT color="green">773</FONT> {<a name="line.773"></a> |
| <FONT color="green">774</FONT> return identity;<a name="line.774"></a> |
| <FONT color="green">775</FONT> }<a name="line.775"></a> |
| <FONT color="green">776</FONT> <a name="line.776"></a> |
| <FONT color="green">777</FONT> /**<a name="line.777"></a> |
| <FONT color="green">778</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.778"></a> |
| <FONT color="green">779</FONT> * returned or the iteration will go into an infinate loop. To see if<a name="line.779"></a> |
| <FONT color="green">780</FONT> * the self node should be processed, use this function.<a name="line.780"></a> |
| <FONT color="green">781</FONT> *<a name="line.781"></a> |
| <FONT color="green">782</FONT> * @param context The context node of this traversal.<a name="line.782"></a> |
| <FONT color="green">783</FONT> *<a name="line.783"></a> |
| <FONT color="green">784</FONT> * @return the first node in the traversal.<a name="line.784"></a> |
| <FONT color="green">785</FONT> */<a name="line.785"></a> |
| <FONT color="green">786</FONT> public int first(int context)<a name="line.786"></a> |
| <FONT color="green">787</FONT> {<a name="line.787"></a> |
| <FONT color="green">788</FONT> return context;<a name="line.788"></a> |
| <FONT color="green">789</FONT> }<a name="line.789"></a> |
| <FONT color="green">790</FONT> }<a name="line.790"></a> |
| <FONT color="green">791</FONT> <a name="line.791"></a> |
| <FONT color="green">792</FONT> /**<a name="line.792"></a> |
| <FONT color="green">793</FONT> * Implements traversal of the entire subtree, including the root node.<a name="line.793"></a> |
| <FONT color="green">794</FONT> */<a name="line.794"></a> |
| <FONT color="green">795</FONT> private class AllFromNodeTraverser extends DescendantOrSelfTraverser<a name="line.795"></a> |
| <FONT color="green">796</FONT> {<a name="line.796"></a> |
| <FONT color="green">797</FONT> <a name="line.797"></a> |
| <FONT color="green">798</FONT> /**<a name="line.798"></a> |
| <FONT color="green">799</FONT> * Traverse to the next node after the current node.<a name="line.799"></a> |
| <FONT color="green">800</FONT> *<a name="line.800"></a> |
| <FONT color="green">801</FONT> * @param context The context node of this iteration.<a name="line.801"></a> |
| <FONT color="green">802</FONT> * @param current The current node of the iteration.<a name="line.802"></a> |
| <FONT color="green">803</FONT> *<a name="line.803"></a> |
| <FONT color="green">804</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.804"></a> |
| <FONT color="green">805</FONT> */<a name="line.805"></a> |
| <FONT color="green">806</FONT> public int next(int context, int current)<a name="line.806"></a> |
| <FONT color="green">807</FONT> {<a name="line.807"></a> |
| <FONT color="green">808</FONT> <a name="line.808"></a> |
| <FONT color="green">809</FONT> int subtreeRootIdent = makeNodeIdentity(context);<a name="line.809"></a> |
| <FONT color="green">810</FONT> <a name="line.810"></a> |
| <FONT color="green">811</FONT> for (current = makeNodeIdentity(current) + 1; ; current++)<a name="line.811"></a> |
| <FONT color="green">812</FONT> {<a name="line.812"></a> |
| <FONT color="green">813</FONT> // Trickological code: _exptype() has the side-effect of<a name="line.813"></a> |
| <FONT color="green">814</FONT> // running nextNode until the specified node has been loaded,<a name="line.814"></a> |
| <FONT color="green">815</FONT> // and thus can be used to ensure that incremental construction of<a name="line.815"></a> |
| <FONT color="green">816</FONT> // the DTM has gotten this far. Using it just for that side-effect<a name="line.816"></a> |
| <FONT color="green">817</FONT> // is quite a kluge...<a name="line.817"></a> |
| <FONT color="green">818</FONT> _exptype(current); // make sure it's here.<a name="line.818"></a> |
| <FONT color="green">819</FONT> <a name="line.819"></a> |
| <FONT color="green">820</FONT> if (!isDescendant(subtreeRootIdent, current))<a name="line.820"></a> |
| <FONT color="green">821</FONT> return NULL;<a name="line.821"></a> |
| <FONT color="green">822</FONT> <a name="line.822"></a> |
| <FONT color="green">823</FONT> return makeNodeHandle(current); // make handle.<a name="line.823"></a> |
| <FONT color="green">824</FONT> }<a name="line.824"></a> |
| <FONT color="green">825</FONT> }<a name="line.825"></a> |
| <FONT color="green">826</FONT> }<a name="line.826"></a> |
| <FONT color="green">827</FONT> <a name="line.827"></a> |
| <FONT color="green">828</FONT> /**<a name="line.828"></a> |
| <FONT color="green">829</FONT> * Implements traversal of the following access, in document order.<a name="line.829"></a> |
| <FONT color="green">830</FONT> */<a name="line.830"></a> |
| <FONT color="green">831</FONT> private class FollowingTraverser extends DescendantTraverser<a name="line.831"></a> |
| <FONT color="green">832</FONT> {<a name="line.832"></a> |
| <FONT color="green">833</FONT> <a name="line.833"></a> |
| <FONT color="green">834</FONT> /**<a name="line.834"></a> |
| <FONT color="green">835</FONT> * Get the first of the following.<a name="line.835"></a> |
| <FONT color="green">836</FONT> *<a name="line.836"></a> |
| <FONT color="green">837</FONT> * @param context The context node of this traversal. This is the point<a name="line.837"></a> |
| <FONT color="green">838</FONT> * that the traversal starts from.<a name="line.838"></a> |
| <FONT color="green">839</FONT> * @return the first node in the traversal.<a name="line.839"></a> |
| <FONT color="green">840</FONT> */<a name="line.840"></a> |
| <FONT color="green">841</FONT> public int first(int context)<a name="line.841"></a> |
| <FONT color="green">842</FONT> {<a name="line.842"></a> |
| <FONT color="green">843</FONT> // Compute in ID space<a name="line.843"></a> |
| <FONT color="green">844</FONT> context=makeNodeIdentity(context);<a name="line.844"></a> |
| <FONT color="green">845</FONT> <a name="line.845"></a> |
| <FONT color="green">846</FONT> int first;<a name="line.846"></a> |
| <FONT color="green">847</FONT> int type = _type(context);<a name="line.847"></a> |
| <FONT color="green">848</FONT> <a name="line.848"></a> |
| <FONT color="green">849</FONT> if ((DTM.ATTRIBUTE_NODE == type) || (DTM.NAMESPACE_NODE == type))<a name="line.849"></a> |
| <FONT color="green">850</FONT> {<a name="line.850"></a> |
| <FONT color="green">851</FONT> context = _parent(context);<a name="line.851"></a> |
| <FONT color="green">852</FONT> first = _firstch(context);<a name="line.852"></a> |
| <FONT color="green">853</FONT> <a name="line.853"></a> |
| <FONT color="green">854</FONT> if (NULL != first)<a name="line.854"></a> |
| <FONT color="green">855</FONT> return makeNodeHandle(first);<a name="line.855"></a> |
| <FONT color="green">856</FONT> }<a name="line.856"></a> |
| <FONT color="green">857</FONT> <a name="line.857"></a> |
| <FONT color="green">858</FONT> do<a name="line.858"></a> |
| <FONT color="green">859</FONT> {<a name="line.859"></a> |
| <FONT color="green">860</FONT> first = _nextsib(context);<a name="line.860"></a> |
| <FONT color="green">861</FONT> <a name="line.861"></a> |
| <FONT color="green">862</FONT> if (NULL == first)<a name="line.862"></a> |
| <FONT color="green">863</FONT> context = _parent(context);<a name="line.863"></a> |
| <FONT color="green">864</FONT> }<a name="line.864"></a> |
| <FONT color="green">865</FONT> while (NULL == first && NULL != context);<a name="line.865"></a> |
| <FONT color="green">866</FONT> <a name="line.866"></a> |
| <FONT color="green">867</FONT> return makeNodeHandle(first);<a name="line.867"></a> |
| <FONT color="green">868</FONT> }<a name="line.868"></a> |
| <FONT color="green">869</FONT> <a name="line.869"></a> |
| <FONT color="green">870</FONT> /**<a name="line.870"></a> |
| <FONT color="green">871</FONT> * Get the first of the following.<a name="line.871"></a> |
| <FONT color="green">872</FONT> *<a name="line.872"></a> |
| <FONT color="green">873</FONT> * @param context The context node of this traversal. This is the point<a name="line.873"></a> |
| <FONT color="green">874</FONT> * of origin for the traversal -- its "root node" or starting point.<a name="line.874"></a> |
| <FONT color="green">875</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.875"></a> |
| <FONT color="green">876</FONT> *<a name="line.876"></a> |
| <FONT color="green">877</FONT> * @return the first node in the traversal.<a name="line.877"></a> |
| <FONT color="green">878</FONT> */<a name="line.878"></a> |
| <FONT color="green">879</FONT> public int first(int context, int expandedTypeID)<a name="line.879"></a> |
| <FONT color="green">880</FONT> {<a name="line.880"></a> |
| <FONT color="green">881</FONT> // %REVIEW% This looks like it might want shift into identity space<a name="line.881"></a> |
| <FONT color="green">882</FONT> // to avoid repeated conversion in the individual functions<a name="line.882"></a> |
| <FONT color="green">883</FONT> int first;<a name="line.883"></a> |
| <FONT color="green">884</FONT> int type = getNodeType(context);<a name="line.884"></a> |
| <FONT color="green">885</FONT> <a name="line.885"></a> |
| <FONT color="green">886</FONT> if ((DTM.ATTRIBUTE_NODE == type) || (DTM.NAMESPACE_NODE == type))<a name="line.886"></a> |
| <FONT color="green">887</FONT> {<a name="line.887"></a> |
| <FONT color="green">888</FONT> context = getParent(context);<a name="line.888"></a> |
| <FONT color="green">889</FONT> first = getFirstChild(context);<a name="line.889"></a> |
| <FONT color="green">890</FONT> <a name="line.890"></a> |
| <FONT color="green">891</FONT> if (NULL != first)<a name="line.891"></a> |
| <FONT color="green">892</FONT> {<a name="line.892"></a> |
| <FONT color="green">893</FONT> if (getExpandedTypeID(first) == expandedTypeID)<a name="line.893"></a> |
| <FONT color="green">894</FONT> return first;<a name="line.894"></a> |
| <FONT color="green">895</FONT> else<a name="line.895"></a> |
| <FONT color="green">896</FONT> return next(context, first, expandedTypeID);<a name="line.896"></a> |
| <FONT color="green">897</FONT> }<a name="line.897"></a> |
| <FONT color="green">898</FONT> }<a name="line.898"></a> |
| <FONT color="green">899</FONT> <a name="line.899"></a> |
| <FONT color="green">900</FONT> do<a name="line.900"></a> |
| <FONT color="green">901</FONT> {<a name="line.901"></a> |
| <FONT color="green">902</FONT> first = getNextSibling(context);<a name="line.902"></a> |
| <FONT color="green">903</FONT> <a name="line.903"></a> |
| <FONT color="green">904</FONT> if (NULL == first)<a name="line.904"></a> |
| <FONT color="green">905</FONT> context = getParent(context);<a name="line.905"></a> |
| <FONT color="green">906</FONT> else<a name="line.906"></a> |
| <FONT color="green">907</FONT> {<a name="line.907"></a> |
| <FONT color="green">908</FONT> if (getExpandedTypeID(first) == expandedTypeID)<a name="line.908"></a> |
| <FONT color="green">909</FONT> return first;<a name="line.909"></a> |
| <FONT color="green">910</FONT> else<a name="line.910"></a> |
| <FONT color="green">911</FONT> return next(context, first, expandedTypeID);<a name="line.911"></a> |
| <FONT color="green">912</FONT> }<a name="line.912"></a> |
| <FONT color="green">913</FONT> }<a name="line.913"></a> |
| <FONT color="green">914</FONT> while (NULL == first && NULL != context);<a name="line.914"></a> |
| <FONT color="green">915</FONT> <a name="line.915"></a> |
| <FONT color="green">916</FONT> return first;<a name="line.916"></a> |
| <FONT color="green">917</FONT> }<a name="line.917"></a> |
| <FONT color="green">918</FONT> <a name="line.918"></a> |
| <FONT color="green">919</FONT> /**<a name="line.919"></a> |
| <FONT color="green">920</FONT> * Traverse to the next node after the current node.<a name="line.920"></a> |
| <FONT color="green">921</FONT> *<a name="line.921"></a> |
| <FONT color="green">922</FONT> * @param context The context node of this iteration.<a name="line.922"></a> |
| <FONT color="green">923</FONT> * @param current The current node of the iteration.<a name="line.923"></a> |
| <FONT color="green">924</FONT> *<a name="line.924"></a> |
| <FONT color="green">925</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.925"></a> |
| <FONT color="green">926</FONT> */<a name="line.926"></a> |
| <FONT color="green">927</FONT> public int next(int context, int current)<a name="line.927"></a> |
| <FONT color="green">928</FONT> {<a name="line.928"></a> |
| <FONT color="green">929</FONT> // Compute in identity space<a name="line.929"></a> |
| <FONT color="green">930</FONT> current=makeNodeIdentity(current);<a name="line.930"></a> |
| <FONT color="green">931</FONT> <a name="line.931"></a> |
| <FONT color="green">932</FONT> while (true)<a name="line.932"></a> |
| <FONT color="green">933</FONT> {<a name="line.933"></a> |
| <FONT color="green">934</FONT> current++; // Only works on IDs, not handles.<a name="line.934"></a> |
| <FONT color="green">935</FONT> <a name="line.935"></a> |
| <FONT color="green">936</FONT> // %REVIEW% Are we using handles or indexes?<a name="line.936"></a> |
| <FONT color="green">937</FONT> int type = _type(current); // may call nextNode()<a name="line.937"></a> |
| <FONT color="green">938</FONT> <a name="line.938"></a> |
| <FONT color="green">939</FONT> if (NULL == type)<a name="line.939"></a> |
| <FONT color="green">940</FONT> return NULL;<a name="line.940"></a> |
| <FONT color="green">941</FONT> <a name="line.941"></a> |
| <FONT color="green">942</FONT> if (ATTRIBUTE_NODE == type || NAMESPACE_NODE == type)<a name="line.942"></a> |
| <FONT color="green">943</FONT> continue;<a name="line.943"></a> |
| <FONT color="green">944</FONT> <a name="line.944"></a> |
| <FONT color="green">945</FONT> return makeNodeHandle(current); // make handle.<a name="line.945"></a> |
| <FONT color="green">946</FONT> }<a name="line.946"></a> |
| <FONT color="green">947</FONT> }<a name="line.947"></a> |
| <FONT color="green">948</FONT> <a name="line.948"></a> |
| <FONT color="green">949</FONT> /**<a name="line.949"></a> |
| <FONT color="green">950</FONT> * Traverse to the next node after the current node that is matched<a name="line.950"></a> |
| <FONT color="green">951</FONT> * by the expanded type ID.<a name="line.951"></a> |
| <FONT color="green">952</FONT> *<a name="line.952"></a> |
| <FONT color="green">953</FONT> * @param context The context node of this iteration.<a name="line.953"></a> |
| <FONT color="green">954</FONT> * @param current The current node of the iteration.<a name="line.954"></a> |
| <FONT color="green">955</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.955"></a> |
| <FONT color="green">956</FONT> *<a name="line.956"></a> |
| <FONT color="green">957</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.957"></a> |
| <FONT color="green">958</FONT> */<a name="line.958"></a> |
| <FONT color="green">959</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.959"></a> |
| <FONT color="green">960</FONT> {<a name="line.960"></a> |
| <FONT color="green">961</FONT> // Compute in ID space<a name="line.961"></a> |
| <FONT color="green">962</FONT> current=makeNodeIdentity(current);<a name="line.962"></a> |
| <FONT color="green">963</FONT> <a name="line.963"></a> |
| <FONT color="green">964</FONT> while (true)<a name="line.964"></a> |
| <FONT color="green">965</FONT> {<a name="line.965"></a> |
| <FONT color="green">966</FONT> current++;<a name="line.966"></a> |
| <FONT color="green">967</FONT> <a name="line.967"></a> |
| <FONT color="green">968</FONT> int etype = _exptype(current); // may call nextNode()<a name="line.968"></a> |
| <FONT color="green">969</FONT> <a name="line.969"></a> |
| <FONT color="green">970</FONT> if (NULL == etype)<a name="line.970"></a> |
| <FONT color="green">971</FONT> return NULL;<a name="line.971"></a> |
| <FONT color="green">972</FONT> <a name="line.972"></a> |
| <FONT color="green">973</FONT> if (etype != expandedTypeID)<a name="line.973"></a> |
| <FONT color="green">974</FONT> continue;<a name="line.974"></a> |
| <FONT color="green">975</FONT> <a name="line.975"></a> |
| <FONT color="green">976</FONT> return makeNodeHandle(current); // make handle.<a name="line.976"></a> |
| <FONT color="green">977</FONT> }<a name="line.977"></a> |
| <FONT color="green">978</FONT> }<a name="line.978"></a> |
| <FONT color="green">979</FONT> }<a name="line.979"></a> |
| <FONT color="green">980</FONT> <a name="line.980"></a> |
| <FONT color="green">981</FONT> /**<a name="line.981"></a> |
| <FONT color="green">982</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.982"></a> |
| <FONT color="green">983</FONT> */<a name="line.983"></a> |
| <FONT color="green">984</FONT> private class FollowingSiblingTraverser extends DTMAxisTraverser<a name="line.984"></a> |
| <FONT color="green">985</FONT> {<a name="line.985"></a> |
| <FONT color="green">986</FONT> <a name="line.986"></a> |
| <FONT color="green">987</FONT> /**<a name="line.987"></a> |
| <FONT color="green">988</FONT> * Traverse to the next node after the current node.<a name="line.988"></a> |
| <FONT color="green">989</FONT> *<a name="line.989"></a> |
| <FONT color="green">990</FONT> * @param context The context node of this iteration.<a name="line.990"></a> |
| <FONT color="green">991</FONT> * @param current The current node of the iteration.<a name="line.991"></a> |
| <FONT color="green">992</FONT> *<a name="line.992"></a> |
| <FONT color="green">993</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.993"></a> |
| <FONT color="green">994</FONT> */<a name="line.994"></a> |
| <FONT color="green">995</FONT> public int next(int context, int current)<a name="line.995"></a> |
| <FONT color="green">996</FONT> {<a name="line.996"></a> |
| <FONT color="green">997</FONT> return getNextSibling(current);<a name="line.997"></a> |
| <FONT color="green">998</FONT> }<a name="line.998"></a> |
| <FONT color="green">999</FONT> <a name="line.999"></a> |
| <FONT color="green">1000</FONT> /**<a name="line.1000"></a> |
| <FONT color="green">1001</FONT> * Traverse to the next node after the current node that is matched<a name="line.1001"></a> |
| <FONT color="green">1002</FONT> * by the expanded type ID.<a name="line.1002"></a> |
| <FONT color="green">1003</FONT> *<a name="line.1003"></a> |
| <FONT color="green">1004</FONT> * @param context The context node of this iteration.<a name="line.1004"></a> |
| <FONT color="green">1005</FONT> * @param current The current node of the iteration.<a name="line.1005"></a> |
| <FONT color="green">1006</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1006"></a> |
| <FONT color="green">1007</FONT> *<a name="line.1007"></a> |
| <FONT color="green">1008</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1008"></a> |
| <FONT color="green">1009</FONT> */<a name="line.1009"></a> |
| <FONT color="green">1010</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1010"></a> |
| <FONT color="green">1011</FONT> {<a name="line.1011"></a> |
| <FONT color="green">1012</FONT> <a name="line.1012"></a> |
| <FONT color="green">1013</FONT> while (DTM.NULL != (current = getNextSibling(current)))<a name="line.1013"></a> |
| <FONT color="green">1014</FONT> {<a name="line.1014"></a> |
| <FONT color="green">1015</FONT> if (getExpandedTypeID(current) == expandedTypeID)<a name="line.1015"></a> |
| <FONT color="green">1016</FONT> return current;<a name="line.1016"></a> |
| <FONT color="green">1017</FONT> }<a name="line.1017"></a> |
| <FONT color="green">1018</FONT> <a name="line.1018"></a> |
| <FONT color="green">1019</FONT> return NULL;<a name="line.1019"></a> |
| <FONT color="green">1020</FONT> }<a name="line.1020"></a> |
| <FONT color="green">1021</FONT> }<a name="line.1021"></a> |
| <FONT color="green">1022</FONT> <a name="line.1022"></a> |
| <FONT color="green">1023</FONT> /**<a name="line.1023"></a> |
| <FONT color="green">1024</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.1024"></a> |
| <FONT color="green">1025</FONT> */<a name="line.1025"></a> |
| <FONT color="green">1026</FONT> private class NamespaceDeclsTraverser extends DTMAxisTraverser<a name="line.1026"></a> |
| <FONT color="green">1027</FONT> {<a name="line.1027"></a> |
| <FONT color="green">1028</FONT> <a name="line.1028"></a> |
| <FONT color="green">1029</FONT> /**<a name="line.1029"></a> |
| <FONT color="green">1030</FONT> * Traverse to the next node after the current node.<a name="line.1030"></a> |
| <FONT color="green">1031</FONT> *<a name="line.1031"></a> |
| <FONT color="green">1032</FONT> * @param context The context node of this iteration.<a name="line.1032"></a> |
| <FONT color="green">1033</FONT> * @param current The current node of the iteration.<a name="line.1033"></a> |
| <FONT color="green">1034</FONT> *<a name="line.1034"></a> |
| <FONT color="green">1035</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1035"></a> |
| <FONT color="green">1036</FONT> */<a name="line.1036"></a> |
| <FONT color="green">1037</FONT> public int next(int context, int current)<a name="line.1037"></a> |
| <FONT color="green">1038</FONT> {<a name="line.1038"></a> |
| <FONT color="green">1039</FONT> <a name="line.1039"></a> |
| <FONT color="green">1040</FONT> return (context == current)<a name="line.1040"></a> |
| <FONT color="green">1041</FONT> ? getFirstNamespaceNode(context, false)<a name="line.1041"></a> |
| <FONT color="green">1042</FONT> : getNextNamespaceNode(context, current, false);<a name="line.1042"></a> |
| <FONT color="green">1043</FONT> }<a name="line.1043"></a> |
| <FONT color="green">1044</FONT> <a name="line.1044"></a> |
| <FONT color="green">1045</FONT> /**<a name="line.1045"></a> |
| <FONT color="green">1046</FONT> * Traverse to the next node after the current node that is matched<a name="line.1046"></a> |
| <FONT color="green">1047</FONT> * by the expanded type ID.<a name="line.1047"></a> |
| <FONT color="green">1048</FONT> *<a name="line.1048"></a> |
| <FONT color="green">1049</FONT> * @param context The context node of this iteration.<a name="line.1049"></a> |
| <FONT color="green">1050</FONT> * @param current The current node of the iteration.<a name="line.1050"></a> |
| <FONT color="green">1051</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1051"></a> |
| <FONT color="green">1052</FONT> *<a name="line.1052"></a> |
| <FONT color="green">1053</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1053"></a> |
| <FONT color="green">1054</FONT> */<a name="line.1054"></a> |
| <FONT color="green">1055</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1055"></a> |
| <FONT color="green">1056</FONT> {<a name="line.1056"></a> |
| <FONT color="green">1057</FONT> <a name="line.1057"></a> |
| <FONT color="green">1058</FONT> current = (context == current)<a name="line.1058"></a> |
| <FONT color="green">1059</FONT> ? getFirstNamespaceNode(context, false)<a name="line.1059"></a> |
| <FONT color="green">1060</FONT> : getNextNamespaceNode(context, current, false);<a name="line.1060"></a> |
| <FONT color="green">1061</FONT> <a name="line.1061"></a> |
| <FONT color="green">1062</FONT> do<a name="line.1062"></a> |
| <FONT color="green">1063</FONT> {<a name="line.1063"></a> |
| <FONT color="green">1064</FONT> if (getExpandedTypeID(current) == expandedTypeID)<a name="line.1064"></a> |
| <FONT color="green">1065</FONT> return current;<a name="line.1065"></a> |
| <FONT color="green">1066</FONT> }<a name="line.1066"></a> |
| <FONT color="green">1067</FONT> while (DTM.NULL<a name="line.1067"></a> |
| <FONT color="green">1068</FONT> != (current = getNextNamespaceNode(context, current, false)));<a name="line.1068"></a> |
| <FONT color="green">1069</FONT> <a name="line.1069"></a> |
| <FONT color="green">1070</FONT> return NULL;<a name="line.1070"></a> |
| <FONT color="green">1071</FONT> }<a name="line.1071"></a> |
| <FONT color="green">1072</FONT> }<a name="line.1072"></a> |
| <FONT color="green">1073</FONT> <a name="line.1073"></a> |
| <FONT color="green">1074</FONT> /**<a name="line.1074"></a> |
| <FONT color="green">1075</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.1075"></a> |
| <FONT color="green">1076</FONT> */<a name="line.1076"></a> |
| <FONT color="green">1077</FONT> private class NamespaceTraverser extends DTMAxisTraverser<a name="line.1077"></a> |
| <FONT color="green">1078</FONT> {<a name="line.1078"></a> |
| <FONT color="green">1079</FONT> <a name="line.1079"></a> |
| <FONT color="green">1080</FONT> /**<a name="line.1080"></a> |
| <FONT color="green">1081</FONT> * Traverse to the next node after the current node.<a name="line.1081"></a> |
| <FONT color="green">1082</FONT> *<a name="line.1082"></a> |
| <FONT color="green">1083</FONT> * @param context The context node of this iteration.<a name="line.1083"></a> |
| <FONT color="green">1084</FONT> * @param current The current node of the iteration.<a name="line.1084"></a> |
| <FONT color="green">1085</FONT> *<a name="line.1085"></a> |
| <FONT color="green">1086</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1086"></a> |
| <FONT color="green">1087</FONT> */<a name="line.1087"></a> |
| <FONT color="green">1088</FONT> public int next(int context, int current)<a name="line.1088"></a> |
| <FONT color="green">1089</FONT> {<a name="line.1089"></a> |
| <FONT color="green">1090</FONT> <a name="line.1090"></a> |
| <FONT color="green">1091</FONT> return (context == current)<a name="line.1091"></a> |
| <FONT color="green">1092</FONT> ? getFirstNamespaceNode(context, true)<a name="line.1092"></a> |
| <FONT color="green">1093</FONT> : getNextNamespaceNode(context, current, true);<a name="line.1093"></a> |
| <FONT color="green">1094</FONT> }<a name="line.1094"></a> |
| <FONT color="green">1095</FONT> <a name="line.1095"></a> |
| <FONT color="green">1096</FONT> /**<a name="line.1096"></a> |
| <FONT color="green">1097</FONT> * Traverse to the next node after the current node that is matched<a name="line.1097"></a> |
| <FONT color="green">1098</FONT> * by the expanded type ID.<a name="line.1098"></a> |
| <FONT color="green">1099</FONT> *<a name="line.1099"></a> |
| <FONT color="green">1100</FONT> * @param context The context node of this iteration.<a name="line.1100"></a> |
| <FONT color="green">1101</FONT> * @param current The current node of the iteration.<a name="line.1101"></a> |
| <FONT color="green">1102</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1102"></a> |
| <FONT color="green">1103</FONT> *<a name="line.1103"></a> |
| <FONT color="green">1104</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1104"></a> |
| <FONT color="green">1105</FONT> */<a name="line.1105"></a> |
| <FONT color="green">1106</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1106"></a> |
| <FONT color="green">1107</FONT> {<a name="line.1107"></a> |
| <FONT color="green">1108</FONT> <a name="line.1108"></a> |
| <FONT color="green">1109</FONT> current = (context == current)<a name="line.1109"></a> |
| <FONT color="green">1110</FONT> ? getFirstNamespaceNode(context, true)<a name="line.1110"></a> |
| <FONT color="green">1111</FONT> : getNextNamespaceNode(context, current, true);<a name="line.1111"></a> |
| <FONT color="green">1112</FONT> <a name="line.1112"></a> |
| <FONT color="green">1113</FONT> do<a name="line.1113"></a> |
| <FONT color="green">1114</FONT> {<a name="line.1114"></a> |
| <FONT color="green">1115</FONT> if (getExpandedTypeID(current) == expandedTypeID)<a name="line.1115"></a> |
| <FONT color="green">1116</FONT> return current;<a name="line.1116"></a> |
| <FONT color="green">1117</FONT> }<a name="line.1117"></a> |
| <FONT color="green">1118</FONT> while (DTM.NULL<a name="line.1118"></a> |
| <FONT color="green">1119</FONT> != (current = getNextNamespaceNode(context, current, true)));<a name="line.1119"></a> |
| <FONT color="green">1120</FONT> <a name="line.1120"></a> |
| <FONT color="green">1121</FONT> return NULL;<a name="line.1121"></a> |
| <FONT color="green">1122</FONT> }<a name="line.1122"></a> |
| <FONT color="green">1123</FONT> }<a name="line.1123"></a> |
| <FONT color="green">1124</FONT> <a name="line.1124"></a> |
| <FONT color="green">1125</FONT> /**<a name="line.1125"></a> |
| <FONT color="green">1126</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.1126"></a> |
| <FONT color="green">1127</FONT> */<a name="line.1127"></a> |
| <FONT color="green">1128</FONT> private class ParentTraverser extends DTMAxisTraverser<a name="line.1128"></a> |
| <FONT color="green">1129</FONT> {<a name="line.1129"></a> |
| <FONT color="green">1130</FONT> /**<a name="line.1130"></a> |
| <FONT color="green">1131</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.1131"></a> |
| <FONT color="green">1132</FONT> * returned or the iteration will go into an infinate loop. So to traverse <a name="line.1132"></a> |
| <FONT color="green">1133</FONT> * an axis, the first function must be used to get the first node.<a name="line.1133"></a> |
| <FONT color="green">1134</FONT> *<a name="line.1134"></a> |
| <FONT color="green">1135</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.1135"></a> |
| <FONT color="green">1136</FONT> * the self node. <\p><a name="line.1136"></a> |
| <FONT color="green">1137</FONT> *<a name="line.1137"></a> |
| <FONT color="green">1138</FONT> * @param context The context node of this traversal. This is the point<a name="line.1138"></a> |
| <FONT color="green">1139</FONT> * that the traversal starts from.<a name="line.1139"></a> |
| <FONT color="green">1140</FONT> * @return the first node in the traversal.<a name="line.1140"></a> |
| <FONT color="green">1141</FONT> */<a name="line.1141"></a> |
| <FONT color="green">1142</FONT> public int first(int context)<a name="line.1142"></a> |
| <FONT color="green">1143</FONT> {<a name="line.1143"></a> |
| <FONT color="green">1144</FONT> return getParent(context);<a name="line.1144"></a> |
| <FONT color="green">1145</FONT> }<a name="line.1145"></a> |
| <FONT color="green">1146</FONT> <a name="line.1146"></a> |
| <FONT color="green">1147</FONT> /**<a name="line.1147"></a> |
| <FONT color="green">1148</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.1148"></a> |
| <FONT color="green">1149</FONT> * returned or the iteration will go into an infinate loop. So to traverse <a name="line.1149"></a> |
| <FONT color="green">1150</FONT> * an axis, the first function must be used to get the first node.<a name="line.1150"></a> |
| <FONT color="green">1151</FONT> *<a name="line.1151"></a> |
| <FONT color="green">1152</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.1152"></a> |
| <FONT color="green">1153</FONT> * the self node. <\p><a name="line.1153"></a> |
| <FONT color="green">1154</FONT> *<a name="line.1154"></a> |
| <FONT color="green">1155</FONT> * @param context The context node of this traversal. This is the point<a name="line.1155"></a> |
| <FONT color="green">1156</FONT> * of origin for the traversal -- its "root node" or starting point.<a name="line.1156"></a> |
| <FONT color="green">1157</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1157"></a> |
| <FONT color="green">1158</FONT> *<a name="line.1158"></a> |
| <FONT color="green">1159</FONT> * @return the first node in the traversal.<a name="line.1159"></a> |
| <FONT color="green">1160</FONT> */<a name="line.1160"></a> |
| <FONT color="green">1161</FONT> public int first(int current, int expandedTypeID)<a name="line.1161"></a> |
| <FONT color="green">1162</FONT> {<a name="line.1162"></a> |
| <FONT color="green">1163</FONT> // Compute in ID space<a name="line.1163"></a> |
| <FONT color="green">1164</FONT> current = makeNodeIdentity(current);<a name="line.1164"></a> |
| <FONT color="green">1165</FONT> <a name="line.1165"></a> |
| <FONT color="green">1166</FONT> while (NULL != (current = m_parent.elementAt(current)))<a name="line.1166"></a> |
| <FONT color="green">1167</FONT> {<a name="line.1167"></a> |
| <FONT color="green">1168</FONT> if (m_exptype.elementAt(current) == expandedTypeID)<a name="line.1168"></a> |
| <FONT color="green">1169</FONT> return makeNodeHandle(current);<a name="line.1169"></a> |
| <FONT color="green">1170</FONT> }<a name="line.1170"></a> |
| <FONT color="green">1171</FONT> <a name="line.1171"></a> |
| <FONT color="green">1172</FONT> return NULL;<a name="line.1172"></a> |
| <FONT color="green">1173</FONT> }<a name="line.1173"></a> |
| <FONT color="green">1174</FONT> <a name="line.1174"></a> |
| <FONT color="green">1175</FONT> <a name="line.1175"></a> |
| <FONT color="green">1176</FONT> /**<a name="line.1176"></a> |
| <FONT color="green">1177</FONT> * Traverse to the next node after the current node.<a name="line.1177"></a> |
| <FONT color="green">1178</FONT> *<a name="line.1178"></a> |
| <FONT color="green">1179</FONT> * @param context The context node of this iteration.<a name="line.1179"></a> |
| <FONT color="green">1180</FONT> * @param current The current node of the iteration.<a name="line.1180"></a> |
| <FONT color="green">1181</FONT> *<a name="line.1181"></a> |
| <FONT color="green">1182</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1182"></a> |
| <FONT color="green">1183</FONT> */<a name="line.1183"></a> |
| <FONT color="green">1184</FONT> public int next(int context, int current)<a name="line.1184"></a> |
| <FONT color="green">1185</FONT> {<a name="line.1185"></a> |
| <FONT color="green">1186</FONT> <a name="line.1186"></a> |
| <FONT color="green">1187</FONT> return NULL;<a name="line.1187"></a> |
| <FONT color="green">1188</FONT> }<a name="line.1188"></a> |
| <FONT color="green">1189</FONT> <a name="line.1189"></a> |
| <FONT color="green">1190</FONT> <a name="line.1190"></a> |
| <FONT color="green">1191</FONT> <a name="line.1191"></a> |
| <FONT color="green">1192</FONT> /**<a name="line.1192"></a> |
| <FONT color="green">1193</FONT> * Traverse to the next node after the current node that is matched<a name="line.1193"></a> |
| <FONT color="green">1194</FONT> * by the expanded type ID.<a name="line.1194"></a> |
| <FONT color="green">1195</FONT> *<a name="line.1195"></a> |
| <FONT color="green">1196</FONT> * @param context The context node of this iteration.<a name="line.1196"></a> |
| <FONT color="green">1197</FONT> * @param current The current node of the iteration.<a name="line.1197"></a> |
| <FONT color="green">1198</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1198"></a> |
| <FONT color="green">1199</FONT> *<a name="line.1199"></a> |
| <FONT color="green">1200</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1200"></a> |
| <FONT color="green">1201</FONT> */<a name="line.1201"></a> |
| <FONT color="green">1202</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1202"></a> |
| <FONT color="green">1203</FONT> {<a name="line.1203"></a> |
| <FONT color="green">1204</FONT> <a name="line.1204"></a> |
| <FONT color="green">1205</FONT> return NULL;<a name="line.1205"></a> |
| <FONT color="green">1206</FONT> }<a name="line.1206"></a> |
| <FONT color="green">1207</FONT> }<a name="line.1207"></a> |
| <FONT color="green">1208</FONT> <a name="line.1208"></a> |
| <FONT color="green">1209</FONT> /**<a name="line.1209"></a> |
| <FONT color="green">1210</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.1210"></a> |
| <FONT color="green">1211</FONT> */<a name="line.1211"></a> |
| <FONT color="green">1212</FONT> private class PrecedingTraverser extends DTMAxisTraverser<a name="line.1212"></a> |
| <FONT color="green">1213</FONT> {<a name="line.1213"></a> |
| <FONT color="green">1214</FONT> <a name="line.1214"></a> |
| <FONT color="green">1215</FONT> /**<a name="line.1215"></a> |
| <FONT color="green">1216</FONT> * Tell if the current identity is an ancestor of the context identity.<a name="line.1216"></a> |
| <FONT color="green">1217</FONT> * This is an expensive operation, made worse by the stateless traversal.<a name="line.1217"></a> |
| <FONT color="green">1218</FONT> * But the preceding axis is used fairly infrequently.<a name="line.1218"></a> |
| <FONT color="green">1219</FONT> *<a name="line.1219"></a> |
| <FONT color="green">1220</FONT> * @param contextIdent The context node of the axis traversal.<a name="line.1220"></a> |
| <FONT color="green">1221</FONT> * @param currentIdent The node in question.<a name="line.1221"></a> |
| <FONT color="green">1222</FONT> * @return true if the currentIdent node is an ancestor of contextIdent.<a name="line.1222"></a> |
| <FONT color="green">1223</FONT> */<a name="line.1223"></a> |
| <FONT color="green">1224</FONT> protected boolean isAncestor(int contextIdent, int currentIdent)<a name="line.1224"></a> |
| <FONT color="green">1225</FONT> {<a name="line.1225"></a> |
| <FONT color="green">1226</FONT> // %REVIEW% See comments in IsAfterAxis; using the "successor" of<a name="line.1226"></a> |
| <FONT color="green">1227</FONT> // contextIdent is probably more efficient.<a name="line.1227"></a> |
| <FONT color="green">1228</FONT> for (contextIdent = m_parent.elementAt(contextIdent); DTM.NULL != contextIdent;<a name="line.1228"></a> |
| <FONT color="green">1229</FONT> contextIdent = m_parent.elementAt(contextIdent))<a name="line.1229"></a> |
| <FONT color="green">1230</FONT> {<a name="line.1230"></a> |
| <FONT color="green">1231</FONT> if (contextIdent == currentIdent)<a name="line.1231"></a> |
| <FONT color="green">1232</FONT> return true;<a name="line.1232"></a> |
| <FONT color="green">1233</FONT> }<a name="line.1233"></a> |
| <FONT color="green">1234</FONT> <a name="line.1234"></a> |
| <FONT color="green">1235</FONT> return false;<a name="line.1235"></a> |
| <FONT color="green">1236</FONT> }<a name="line.1236"></a> |
| <FONT color="green">1237</FONT> <a name="line.1237"></a> |
| <FONT color="green">1238</FONT> /**<a name="line.1238"></a> |
| <FONT color="green">1239</FONT> * Traverse to the next node after the current node.<a name="line.1239"></a> |
| <FONT color="green">1240</FONT> *<a name="line.1240"></a> |
| <FONT color="green">1241</FONT> * @param context The context node of this iteration.<a name="line.1241"></a> |
| <FONT color="green">1242</FONT> * @param current The current node of the iteration.<a name="line.1242"></a> |
| <FONT color="green">1243</FONT> *<a name="line.1243"></a> |
| <FONT color="green">1244</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1244"></a> |
| <FONT color="green">1245</FONT> */<a name="line.1245"></a> |
| <FONT color="green">1246</FONT> public int next(int context, int current)<a name="line.1246"></a> |
| <FONT color="green">1247</FONT> {<a name="line.1247"></a> |
| <FONT color="green">1248</FONT> // compute in ID space<a name="line.1248"></a> |
| <FONT color="green">1249</FONT> int subtreeRootIdent = makeNodeIdentity(context);<a name="line.1249"></a> |
| <FONT color="green">1250</FONT> <a name="line.1250"></a> |
| <FONT color="green">1251</FONT> for (current = makeNodeIdentity(current) - 1; current >= 0; current--)<a name="line.1251"></a> |
| <FONT color="green">1252</FONT> {<a name="line.1252"></a> |
| <FONT color="green">1253</FONT> short type = _type(current);<a name="line.1253"></a> |
| <FONT color="green">1254</FONT> <a name="line.1254"></a> |
| <FONT color="green">1255</FONT> if (ATTRIBUTE_NODE == type || NAMESPACE_NODE == type<a name="line.1255"></a> |
| <FONT color="green">1256</FONT> || isAncestor(subtreeRootIdent, current))<a name="line.1256"></a> |
| <FONT color="green">1257</FONT> continue;<a name="line.1257"></a> |
| <FONT color="green">1258</FONT> <a name="line.1258"></a> |
| <FONT color="green">1259</FONT> return makeNodeHandle(current); // make handle.<a name="line.1259"></a> |
| <FONT color="green">1260</FONT> }<a name="line.1260"></a> |
| <FONT color="green">1261</FONT> <a name="line.1261"></a> |
| <FONT color="green">1262</FONT> return NULL;<a name="line.1262"></a> |
| <FONT color="green">1263</FONT> }<a name="line.1263"></a> |
| <FONT color="green">1264</FONT> <a name="line.1264"></a> |
| <FONT color="green">1265</FONT> /**<a name="line.1265"></a> |
| <FONT color="green">1266</FONT> * Traverse to the next node after the current node that is matched<a name="line.1266"></a> |
| <FONT color="green">1267</FONT> * by the expanded type ID.<a name="line.1267"></a> |
| <FONT color="green">1268</FONT> *<a name="line.1268"></a> |
| <FONT color="green">1269</FONT> * @param context The context node of this iteration.<a name="line.1269"></a> |
| <FONT color="green">1270</FONT> * @param current The current node of the iteration.<a name="line.1270"></a> |
| <FONT color="green">1271</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1271"></a> |
| <FONT color="green">1272</FONT> *<a name="line.1272"></a> |
| <FONT color="green">1273</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1273"></a> |
| <FONT color="green">1274</FONT> */<a name="line.1274"></a> |
| <FONT color="green">1275</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1275"></a> |
| <FONT color="green">1276</FONT> {<a name="line.1276"></a> |
| <FONT color="green">1277</FONT> // Compute in ID space<a name="line.1277"></a> |
| <FONT color="green">1278</FONT> int subtreeRootIdent = makeNodeIdentity(context);<a name="line.1278"></a> |
| <FONT color="green">1279</FONT> <a name="line.1279"></a> |
| <FONT color="green">1280</FONT> for (current = makeNodeIdentity(current) - 1; current >= 0; current--)<a name="line.1280"></a> |
| <FONT color="green">1281</FONT> {<a name="line.1281"></a> |
| <FONT color="green">1282</FONT> int exptype = m_exptype.elementAt(current);<a name="line.1282"></a> |
| <FONT color="green">1283</FONT> <a name="line.1283"></a> |
| <FONT color="green">1284</FONT> if (exptype != expandedTypeID<a name="line.1284"></a> |
| <FONT color="green">1285</FONT> || isAncestor(subtreeRootIdent, current))<a name="line.1285"></a> |
| <FONT color="green">1286</FONT> continue;<a name="line.1286"></a> |
| <FONT color="green">1287</FONT> <a name="line.1287"></a> |
| <FONT color="green">1288</FONT> return makeNodeHandle(current); // make handle.<a name="line.1288"></a> |
| <FONT color="green">1289</FONT> }<a name="line.1289"></a> |
| <FONT color="green">1290</FONT> <a name="line.1290"></a> |
| <FONT color="green">1291</FONT> return NULL;<a name="line.1291"></a> |
| <FONT color="green">1292</FONT> }<a name="line.1292"></a> |
| <FONT color="green">1293</FONT> }<a name="line.1293"></a> |
| <FONT color="green">1294</FONT> <a name="line.1294"></a> |
| <FONT color="green">1295</FONT> /**<a name="line.1295"></a> |
| <FONT color="green">1296</FONT> * Implements traversal of the Ancestor and the Preceding axis,<a name="line.1296"></a> |
| <FONT color="green">1297</FONT> * in reverse document order.<a name="line.1297"></a> |
| <FONT color="green">1298</FONT> */<a name="line.1298"></a> |
| <FONT color="green">1299</FONT> private class PrecedingAndAncestorTraverser extends DTMAxisTraverser<a name="line.1299"></a> |
| <FONT color="green">1300</FONT> {<a name="line.1300"></a> |
| <FONT color="green">1301</FONT> <a name="line.1301"></a> |
| <FONT color="green">1302</FONT> /**<a name="line.1302"></a> |
| <FONT color="green">1303</FONT> * Traverse to the next node after the current node.<a name="line.1303"></a> |
| <FONT color="green">1304</FONT> *<a name="line.1304"></a> |
| <FONT color="green">1305</FONT> * @param context The context node of this iteration.<a name="line.1305"></a> |
| <FONT color="green">1306</FONT> * @param current The current node of the iteration.<a name="line.1306"></a> |
| <FONT color="green">1307</FONT> *<a name="line.1307"></a> |
| <FONT color="green">1308</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1308"></a> |
| <FONT color="green">1309</FONT> */<a name="line.1309"></a> |
| <FONT color="green">1310</FONT> public int next(int context, int current)<a name="line.1310"></a> |
| <FONT color="green">1311</FONT> {<a name="line.1311"></a> |
| <FONT color="green">1312</FONT> // Compute in ID space<a name="line.1312"></a> |
| <FONT color="green">1313</FONT> int subtreeRootIdent = makeNodeIdentity(context );<a name="line.1313"></a> |
| <FONT color="green">1314</FONT> <a name="line.1314"></a> |
| <FONT color="green">1315</FONT> for (current = makeNodeIdentity(current) - 1; current >= 0; current--)<a name="line.1315"></a> |
| <FONT color="green">1316</FONT> {<a name="line.1316"></a> |
| <FONT color="green">1317</FONT> short type = _type(current);<a name="line.1317"></a> |
| <FONT color="green">1318</FONT> <a name="line.1318"></a> |
| <FONT color="green">1319</FONT> if (ATTRIBUTE_NODE == type || NAMESPACE_NODE == type)<a name="line.1319"></a> |
| <FONT color="green">1320</FONT> continue;<a name="line.1320"></a> |
| <FONT color="green">1321</FONT> <a name="line.1321"></a> |
| <FONT color="green">1322</FONT> return makeNodeHandle(current); // make handle.<a name="line.1322"></a> |
| <FONT color="green">1323</FONT> }<a name="line.1323"></a> |
| <FONT color="green">1324</FONT> <a name="line.1324"></a> |
| <FONT color="green">1325</FONT> return NULL;<a name="line.1325"></a> |
| <FONT color="green">1326</FONT> }<a name="line.1326"></a> |
| <FONT color="green">1327</FONT> <a name="line.1327"></a> |
| <FONT color="green">1328</FONT> /**<a name="line.1328"></a> |
| <FONT color="green">1329</FONT> * Traverse to the next node after the current node that is matched<a name="line.1329"></a> |
| <FONT color="green">1330</FONT> * by the expanded type ID.<a name="line.1330"></a> |
| <FONT color="green">1331</FONT> *<a name="line.1331"></a> |
| <FONT color="green">1332</FONT> * @param context The context node of this iteration.<a name="line.1332"></a> |
| <FONT color="green">1333</FONT> * @param current The current node of the iteration.<a name="line.1333"></a> |
| <FONT color="green">1334</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1334"></a> |
| <FONT color="green">1335</FONT> *<a name="line.1335"></a> |
| <FONT color="green">1336</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1336"></a> |
| <FONT color="green">1337</FONT> */<a name="line.1337"></a> |
| <FONT color="green">1338</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1338"></a> |
| <FONT color="green">1339</FONT> {<a name="line.1339"></a> |
| <FONT color="green">1340</FONT> // Compute in ID space<a name="line.1340"></a> |
| <FONT color="green">1341</FONT> int subtreeRootIdent = makeNodeIdentity(context);<a name="line.1341"></a> |
| <FONT color="green">1342</FONT> <a name="line.1342"></a> |
| <FONT color="green">1343</FONT> for (current = makeNodeIdentity(current) - 1; current >= 0; current--)<a name="line.1343"></a> |
| <FONT color="green">1344</FONT> {<a name="line.1344"></a> |
| <FONT color="green">1345</FONT> int exptype = m_exptype.elementAt(current);<a name="line.1345"></a> |
| <FONT color="green">1346</FONT> <a name="line.1346"></a> |
| <FONT color="green">1347</FONT> if (exptype != expandedTypeID)<a name="line.1347"></a> |
| <FONT color="green">1348</FONT> continue;<a name="line.1348"></a> |
| <FONT color="green">1349</FONT> <a name="line.1349"></a> |
| <FONT color="green">1350</FONT> return makeNodeHandle(current); // make handle.<a name="line.1350"></a> |
| <FONT color="green">1351</FONT> }<a name="line.1351"></a> |
| <FONT color="green">1352</FONT> <a name="line.1352"></a> |
| <FONT color="green">1353</FONT> return NULL;<a name="line.1353"></a> |
| <FONT color="green">1354</FONT> }<a name="line.1354"></a> |
| <FONT color="green">1355</FONT> }<a name="line.1355"></a> |
| <FONT color="green">1356</FONT> <a name="line.1356"></a> |
| <FONT color="green">1357</FONT> /**<a name="line.1357"></a> |
| <FONT color="green">1358</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.1358"></a> |
| <FONT color="green">1359</FONT> */<a name="line.1359"></a> |
| <FONT color="green">1360</FONT> private class PrecedingSiblingTraverser extends DTMAxisTraverser<a name="line.1360"></a> |
| <FONT color="green">1361</FONT> {<a name="line.1361"></a> |
| <FONT color="green">1362</FONT> <a name="line.1362"></a> |
| <FONT color="green">1363</FONT> /**<a name="line.1363"></a> |
| <FONT color="green">1364</FONT> * Traverse to the next node after the current node.<a name="line.1364"></a> |
| <FONT color="green">1365</FONT> *<a name="line.1365"></a> |
| <FONT color="green">1366</FONT> * @param context The context node of this iteration.<a name="line.1366"></a> |
| <FONT color="green">1367</FONT> * @param current The current node of the iteration.<a name="line.1367"></a> |
| <FONT color="green">1368</FONT> *<a name="line.1368"></a> |
| <FONT color="green">1369</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1369"></a> |
| <FONT color="green">1370</FONT> */<a name="line.1370"></a> |
| <FONT color="green">1371</FONT> public int next(int context, int current)<a name="line.1371"></a> |
| <FONT color="green">1372</FONT> {<a name="line.1372"></a> |
| <FONT color="green">1373</FONT> return getPreviousSibling(current);<a name="line.1373"></a> |
| <FONT color="green">1374</FONT> }<a name="line.1374"></a> |
| <FONT color="green">1375</FONT> <a name="line.1375"></a> |
| <FONT color="green">1376</FONT> /**<a name="line.1376"></a> |
| <FONT color="green">1377</FONT> * Traverse to the next node after the current node that is matched<a name="line.1377"></a> |
| <FONT color="green">1378</FONT> * by the expanded type ID.<a name="line.1378"></a> |
| <FONT color="green">1379</FONT> *<a name="line.1379"></a> |
| <FONT color="green">1380</FONT> * @param context The context node of this iteration.<a name="line.1380"></a> |
| <FONT color="green">1381</FONT> * @param current The current node of the iteration.<a name="line.1381"></a> |
| <FONT color="green">1382</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1382"></a> |
| <FONT color="green">1383</FONT> *<a name="line.1383"></a> |
| <FONT color="green">1384</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1384"></a> |
| <FONT color="green">1385</FONT> */<a name="line.1385"></a> |
| <FONT color="green">1386</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1386"></a> |
| <FONT color="green">1387</FONT> {<a name="line.1387"></a> |
| <FONT color="green">1388</FONT> <a name="line.1388"></a> |
| <FONT color="green">1389</FONT> while (DTM.NULL != (current = getPreviousSibling(current)))<a name="line.1389"></a> |
| <FONT color="green">1390</FONT> {<a name="line.1390"></a> |
| <FONT color="green">1391</FONT> if (getExpandedTypeID(current) == expandedTypeID)<a name="line.1391"></a> |
| <FONT color="green">1392</FONT> return current;<a name="line.1392"></a> |
| <FONT color="green">1393</FONT> }<a name="line.1393"></a> |
| <FONT color="green">1394</FONT> <a name="line.1394"></a> |
| <FONT color="green">1395</FONT> return NULL;<a name="line.1395"></a> |
| <FONT color="green">1396</FONT> }<a name="line.1396"></a> |
| <FONT color="green">1397</FONT> }<a name="line.1397"></a> |
| <FONT color="green">1398</FONT> <a name="line.1398"></a> |
| <FONT color="green">1399</FONT> /**<a name="line.1399"></a> |
| <FONT color="green">1400</FONT> * Implements traversal of the Self axis.<a name="line.1400"></a> |
| <FONT color="green">1401</FONT> */<a name="line.1401"></a> |
| <FONT color="green">1402</FONT> private class SelfTraverser extends DTMAxisTraverser<a name="line.1402"></a> |
| <FONT color="green">1403</FONT> {<a name="line.1403"></a> |
| <FONT color="green">1404</FONT> <a name="line.1404"></a> |
| <FONT color="green">1405</FONT> /**<a name="line.1405"></a> |
| <FONT color="green">1406</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.1406"></a> |
| <FONT color="green">1407</FONT> * returned or the iteration will go into an infinate loop. To see if<a name="line.1407"></a> |
| <FONT color="green">1408</FONT> * the self node should be processed, use this function.<a name="line.1408"></a> |
| <FONT color="green">1409</FONT> *<a name="line.1409"></a> |
| <FONT color="green">1410</FONT> * @param context The context node of this traversal.<a name="line.1410"></a> |
| <FONT color="green">1411</FONT> *<a name="line.1411"></a> |
| <FONT color="green">1412</FONT> * @return the first node in the traversal.<a name="line.1412"></a> |
| <FONT color="green">1413</FONT> */<a name="line.1413"></a> |
| <FONT color="green">1414</FONT> public int first(int context)<a name="line.1414"></a> |
| <FONT color="green">1415</FONT> {<a name="line.1415"></a> |
| <FONT color="green">1416</FONT> return context;<a name="line.1416"></a> |
| <FONT color="green">1417</FONT> }<a name="line.1417"></a> |
| <FONT color="green">1418</FONT> <a name="line.1418"></a> |
| <FONT color="green">1419</FONT> /**<a name="line.1419"></a> |
| <FONT color="green">1420</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.1420"></a> |
| <FONT color="green">1421</FONT> * returned or the iteration will go into an infinate loop. To see if<a name="line.1421"></a> |
| <FONT color="green">1422</FONT> * the self node should be processed, use this function. If the context<a name="line.1422"></a> |
| <FONT color="green">1423</FONT> * node does not match the expanded type ID, this function will return<a name="line.1423"></a> |
| <FONT color="green">1424</FONT> * false.<a name="line.1424"></a> |
| <FONT color="green">1425</FONT> *<a name="line.1425"></a> |
| <FONT color="green">1426</FONT> * @param context The context node of this traversal.<a name="line.1426"></a> |
| <FONT color="green">1427</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1427"></a> |
| <FONT color="green">1428</FONT> *<a name="line.1428"></a> |
| <FONT color="green">1429</FONT> * @return the first node in the traversal.<a name="line.1429"></a> |
| <FONT color="green">1430</FONT> */<a name="line.1430"></a> |
| <FONT color="green">1431</FONT> public int first(int context, int expandedTypeID)<a name="line.1431"></a> |
| <FONT color="green">1432</FONT> {<a name="line.1432"></a> |
| <FONT color="green">1433</FONT> return (getExpandedTypeID(context) == expandedTypeID) ? context : NULL;<a name="line.1433"></a> |
| <FONT color="green">1434</FONT> }<a name="line.1434"></a> |
| <FONT color="green">1435</FONT> <a name="line.1435"></a> |
| <FONT color="green">1436</FONT> /**<a name="line.1436"></a> |
| <FONT color="green">1437</FONT> * Traverse to the next node after the current node.<a name="line.1437"></a> |
| <FONT color="green">1438</FONT> *<a name="line.1438"></a> |
| <FONT color="green">1439</FONT> * @param context The context node of this iteration.<a name="line.1439"></a> |
| <FONT color="green">1440</FONT> * @param current The current node of the iteration.<a name="line.1440"></a> |
| <FONT color="green">1441</FONT> *<a name="line.1441"></a> |
| <FONT color="green">1442</FONT> * @return Always return NULL for this axis.<a name="line.1442"></a> |
| <FONT color="green">1443</FONT> */<a name="line.1443"></a> |
| <FONT color="green">1444</FONT> public int next(int context, int current)<a name="line.1444"></a> |
| <FONT color="green">1445</FONT> {<a name="line.1445"></a> |
| <FONT color="green">1446</FONT> return NULL;<a name="line.1446"></a> |
| <FONT color="green">1447</FONT> }<a name="line.1447"></a> |
| <FONT color="green">1448</FONT> <a name="line.1448"></a> |
| <FONT color="green">1449</FONT> /**<a name="line.1449"></a> |
| <FONT color="green">1450</FONT> * Traverse to the next node after the current node that is matched<a name="line.1450"></a> |
| <FONT color="green">1451</FONT> * by the expanded type ID.<a name="line.1451"></a> |
| <FONT color="green">1452</FONT> *<a name="line.1452"></a> |
| <FONT color="green">1453</FONT> * @param context The context node of this iteration.<a name="line.1453"></a> |
| <FONT color="green">1454</FONT> * @param current The current node of the iteration.<a name="line.1454"></a> |
| <FONT color="green">1455</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1455"></a> |
| <FONT color="green">1456</FONT> *<a name="line.1456"></a> |
| <FONT color="green">1457</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1457"></a> |
| <FONT color="green">1458</FONT> */<a name="line.1458"></a> |
| <FONT color="green">1459</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1459"></a> |
| <FONT color="green">1460</FONT> {<a name="line.1460"></a> |
| <FONT color="green">1461</FONT> return NULL;<a name="line.1461"></a> |
| <FONT color="green">1462</FONT> }<a name="line.1462"></a> |
| <FONT color="green">1463</FONT> }<a name="line.1463"></a> |
| <FONT color="green">1464</FONT> <a name="line.1464"></a> |
| <FONT color="green">1465</FONT> /**<a name="line.1465"></a> |
| <FONT color="green">1466</FONT> * Implements traversal of the Ancestor access, in reverse document order.<a name="line.1466"></a> |
| <FONT color="green">1467</FONT> */<a name="line.1467"></a> |
| <FONT color="green">1468</FONT> private class AllFromRootTraverser extends AllFromNodeTraverser<a name="line.1468"></a> |
| <FONT color="green">1469</FONT> {<a name="line.1469"></a> |
| <FONT color="green">1470</FONT> <a name="line.1470"></a> |
| <FONT color="green">1471</FONT> /**<a name="line.1471"></a> |
| <FONT color="green">1472</FONT> * Return the root.<a name="line.1472"></a> |
| <FONT color="green">1473</FONT> *<a name="line.1473"></a> |
| <FONT color="green">1474</FONT> * @param context The context node of this traversal.<a name="line.1474"></a> |
| <FONT color="green">1475</FONT> *<a name="line.1475"></a> |
| <FONT color="green">1476</FONT> * @return the first node in the traversal.<a name="line.1476"></a> |
| <FONT color="green">1477</FONT> */<a name="line.1477"></a> |
| <FONT color="green">1478</FONT> public int first(int context)<a name="line.1478"></a> |
| <FONT color="green">1479</FONT> {<a name="line.1479"></a> |
| <FONT color="green">1480</FONT> return getDocumentRoot(context);<a name="line.1480"></a> |
| <FONT color="green">1481</FONT> }<a name="line.1481"></a> |
| <FONT color="green">1482</FONT> <a name="line.1482"></a> |
| <FONT color="green">1483</FONT> /**<a name="line.1483"></a> |
| <FONT color="green">1484</FONT> * Return the root if it matches the expanded type ID.<a name="line.1484"></a> |
| <FONT color="green">1485</FONT> *<a name="line.1485"></a> |
| <FONT color="green">1486</FONT> * @param context The context node of this traversal.<a name="line.1486"></a> |
| <FONT color="green">1487</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1487"></a> |
| <FONT color="green">1488</FONT> *<a name="line.1488"></a> |
| <FONT color="green">1489</FONT> * @return the first node in the traversal.<a name="line.1489"></a> |
| <FONT color="green">1490</FONT> */<a name="line.1490"></a> |
| <FONT color="green">1491</FONT> public int first(int context, int expandedTypeID)<a name="line.1491"></a> |
| <FONT color="green">1492</FONT> {<a name="line.1492"></a> |
| <FONT color="green">1493</FONT> return (getExpandedTypeID(getDocumentRoot(context)) == expandedTypeID)<a name="line.1493"></a> |
| <FONT color="green">1494</FONT> ? context : next(context, context, expandedTypeID);<a name="line.1494"></a> |
| <FONT color="green">1495</FONT> }<a name="line.1495"></a> |
| <FONT color="green">1496</FONT> <a name="line.1496"></a> |
| <FONT color="green">1497</FONT> /**<a name="line.1497"></a> |
| <FONT color="green">1498</FONT> * Traverse to the next node after the current node.<a name="line.1498"></a> |
| <FONT color="green">1499</FONT> *<a name="line.1499"></a> |
| <FONT color="green">1500</FONT> * @param context The context node of this iteration.<a name="line.1500"></a> |
| <FONT color="green">1501</FONT> * @param current The current node of the iteration.<a name="line.1501"></a> |
| <FONT color="green">1502</FONT> *<a name="line.1502"></a> |
| <FONT color="green">1503</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1503"></a> |
| <FONT color="green">1504</FONT> */<a name="line.1504"></a> |
| <FONT color="green">1505</FONT> public int next(int context, int current)<a name="line.1505"></a> |
| <FONT color="green">1506</FONT> {<a name="line.1506"></a> |
| <FONT color="green">1507</FONT> // Compute in ID space<a name="line.1507"></a> |
| <FONT color="green">1508</FONT> int subtreeRootIdent = makeNodeIdentity(context);<a name="line.1508"></a> |
| <FONT color="green">1509</FONT> <a name="line.1509"></a> |
| <FONT color="green">1510</FONT> for (current = makeNodeIdentity(current) + 1; ; current++)<a name="line.1510"></a> |
| <FONT color="green">1511</FONT> {<a name="line.1511"></a> |
| <FONT color="green">1512</FONT> // Kluge test: Just make sure +1 yielded a real node<a name="line.1512"></a> |
| <FONT color="green">1513</FONT> int type = _type(current); // may call nextNode()<a name="line.1513"></a> |
| <FONT color="green">1514</FONT> if (type == NULL)<a name="line.1514"></a> |
| <FONT color="green">1515</FONT> return NULL;<a name="line.1515"></a> |
| <FONT color="green">1516</FONT> <a name="line.1516"></a> |
| <FONT color="green">1517</FONT> return makeNodeHandle(current); // make handle.<a name="line.1517"></a> |
| <FONT color="green">1518</FONT> }<a name="line.1518"></a> |
| <FONT color="green">1519</FONT> }<a name="line.1519"></a> |
| <FONT color="green">1520</FONT> <a name="line.1520"></a> |
| <FONT color="green">1521</FONT> /**<a name="line.1521"></a> |
| <FONT color="green">1522</FONT> * Traverse to the next node after the current node that is matched<a name="line.1522"></a> |
| <FONT color="green">1523</FONT> * by the expanded type ID.<a name="line.1523"></a> |
| <FONT color="green">1524</FONT> *<a name="line.1524"></a> |
| <FONT color="green">1525</FONT> * @param context The context node of this iteration.<a name="line.1525"></a> |
| <FONT color="green">1526</FONT> * @param current The current node of the iteration.<a name="line.1526"></a> |
| <FONT color="green">1527</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1527"></a> |
| <FONT color="green">1528</FONT> *<a name="line.1528"></a> |
| <FONT color="green">1529</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1529"></a> |
| <FONT color="green">1530</FONT> */<a name="line.1530"></a> |
| <FONT color="green">1531</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1531"></a> |
| <FONT color="green">1532</FONT> {<a name="line.1532"></a> |
| <FONT color="green">1533</FONT> // Compute in ID space<a name="line.1533"></a> |
| <FONT color="green">1534</FONT> int subtreeRootIdent = makeNodeIdentity(context);<a name="line.1534"></a> |
| <FONT color="green">1535</FONT> <a name="line.1535"></a> |
| <FONT color="green">1536</FONT> for (current = makeNodeIdentity(current) + 1; ; current++)<a name="line.1536"></a> |
| <FONT color="green">1537</FONT> {<a name="line.1537"></a> |
| <FONT color="green">1538</FONT> int exptype = _exptype(current); // may call nextNode()<a name="line.1538"></a> |
| <FONT color="green">1539</FONT> <a name="line.1539"></a> |
| <FONT color="green">1540</FONT> if (exptype == NULL)<a name="line.1540"></a> |
| <FONT color="green">1541</FONT> return NULL;<a name="line.1541"></a> |
| <FONT color="green">1542</FONT> <a name="line.1542"></a> |
| <FONT color="green">1543</FONT> if (exptype != expandedTypeID)<a name="line.1543"></a> |
| <FONT color="green">1544</FONT> continue;<a name="line.1544"></a> |
| <FONT color="green">1545</FONT> <a name="line.1545"></a> |
| <FONT color="green">1546</FONT> return makeNodeHandle(current); // make handle.<a name="line.1546"></a> |
| <FONT color="green">1547</FONT> }<a name="line.1547"></a> |
| <FONT color="green">1548</FONT> }<a name="line.1548"></a> |
| <FONT color="green">1549</FONT> }<a name="line.1549"></a> |
| <FONT color="green">1550</FONT> <a name="line.1550"></a> |
| <FONT color="green">1551</FONT> /**<a name="line.1551"></a> |
| <FONT color="green">1552</FONT> * Implements traversal of the Self axis.<a name="line.1552"></a> |
| <FONT color="green">1553</FONT> */<a name="line.1553"></a> |
| <FONT color="green">1554</FONT> private class RootTraverser extends AllFromRootTraverser<a name="line.1554"></a> |
| <FONT color="green">1555</FONT> {<a name="line.1555"></a> |
| <FONT color="green">1556</FONT> /**<a name="line.1556"></a> |
| <FONT color="green">1557</FONT> * Return the root if it matches the expanded type ID,<a name="line.1557"></a> |
| <FONT color="green">1558</FONT> * else return null (nothing found)<a name="line.1558"></a> |
| <FONT color="green">1559</FONT> *<a name="line.1559"></a> |
| <FONT color="green">1560</FONT> * @param context The context node of this traversal.<a name="line.1560"></a> |
| <FONT color="green">1561</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1561"></a> |
| <FONT color="green">1562</FONT> *<a name="line.1562"></a> |
| <FONT color="green">1563</FONT> * @return the first node in the traversal.<a name="line.1563"></a> |
| <FONT color="green">1564</FONT> */<a name="line.1564"></a> |
| <FONT color="green">1565</FONT> public int first(int context, int expandedTypeID)<a name="line.1565"></a> |
| <FONT color="green">1566</FONT> {<a name="line.1566"></a> |
| <FONT color="green">1567</FONT> int root=getDocumentRoot(context);<a name="line.1567"></a> |
| <FONT color="green">1568</FONT> return (getExpandedTypeID(root) == expandedTypeID)<a name="line.1568"></a> |
| <FONT color="green">1569</FONT> ? root : NULL;<a name="line.1569"></a> |
| <FONT color="green">1570</FONT> }<a name="line.1570"></a> |
| <FONT color="green">1571</FONT> <a name="line.1571"></a> |
| <FONT color="green">1572</FONT> /**<a name="line.1572"></a> |
| <FONT color="green">1573</FONT> * Traverse to the next node after the current node.<a name="line.1573"></a> |
| <FONT color="green">1574</FONT> *<a name="line.1574"></a> |
| <FONT color="green">1575</FONT> * @param context The context node of this iteration.<a name="line.1575"></a> |
| <FONT color="green">1576</FONT> * @param current The current node of the iteration.<a name="line.1576"></a> |
| <FONT color="green">1577</FONT> *<a name="line.1577"></a> |
| <FONT color="green">1578</FONT> * @return Always return NULL for this axis.<a name="line.1578"></a> |
| <FONT color="green">1579</FONT> */<a name="line.1579"></a> |
| <FONT color="green">1580</FONT> public int next(int context, int current)<a name="line.1580"></a> |
| <FONT color="green">1581</FONT> {<a name="line.1581"></a> |
| <FONT color="green">1582</FONT> return NULL;<a name="line.1582"></a> |
| <FONT color="green">1583</FONT> }<a name="line.1583"></a> |
| <FONT color="green">1584</FONT> <a name="line.1584"></a> |
| <FONT color="green">1585</FONT> /**<a name="line.1585"></a> |
| <FONT color="green">1586</FONT> * Traverse to the next node after the current node that is matched<a name="line.1586"></a> |
| <FONT color="green">1587</FONT> * by the expanded type ID.<a name="line.1587"></a> |
| <FONT color="green">1588</FONT> *<a name="line.1588"></a> |
| <FONT color="green">1589</FONT> * @param context The context node of this iteration.<a name="line.1589"></a> |
| <FONT color="green">1590</FONT> * @param current The current node of the iteration.<a name="line.1590"></a> |
| <FONT color="green">1591</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1591"></a> |
| <FONT color="green">1592</FONT> *<a name="line.1592"></a> |
| <FONT color="green">1593</FONT> * @return the next node in the iteration, or DTM.NULL.<a name="line.1593"></a> |
| <FONT color="green">1594</FONT> */<a name="line.1594"></a> |
| <FONT color="green">1595</FONT> public int next(int context, int current, int expandedTypeID)<a name="line.1595"></a> |
| <FONT color="green">1596</FONT> {<a name="line.1596"></a> |
| <FONT color="green">1597</FONT> return NULL;<a name="line.1597"></a> |
| <FONT color="green">1598</FONT> }<a name="line.1598"></a> |
| <FONT color="green">1599</FONT> }<a name="line.1599"></a> |
| <FONT color="green">1600</FONT> <a name="line.1600"></a> |
| <FONT color="green">1601</FONT> /**<a name="line.1601"></a> |
| <FONT color="green">1602</FONT> * A non-xpath axis, returns all nodes that aren't namespaces or attributes,<a name="line.1602"></a> |
| <FONT color="green">1603</FONT> * from and including the root.<a name="line.1603"></a> |
| <FONT color="green">1604</FONT> */<a name="line.1604"></a> |
| <FONT color="green">1605</FONT> private class DescendantOrSelfFromRootTraverser extends DescendantTraverser<a name="line.1605"></a> |
| <FONT color="green">1606</FONT> {<a name="line.1606"></a> |
| <FONT color="green">1607</FONT> <a name="line.1607"></a> |
| <FONT color="green">1608</FONT> /**<a name="line.1608"></a> |
| <FONT color="green">1609</FONT> * Get the first potential identity that can be returned, which is the axis <a name="line.1609"></a> |
| <FONT color="green">1610</FONT> * root context in this case.<a name="line.1610"></a> |
| <FONT color="green">1611</FONT> *<a name="line.1611"></a> |
| <FONT color="green">1612</FONT> * @param identity The node identity of the root context of the traversal.<a name="line.1612"></a> |
| <FONT color="green">1613</FONT> *<a name="line.1613"></a> |
| <FONT color="green">1614</FONT> * @return The identity argument.<a name="line.1614"></a> |
| <FONT color="green">1615</FONT> */<a name="line.1615"></a> |
| <FONT color="green">1616</FONT> protected int getFirstPotential(int identity)<a name="line.1616"></a> |
| <FONT color="green">1617</FONT> {<a name="line.1617"></a> |
| <FONT color="green">1618</FONT> return identity;<a name="line.1618"></a> |
| <FONT color="green">1619</FONT> }<a name="line.1619"></a> |
| <FONT color="green">1620</FONT> <a name="line.1620"></a> |
| <FONT color="green">1621</FONT> /**<a name="line.1621"></a> |
| <FONT color="green">1622</FONT> * Get the first potential identity that can be returned.<a name="line.1622"></a> |
| <FONT color="green">1623</FONT> * @param handle handle to the root context.<a name="line.1623"></a> |
| <FONT color="green">1624</FONT> * @return identity of the root of the subtree.<a name="line.1624"></a> |
| <FONT color="green">1625</FONT> */<a name="line.1625"></a> |
| <FONT color="green">1626</FONT> protected int getSubtreeRoot(int handle)<a name="line.1626"></a> |
| <FONT color="green">1627</FONT> {<a name="line.1627"></a> |
| <FONT color="green">1628</FONT> // %REVIEW% Shouldn't this always be 0?<a name="line.1628"></a> |
| <FONT color="green">1629</FONT> return makeNodeIdentity(getDocument());<a name="line.1629"></a> |
| <FONT color="green">1630</FONT> }<a name="line.1630"></a> |
| <FONT color="green">1631</FONT> <a name="line.1631"></a> |
| <FONT color="green">1632</FONT> /**<a name="line.1632"></a> |
| <FONT color="green">1633</FONT> * Return the root.<a name="line.1633"></a> |
| <FONT color="green">1634</FONT> *<a name="line.1634"></a> |
| <FONT color="green">1635</FONT> * @param context The context node of this traversal.<a name="line.1635"></a> |
| <FONT color="green">1636</FONT> *<a name="line.1636"></a> |
| <FONT color="green">1637</FONT> * @return the first node in the traversal.<a name="line.1637"></a> |
| <FONT color="green">1638</FONT> */<a name="line.1638"></a> |
| <FONT color="green">1639</FONT> public int first(int context)<a name="line.1639"></a> |
| <FONT color="green">1640</FONT> {<a name="line.1640"></a> |
| <FONT color="green">1641</FONT> return getDocumentRoot(context);<a name="line.1641"></a> |
| <FONT color="green">1642</FONT> }<a name="line.1642"></a> |
| <FONT color="green">1643</FONT> <a name="line.1643"></a> |
| <FONT color="green">1644</FONT> /**<a name="line.1644"></a> |
| <FONT color="green">1645</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.1645"></a> |
| <FONT color="green">1646</FONT> * returned or the iteration will go into an infinate loop. So to traverse<a name="line.1646"></a> |
| <FONT color="green">1647</FONT> * an axis, the first function must be used to get the first node.<a name="line.1647"></a> |
| <FONT color="green">1648</FONT> *<a name="line.1648"></a> |
| <FONT color="green">1649</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.1649"></a> |
| <FONT color="green">1650</FONT> * the self node. <\p><a name="line.1650"></a> |
| <FONT color="green">1651</FONT> *<a name="line.1651"></a> |
| <FONT color="green">1652</FONT> * @param context The context node of this traversal. This is the point<a name="line.1652"></a> |
| <FONT color="green">1653</FONT> * of origin for the traversal -- its "root node" or starting point.<a name="line.1653"></a> |
| <FONT color="green">1654</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1654"></a> |
| <FONT color="green">1655</FONT> *<a name="line.1655"></a> |
| <FONT color="green">1656</FONT> * @return the first node in the traversal.<a name="line.1656"></a> |
| <FONT color="green">1657</FONT> */<a name="line.1657"></a> |
| <FONT color="green">1658</FONT> public int first(int context, int expandedTypeID)<a name="line.1658"></a> |
| <FONT color="green">1659</FONT> {<a name="line.1659"></a> |
| <FONT color="green">1660</FONT> if (isIndexed(expandedTypeID))<a name="line.1660"></a> |
| <FONT color="green">1661</FONT> {<a name="line.1661"></a> |
| <FONT color="green">1662</FONT> int identity = 0;<a name="line.1662"></a> |
| <FONT color="green">1663</FONT> int firstPotential = getFirstPotential(identity);<a name="line.1663"></a> |
| <FONT color="green">1664</FONT> <a name="line.1664"></a> |
| <FONT color="green">1665</FONT> return makeNodeHandle(getNextIndexed(identity, firstPotential, expandedTypeID));<a name="line.1665"></a> |
| <FONT color="green">1666</FONT> }<a name="line.1666"></a> |
| <FONT color="green">1667</FONT> <a name="line.1667"></a> |
| <FONT color="green">1668</FONT> int root = first(context); <a name="line.1668"></a> |
| <FONT color="green">1669</FONT> return next(root, root, expandedTypeID);<a name="line.1669"></a> |
| <FONT color="green">1670</FONT> }<a name="line.1670"></a> |
| <FONT color="green">1671</FONT> }<a name="line.1671"></a> |
| <FONT color="green">1672</FONT> <a name="line.1672"></a> |
| <FONT color="green">1673</FONT> /**<a name="line.1673"></a> |
| <FONT color="green">1674</FONT> * A non-xpath axis, returns all nodes that aren't namespaces or attributes,<a name="line.1674"></a> |
| <FONT color="green">1675</FONT> * from but not including the root.<a name="line.1675"></a> |
| <FONT color="green">1676</FONT> */<a name="line.1676"></a> |
| <FONT color="green">1677</FONT> private class DescendantFromRootTraverser extends DescendantTraverser<a name="line.1677"></a> |
| <FONT color="green">1678</FONT> {<a name="line.1678"></a> |
| <FONT color="green">1679</FONT> <a name="line.1679"></a> |
| <FONT color="green">1680</FONT> /**<a name="line.1680"></a> |
| <FONT color="green">1681</FONT> * Get the first potential identity that can be returned, which is the axis <a name="line.1681"></a> |
| <FONT color="green">1682</FONT> * root context in this case.<a name="line.1682"></a> |
| <FONT color="green">1683</FONT> *<a name="line.1683"></a> |
| <FONT color="green">1684</FONT> * @param identity The node identity of the root context of the traversal.<a name="line.1684"></a> |
| <FONT color="green">1685</FONT> *<a name="line.1685"></a> |
| <FONT color="green">1686</FONT> * @return The identity argument.<a name="line.1686"></a> |
| <FONT color="green">1687</FONT> */<a name="line.1687"></a> |
| <FONT color="green">1688</FONT> protected int getFirstPotential(int identity)<a name="line.1688"></a> |
| <FONT color="green">1689</FONT> {<a name="line.1689"></a> |
| <FONT color="green">1690</FONT> return _firstch(0);<a name="line.1690"></a> |
| <FONT color="green">1691</FONT> }<a name="line.1691"></a> |
| <FONT color="green">1692</FONT> <a name="line.1692"></a> |
| <FONT color="green">1693</FONT> /**<a name="line.1693"></a> |
| <FONT color="green">1694</FONT> * Get the first potential identity that can be returned.<a name="line.1694"></a> |
| <FONT color="green">1695</FONT> * @param handle handle to the root context.<a name="line.1695"></a> |
| <FONT color="green">1696</FONT> * @return identity of the root of the subtree.<a name="line.1696"></a> |
| <FONT color="green">1697</FONT> */<a name="line.1697"></a> |
| <FONT color="green">1698</FONT> protected int getSubtreeRoot(int handle)<a name="line.1698"></a> |
| <FONT color="green">1699</FONT> {<a name="line.1699"></a> |
| <FONT color="green">1700</FONT> return 0;<a name="line.1700"></a> |
| <FONT color="green">1701</FONT> }<a name="line.1701"></a> |
| <FONT color="green">1702</FONT> <a name="line.1702"></a> |
| <FONT color="green">1703</FONT> /**<a name="line.1703"></a> |
| <FONT color="green">1704</FONT> * Return the root.<a name="line.1704"></a> |
| <FONT color="green">1705</FONT> *<a name="line.1705"></a> |
| <FONT color="green">1706</FONT> * @param context The context node of this traversal.<a name="line.1706"></a> |
| <FONT color="green">1707</FONT> *<a name="line.1707"></a> |
| <FONT color="green">1708</FONT> * @return the first node in the traversal.<a name="line.1708"></a> |
| <FONT color="green">1709</FONT> */<a name="line.1709"></a> |
| <FONT color="green">1710</FONT> public int first(int context)<a name="line.1710"></a> |
| <FONT color="green">1711</FONT> {<a name="line.1711"></a> |
| <FONT color="green">1712</FONT> return makeNodeHandle(_firstch(0));<a name="line.1712"></a> |
| <FONT color="green">1713</FONT> }<a name="line.1713"></a> |
| <FONT color="green">1714</FONT> <a name="line.1714"></a> |
| <FONT color="green">1715</FONT> /**<a name="line.1715"></a> |
| <FONT color="green">1716</FONT> * By the nature of the stateless traversal, the context node can not be<a name="line.1716"></a> |
| <FONT color="green">1717</FONT> * returned or the iteration will go into an infinate loop. So to traverse<a name="line.1717"></a> |
| <FONT color="green">1718</FONT> * an axis, the first function must be used to get the first node.<a name="line.1718"></a> |
| <FONT color="green">1719</FONT> *<a name="line.1719"></a> |
| <FONT color="green">1720</FONT> * <p>This method needs to be overloaded only by those axis that process<a name="line.1720"></a> |
| <FONT color="green">1721</FONT> * the self node. <\p><a name="line.1721"></a> |
| <FONT color="green">1722</FONT> *<a name="line.1722"></a> |
| <FONT color="green">1723</FONT> * @param context The context node of this traversal. This is the point<a name="line.1723"></a> |
| <FONT color="green">1724</FONT> * of origin for the traversal -- its "root node" or starting point.<a name="line.1724"></a> |
| <FONT color="green">1725</FONT> * @param expandedTypeID The expanded type ID that must match.<a name="line.1725"></a> |
| <FONT color="green">1726</FONT> *<a name="line.1726"></a> |
| <FONT color="green">1727</FONT> * @return the first node in the traversal.<a name="line.1727"></a> |
| <FONT color="green">1728</FONT> */<a name="line.1728"></a> |
| <FONT color="green">1729</FONT> public int first(int context, int expandedTypeID)<a name="line.1729"></a> |
| <FONT color="green">1730</FONT> {<a name="line.1730"></a> |
| <FONT color="green">1731</FONT> if (isIndexed(expandedTypeID))<a name="line.1731"></a> |
| <FONT color="green">1732</FONT> {<a name="line.1732"></a> |
| <FONT color="green">1733</FONT> int identity = 0; <a name="line.1733"></a> |
| <FONT color="green">1734</FONT> int firstPotential = getFirstPotential(identity);<a name="line.1734"></a> |
| <FONT color="green">1735</FONT> <a name="line.1735"></a> |
| <FONT color="green">1736</FONT> return makeNodeHandle(getNextIndexed(identity, firstPotential, expandedTypeID));<a name="line.1736"></a> |
| <FONT color="green">1737</FONT> }<a name="line.1737"></a> |
| <FONT color="green">1738</FONT> <a name="line.1738"></a> |
| <FONT color="green">1739</FONT> int root = getDocumentRoot(context); <a name="line.1739"></a> |
| <FONT color="green">1740</FONT> return next(root, root, expandedTypeID);<a name="line.1740"></a> |
| <FONT color="green">1741</FONT> }<a name="line.1741"></a> |
| <FONT color="green">1742</FONT> <a name="line.1742"></a> |
| <FONT color="green">1743</FONT> }<a name="line.1743"></a> |
| <FONT color="green">1744</FONT> <a name="line.1744"></a> |
| <FONT color="green">1745</FONT> }<a name="line.1745"></a> |
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| </PRE> |
| </BODY> |
| </HTML> |
