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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: NodeSetDTM.java 468655 2006-10-28 07:12:06Z minchau $<a name="line.19"></a>
<FONT color="green">020</FONT> */<a name="line.20"></a>
<FONT color="green">021</FONT> package org.apache.xpath;<a name="line.21"></a>
<FONT color="green">022</FONT> <a name="line.22"></a>
<FONT color="green">023</FONT> import org.apache.xalan.res.XSLMessages;<a name="line.23"></a>
<FONT color="green">024</FONT> import org.apache.xml.dtm.DTM;<a name="line.24"></a>
<FONT color="green">025</FONT> import org.apache.xml.dtm.DTMFilter;<a name="line.25"></a>
<FONT color="green">026</FONT> import org.apache.xml.dtm.DTMIterator;<a name="line.26"></a>
<FONT color="green">027</FONT> import org.apache.xml.dtm.DTMManager;<a name="line.27"></a>
<FONT color="green">028</FONT> import org.apache.xml.utils.NodeVector;<a name="line.28"></a>
<FONT color="green">029</FONT> import org.apache.xpath.res.XPATHErrorResources;<a name="line.29"></a>
<FONT color="green">030</FONT> <a name="line.30"></a>
<FONT color="green">031</FONT> import org.w3c.dom.Node;<a name="line.31"></a>
<FONT color="green">032</FONT> import org.w3c.dom.NodeList;<a name="line.32"></a>
<FONT color="green">033</FONT> import org.w3c.dom.traversal.NodeIterator;<a name="line.33"></a>
<FONT color="green">034</FONT> <a name="line.34"></a>
<FONT color="green">035</FONT> <a name="line.35"></a>
<FONT color="green">036</FONT> /**<a name="line.36"></a>
<FONT color="green">037</FONT> * &lt;p&gt;The NodeSetDTM class can act as either a NodeVector,<a name="line.37"></a>
<FONT color="green">038</FONT> * NodeList, or NodeIterator. However, in order for it to<a name="line.38"></a>
<FONT color="green">039</FONT> * act as a NodeVector or NodeList, it's required that<a name="line.39"></a>
<FONT color="green">040</FONT> * setShouldCacheNodes(true) be called before the first<a name="line.40"></a>
<FONT color="green">041</FONT> * nextNode() is called, in order that nodes can be added<a name="line.41"></a>
<FONT color="green">042</FONT> * as they are fetched. Derived classes that implement iterators<a name="line.42"></a>
<FONT color="green">043</FONT> * must override runTo(int index), in order that they may<a name="line.43"></a>
<FONT color="green">044</FONT> * run the iteration to the given index. &lt;/p&gt;<a name="line.44"></a>
<FONT color="green">045</FONT> * <a name="line.45"></a>
<FONT color="green">046</FONT> * &lt;p&gt;Note that we directly implement the DOM's NodeIterator<a name="line.46"></a>
<FONT color="green">047</FONT> * interface. We do not emulate all the behavior of the<a name="line.47"></a>
<FONT color="green">048</FONT> * standard NodeIterator. In particular, we do not guarantee<a name="line.48"></a>
<FONT color="green">049</FONT> * to present a "live view" of the document ... but in XSLT,<a name="line.49"></a>
<FONT color="green">050</FONT> * the source document should never be mutated, so this should<a name="line.50"></a>
<FONT color="green">051</FONT> * never be an issue.&lt;/p&gt;<a name="line.51"></a>
<FONT color="green">052</FONT> * <a name="line.52"></a>
<FONT color="green">053</FONT> * &lt;p&gt;Thought: Should NodeSetDTM really implement NodeList and NodeIterator,<a name="line.53"></a>
<FONT color="green">054</FONT> * or should there be specific subclasses of it which do so? The<a name="line.54"></a>
<FONT color="green">055</FONT> * advantage of doing it all here is that all NodeSetDTMs will respond<a name="line.55"></a>
<FONT color="green">056</FONT> * to the same calls; the disadvantage is that some of them may return<a name="line.56"></a>
<FONT color="green">057</FONT> * less-than-enlightening results when you do so.&lt;/p&gt;<a name="line.57"></a>
<FONT color="green">058</FONT> * @xsl.usage advanced<a name="line.58"></a>
<FONT color="green">059</FONT> */<a name="line.59"></a>
<FONT color="green">060</FONT> public class NodeSetDTM extends NodeVector<a name="line.60"></a>
<FONT color="green">061</FONT> implements /* NodeList, NodeIterator, */ DTMIterator, <a name="line.61"></a>
<FONT color="green">062</FONT> Cloneable<a name="line.62"></a>
<FONT color="green">063</FONT> {<a name="line.63"></a>
<FONT color="green">064</FONT> static final long serialVersionUID = 7686480133331317070L;<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> * Create an empty nodelist.<a name="line.67"></a>
<FONT color="green">068</FONT> */<a name="line.68"></a>
<FONT color="green">069</FONT> public NodeSetDTM(DTMManager dtmManager)<a name="line.69"></a>
<FONT color="green">070</FONT> {<a name="line.70"></a>
<FONT color="green">071</FONT> super();<a name="line.71"></a>
<FONT color="green">072</FONT> m_manager = dtmManager;<a name="line.72"></a>
<FONT color="green">073</FONT> }<a name="line.73"></a>
<FONT color="green">074</FONT> <a name="line.74"></a>
<FONT color="green">075</FONT> /**<a name="line.75"></a>
<FONT color="green">076</FONT> * Create an empty, using the given block size.<a name="line.76"></a>
<FONT color="green">077</FONT> *<a name="line.77"></a>
<FONT color="green">078</FONT> * @param blocksize Size of blocks to allocate <a name="line.78"></a>
<FONT color="green">079</FONT> * @param dummy pass zero for right now...<a name="line.79"></a>
<FONT color="green">080</FONT> */<a name="line.80"></a>
<FONT color="green">081</FONT> public NodeSetDTM(int blocksize, int dummy, DTMManager dtmManager)<a name="line.81"></a>
<FONT color="green">082</FONT> {<a name="line.82"></a>
<FONT color="green">083</FONT> super(blocksize);<a name="line.83"></a>
<FONT color="green">084</FONT> m_manager = dtmManager;<a name="line.84"></a>
<FONT color="green">085</FONT> }<a name="line.85"></a>
<FONT color="green">086</FONT> <a name="line.86"></a>
<FONT color="green">087</FONT> // %TBD%<a name="line.87"></a>
<FONT color="green">088</FONT> // /**<a name="line.88"></a>
<FONT color="green">089</FONT> // * Create a NodeSetDTM, and copy the members of the<a name="line.89"></a>
<FONT color="green">090</FONT> // * given nodelist into it.<a name="line.90"></a>
<FONT color="green">091</FONT> // *<a name="line.91"></a>
<FONT color="green">092</FONT> // * @param nodelist List of Nodes to be made members of the new set.<a name="line.92"></a>
<FONT color="green">093</FONT> // */<a name="line.93"></a>
<FONT color="green">094</FONT> // public NodeSetDTM(NodeList nodelist)<a name="line.94"></a>
<FONT color="green">095</FONT> // {<a name="line.95"></a>
<FONT color="green">096</FONT> //<a name="line.96"></a>
<FONT color="green">097</FONT> // super();<a name="line.97"></a>
<FONT color="green">098</FONT> //<a name="line.98"></a>
<FONT color="green">099</FONT> // addNodes(nodelist);<a name="line.99"></a>
<FONT color="green">100</FONT> // }<a name="line.100"></a>
<FONT color="green">101</FONT> <a name="line.101"></a>
<FONT color="green">102</FONT> /**<a name="line.102"></a>
<FONT color="green">103</FONT> * Create a NodeSetDTM, and copy the members of the<a name="line.103"></a>
<FONT color="green">104</FONT> * given NodeSetDTM into it.<a name="line.104"></a>
<FONT color="green">105</FONT> *<a name="line.105"></a>
<FONT color="green">106</FONT> * @param nodelist Set of Nodes to be made members of the new set.<a name="line.106"></a>
<FONT color="green">107</FONT> */<a name="line.107"></a>
<FONT color="green">108</FONT> public NodeSetDTM(NodeSetDTM nodelist)<a name="line.108"></a>
<FONT color="green">109</FONT> {<a name="line.109"></a>
<FONT color="green">110</FONT> <a name="line.110"></a>
<FONT color="green">111</FONT> super();<a name="line.111"></a>
<FONT color="green">112</FONT> m_manager = nodelist.getDTMManager();<a name="line.112"></a>
<FONT color="green">113</FONT> m_root = nodelist.getRoot();<a name="line.113"></a>
<FONT color="green">114</FONT> <a name="line.114"></a>
<FONT color="green">115</FONT> addNodes((DTMIterator) nodelist);<a name="line.115"></a>
<FONT color="green">116</FONT> }<a name="line.116"></a>
<FONT color="green">117</FONT> <a name="line.117"></a>
<FONT color="green">118</FONT> /**<a name="line.118"></a>
<FONT color="green">119</FONT> * Create a NodeSetDTM, and copy the members of the<a name="line.119"></a>
<FONT color="green">120</FONT> * given DTMIterator into it.<a name="line.120"></a>
<FONT color="green">121</FONT> *<a name="line.121"></a>
<FONT color="green">122</FONT> * @param ni Iterator which yields Nodes to be made members of the new set.<a name="line.122"></a>
<FONT color="green">123</FONT> */<a name="line.123"></a>
<FONT color="green">124</FONT> public NodeSetDTM(DTMIterator ni)<a name="line.124"></a>
<FONT color="green">125</FONT> {<a name="line.125"></a>
<FONT color="green">126</FONT> <a name="line.126"></a>
<FONT color="green">127</FONT> super();<a name="line.127"></a>
<FONT color="green">128</FONT> <a name="line.128"></a>
<FONT color="green">129</FONT> m_manager = ni.getDTMManager();<a name="line.129"></a>
<FONT color="green">130</FONT> m_root = ni.getRoot();<a name="line.130"></a>
<FONT color="green">131</FONT> addNodes(ni);<a name="line.131"></a>
<FONT color="green">132</FONT> }<a name="line.132"></a>
<FONT color="green">133</FONT> <a name="line.133"></a>
<FONT color="green">134</FONT> /**<a name="line.134"></a>
<FONT color="green">135</FONT> * Create a NodeSetDTM, and copy the members of the<a name="line.135"></a>
<FONT color="green">136</FONT> * given DTMIterator into it.<a name="line.136"></a>
<FONT color="green">137</FONT> *<a name="line.137"></a>
<FONT color="green">138</FONT> * @param iterator Iterator which yields Nodes to be made members of the new set.<a name="line.138"></a>
<FONT color="green">139</FONT> */<a name="line.139"></a>
<FONT color="green">140</FONT> public NodeSetDTM(NodeIterator iterator, XPathContext xctxt)<a name="line.140"></a>
<FONT color="green">141</FONT> {<a name="line.141"></a>
<FONT color="green">142</FONT> <a name="line.142"></a>
<FONT color="green">143</FONT> super();<a name="line.143"></a>
<FONT color="green">144</FONT> <a name="line.144"></a>
<FONT color="green">145</FONT> Node node;<a name="line.145"></a>
<FONT color="green">146</FONT> m_manager = xctxt.getDTMManager();<a name="line.146"></a>
<FONT color="green">147</FONT> <a name="line.147"></a>
<FONT color="green">148</FONT> while (null != (node = iterator.nextNode()))<a name="line.148"></a>
<FONT color="green">149</FONT> {<a name="line.149"></a>
<FONT color="green">150</FONT> int handle = xctxt.getDTMHandleFromNode(node);<a name="line.150"></a>
<FONT color="green">151</FONT> addNodeInDocOrder(handle, xctxt);<a name="line.151"></a>
<FONT color="green">152</FONT> }<a name="line.152"></a>
<FONT color="green">153</FONT> }<a name="line.153"></a>
<FONT color="green">154</FONT> <a name="line.154"></a>
<FONT color="green">155</FONT> /**<a name="line.155"></a>
<FONT color="green">156</FONT> * Create a NodeSetDTM, and copy the members of the<a name="line.156"></a>
<FONT color="green">157</FONT> * given DTMIterator into it.<a name="line.157"></a>
<FONT color="green">158</FONT> *<a name="line.158"></a>
<FONT color="green">159</FONT> */<a name="line.159"></a>
<FONT color="green">160</FONT> public NodeSetDTM(NodeList nodeList, XPathContext xctxt)<a name="line.160"></a>
<FONT color="green">161</FONT> {<a name="line.161"></a>
<FONT color="green">162</FONT> <a name="line.162"></a>
<FONT color="green">163</FONT> super();<a name="line.163"></a>
<FONT color="green">164</FONT> <a name="line.164"></a>
<FONT color="green">165</FONT> m_manager = xctxt.getDTMManager();<a name="line.165"></a>
<FONT color="green">166</FONT> <a name="line.166"></a>
<FONT color="green">167</FONT> int n = nodeList.getLength();<a name="line.167"></a>
<FONT color="green">168</FONT> for (int i = 0; i &lt; n; i++) <a name="line.168"></a>
<FONT color="green">169</FONT> {<a name="line.169"></a>
<FONT color="green">170</FONT> Node node = nodeList.item(i);<a name="line.170"></a>
<FONT color="green">171</FONT> int handle = xctxt.getDTMHandleFromNode(node);<a name="line.171"></a>
<FONT color="green">172</FONT> // Do not reorder or strip duplicate nodes from the given DOM nodelist<a name="line.172"></a>
<FONT color="green">173</FONT> addNode(handle); // addNodeInDocOrder(handle, xctxt); <a name="line.173"></a>
<FONT color="green">174</FONT> } <a name="line.174"></a>
<FONT color="green">175</FONT> }<a name="line.175"></a>
<FONT color="green">176</FONT> <a name="line.176"></a>
<FONT color="green">177</FONT> <a name="line.177"></a>
<FONT color="green">178</FONT> /**<a name="line.178"></a>
<FONT color="green">179</FONT> * Create a NodeSetDTM which contains the given Node.<a name="line.179"></a>
<FONT color="green">180</FONT> *<a name="line.180"></a>
<FONT color="green">181</FONT> * @param node Single node to be added to the new set.<a name="line.181"></a>
<FONT color="green">182</FONT> */<a name="line.182"></a>
<FONT color="green">183</FONT> public NodeSetDTM(int node, DTMManager dtmManager)<a name="line.183"></a>
<FONT color="green">184</FONT> {<a name="line.184"></a>
<FONT color="green">185</FONT> <a name="line.185"></a>
<FONT color="green">186</FONT> super();<a name="line.186"></a>
<FONT color="green">187</FONT> m_manager = dtmManager;<a name="line.187"></a>
<FONT color="green">188</FONT> <a name="line.188"></a>
<FONT color="green">189</FONT> addNode(node);<a name="line.189"></a>
<FONT color="green">190</FONT> }<a name="line.190"></a>
<FONT color="green">191</FONT> <a name="line.191"></a>
<FONT color="green">192</FONT> /**<a name="line.192"></a>
<FONT color="green">193</FONT> * Set the environment in which this iterator operates, which should provide:<a name="line.193"></a>
<FONT color="green">194</FONT> * a node (the context node... same value as "root" defined below) <a name="line.194"></a>
<FONT color="green">195</FONT> * a pair of non-zero positive integers (the context position and the context size) <a name="line.195"></a>
<FONT color="green">196</FONT> * a set of variable bindings <a name="line.196"></a>
<FONT color="green">197</FONT> * a function library <a name="line.197"></a>
<FONT color="green">198</FONT> * the set of namespace declarations in scope for the expression.<a name="line.198"></a>
<FONT color="green">199</FONT> * <a name="line.199"></a>
<FONT color="green">200</FONT> * &lt;p&gt;At this time the exact implementation of this environment is application <a name="line.200"></a>
<FONT color="green">201</FONT> * dependent. Probably a proper interface will be created fairly soon.&lt;/p&gt;<a name="line.201"></a>
<FONT color="green">202</FONT> * <a name="line.202"></a>
<FONT color="green">203</FONT> * @param environment The environment object.<a name="line.203"></a>
<FONT color="green">204</FONT> */<a name="line.204"></a>
<FONT color="green">205</FONT> public void setEnvironment(Object environment)<a name="line.205"></a>
<FONT color="green">206</FONT> {<a name="line.206"></a>
<FONT color="green">207</FONT> // no-op<a name="line.207"></a>
<FONT color="green">208</FONT> }<a name="line.208"></a>
<FONT color="green">209</FONT> <a name="line.209"></a>
<FONT color="green">210</FONT> <a name="line.210"></a>
<FONT color="green">211</FONT> /**<a name="line.211"></a>
<FONT color="green">212</FONT> * @return The root node of the Iterator, as specified when it was created.<a name="line.212"></a>
<FONT color="green">213</FONT> * For non-Iterator NodeSetDTMs, this will be null.<a name="line.213"></a>
<FONT color="green">214</FONT> */<a name="line.214"></a>
<FONT color="green">215</FONT> public int getRoot()<a name="line.215"></a>
<FONT color="green">216</FONT> {<a name="line.216"></a>
<FONT color="green">217</FONT> if(DTM.NULL == m_root)<a name="line.217"></a>
<FONT color="green">218</FONT> {<a name="line.218"></a>
<FONT color="green">219</FONT> if(size() &gt; 0)<a name="line.219"></a>
<FONT color="green">220</FONT> return item(0);<a name="line.220"></a>
<FONT color="green">221</FONT> else<a name="line.221"></a>
<FONT color="green">222</FONT> return DTM.NULL;<a name="line.222"></a>
<FONT color="green">223</FONT> }<a name="line.223"></a>
<FONT color="green">224</FONT> else<a name="line.224"></a>
<FONT color="green">225</FONT> return m_root;<a name="line.225"></a>
<FONT color="green">226</FONT> }<a name="line.226"></a>
<FONT color="green">227</FONT> <a name="line.227"></a>
<FONT color="green">228</FONT> /**<a name="line.228"></a>
<FONT color="green">229</FONT> * Initialize the context values for this expression<a name="line.229"></a>
<FONT color="green">230</FONT> * after it is cloned.<a name="line.230"></a>
<FONT color="green">231</FONT> *<a name="line.231"></a>
<FONT color="green">232</FONT> * @param context The XPath runtime context for this<a name="line.232"></a>
<FONT color="green">233</FONT> * transformation.<a name="line.233"></a>
<FONT color="green">234</FONT> */<a name="line.234"></a>
<FONT color="green">235</FONT> public void setRoot(int context, Object environment)<a name="line.235"></a>
<FONT color="green">236</FONT> {<a name="line.236"></a>
<FONT color="green">237</FONT> // no-op, I guess... (-sb)<a name="line.237"></a>
<FONT color="green">238</FONT> }<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> * Clone this NodeSetDTM.<a name="line.241"></a>
<FONT color="green">242</FONT> * At this time, we only expect this to be used with LocPathIterators;<a name="line.242"></a>
<FONT color="green">243</FONT> * it may not work with other kinds of NodeSetDTMs.<a name="line.243"></a>
<FONT color="green">244</FONT> *<a name="line.244"></a>
<FONT color="green">245</FONT> * @return a new NodeSetDTM of the same type, having the same state...<a name="line.245"></a>
<FONT color="green">246</FONT> * though unless overridden in the subclasses, it may not copy all<a name="line.246"></a>
<FONT color="green">247</FONT> * the state information.<a name="line.247"></a>
<FONT color="green">248</FONT> *<a name="line.248"></a>
<FONT color="green">249</FONT> * @throws CloneNotSupportedException if this subclass of NodeSetDTM<a name="line.249"></a>
<FONT color="green">250</FONT> * does not support the clone() operation.<a name="line.250"></a>
<FONT color="green">251</FONT> */<a name="line.251"></a>
<FONT color="green">252</FONT> public Object clone() throws CloneNotSupportedException<a name="line.252"></a>
<FONT color="green">253</FONT> {<a name="line.253"></a>
<FONT color="green">254</FONT> <a name="line.254"></a>
<FONT color="green">255</FONT> NodeSetDTM clone = (NodeSetDTM) super.clone();<a name="line.255"></a>
<FONT color="green">256</FONT> <a name="line.256"></a>
<FONT color="green">257</FONT> return clone;<a name="line.257"></a>
<FONT color="green">258</FONT> }<a name="line.258"></a>
<FONT color="green">259</FONT> <a name="line.259"></a>
<FONT color="green">260</FONT> /**<a name="line.260"></a>
<FONT color="green">261</FONT> * Get a cloned Iterator, and reset its state to the beginning of the<a name="line.261"></a>
<FONT color="green">262</FONT> * iteration.<a name="line.262"></a>
<FONT color="green">263</FONT> *<a name="line.263"></a>
<FONT color="green">264</FONT> * @return a new NodeSetDTM of the same type, having the same state...<a name="line.264"></a>
<FONT color="green">265</FONT> * except that the reset() operation has been called.<a name="line.265"></a>
<FONT color="green">266</FONT> *<a name="line.266"></a>
<FONT color="green">267</FONT> * @throws CloneNotSupportedException if this subclass of NodeSetDTM<a name="line.267"></a>
<FONT color="green">268</FONT> * does not support the clone() operation.<a name="line.268"></a>
<FONT color="green">269</FONT> */<a name="line.269"></a>
<FONT color="green">270</FONT> public DTMIterator cloneWithReset() throws CloneNotSupportedException<a name="line.270"></a>
<FONT color="green">271</FONT> {<a name="line.271"></a>
<FONT color="green">272</FONT> <a name="line.272"></a>
<FONT color="green">273</FONT> NodeSetDTM clone = (NodeSetDTM) clone();<a name="line.273"></a>
<FONT color="green">274</FONT> <a name="line.274"></a>
<FONT color="green">275</FONT> clone.reset();<a name="line.275"></a>
<FONT color="green">276</FONT> <a name="line.276"></a>
<FONT color="green">277</FONT> return clone;<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> * Reset the iterator. May have no effect on non-iterator Nodesets.<a name="line.281"></a>
<FONT color="green">282</FONT> */<a name="line.282"></a>
<FONT color="green">283</FONT> public void reset()<a name="line.283"></a>
<FONT color="green">284</FONT> {<a name="line.284"></a>
<FONT color="green">285</FONT> m_next = 0;<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> /**<a name="line.288"></a>
<FONT color="green">289</FONT> * This attribute determines which node types are presented via the<a name="line.289"></a>
<FONT color="green">290</FONT> * iterator. The available set of constants is defined in the<a name="line.290"></a>
<FONT color="green">291</FONT> * &lt;code&gt;DTMFilter&lt;/code&gt; interface. For NodeSetDTMs, the mask has been<a name="line.291"></a>
<FONT color="green">292</FONT> * hardcoded to show all nodes except EntityReference nodes, which have<a name="line.292"></a>
<FONT color="green">293</FONT> * no equivalent in the XPath data model.<a name="line.293"></a>
<FONT color="green">294</FONT> *<a name="line.294"></a>
<FONT color="green">295</FONT> * @return integer used as a bit-array, containing flags defined in<a name="line.295"></a>
<FONT color="green">296</FONT> * the DOM's DTMFilter class. The value will be <a name="line.296"></a>
<FONT color="green">297</FONT> * &lt;code&gt;SHOW_ALL &amp; ~SHOW_ENTITY_REFERENCE&lt;/code&gt;, meaning that<a name="line.297"></a>
<FONT color="green">298</FONT> * only entity references are suppressed.<a name="line.298"></a>
<FONT color="green">299</FONT> */<a name="line.299"></a>
<FONT color="green">300</FONT> public int getWhatToShow()<a name="line.300"></a>
<FONT color="green">301</FONT> {<a name="line.301"></a>
<FONT color="green">302</FONT> return DTMFilter.SHOW_ALL &amp; ~DTMFilter.SHOW_ENTITY_REFERENCE;<a name="line.302"></a>
<FONT color="green">303</FONT> }<a name="line.303"></a>
<FONT color="green">304</FONT> <a name="line.304"></a>
<FONT color="green">305</FONT> /**<a name="line.305"></a>
<FONT color="green">306</FONT> * The filter object used to screen nodes. Filters are applied to<a name="line.306"></a>
<FONT color="green">307</FONT> * further reduce (and restructure) the DTMIterator's view of the<a name="line.307"></a>
<FONT color="green">308</FONT> * document. In our case, we will be using hardcoded filters built<a name="line.308"></a>
<FONT color="green">309</FONT> * into our iterators... but getFilter() is part of the DOM's <a name="line.309"></a>
<FONT color="green">310</FONT> * DTMIterator interface, so we have to support it.<a name="line.310"></a>
<FONT color="green">311</FONT> *<a name="line.311"></a>
<FONT color="green">312</FONT> * @return null, which is slightly misleading. True, there is no<a name="line.312"></a>
<FONT color="green">313</FONT> * user-written filter object, but in fact we are doing some very<a name="line.313"></a>
<FONT color="green">314</FONT> * sophisticated custom filtering. A DOM purist might suggest<a name="line.314"></a>
<FONT color="green">315</FONT> * returning a placeholder object just to indicate that this is<a name="line.315"></a>
<FONT color="green">316</FONT> * not going to return all nodes selected by whatToShow.<a name="line.316"></a>
<FONT color="green">317</FONT> */<a name="line.317"></a>
<FONT color="green">318</FONT> public DTMFilter getFilter()<a name="line.318"></a>
<FONT color="green">319</FONT> {<a name="line.319"></a>
<FONT color="green">320</FONT> return null;<a name="line.320"></a>
<FONT color="green">321</FONT> }<a name="line.321"></a>
<FONT color="green">322</FONT> <a name="line.322"></a>
<FONT color="green">323</FONT> /**<a name="line.323"></a>
<FONT color="green">324</FONT> * The value of this flag determines whether the children of entity<a name="line.324"></a>
<FONT color="green">325</FONT> * reference nodes are visible to the iterator. If false, they will be<a name="line.325"></a>
<FONT color="green">326</FONT> * skipped over.<a name="line.326"></a>
<FONT color="green">327</FONT> * &lt;br&gt; To produce a view of the document that has entity references<a name="line.327"></a>
<FONT color="green">328</FONT> * expanded and does not expose the entity reference node itself, use the<a name="line.328"></a>
<FONT color="green">329</FONT> * whatToShow flags to hide the entity reference node and set<a name="line.329"></a>
<FONT color="green">330</FONT> * expandEntityReferences to true when creating the iterator. To produce<a name="line.330"></a>
<FONT color="green">331</FONT> * a view of the document that has entity reference nodes but no entity<a name="line.331"></a>
<FONT color="green">332</FONT> * expansion, use the whatToShow flags to show the entity reference node<a name="line.332"></a>
<FONT color="green">333</FONT> * and set expandEntityReferences to false.<a name="line.333"></a>
<FONT color="green">334</FONT> *<a name="line.334"></a>
<FONT color="green">335</FONT> * @return true for all iterators based on NodeSetDTM, meaning that the<a name="line.335"></a>
<FONT color="green">336</FONT> * contents of EntityRefrence nodes may be returned (though whatToShow<a name="line.336"></a>
<FONT color="green">337</FONT> * says that the EntityReferences themselves are not shown.)<a name="line.337"></a>
<FONT color="green">338</FONT> */<a name="line.338"></a>
<FONT color="green">339</FONT> public boolean getExpandEntityReferences()<a name="line.339"></a>
<FONT color="green">340</FONT> {<a name="line.340"></a>
<FONT color="green">341</FONT> return true;<a name="line.341"></a>
<FONT color="green">342</FONT> }<a name="line.342"></a>
<FONT color="green">343</FONT> <a name="line.343"></a>
<FONT color="green">344</FONT> /**<a name="line.344"></a>
<FONT color="green">345</FONT> * Get an instance of a DTM that "owns" a node handle. Since a node <a name="line.345"></a>
<FONT color="green">346</FONT> * iterator may be passed without a DTMManager, this allows the <a name="line.346"></a>
<FONT color="green">347</FONT> * caller to easily get the DTM using just the iterator.<a name="line.347"></a>
<FONT color="green">348</FONT> *<a name="line.348"></a>
<FONT color="green">349</FONT> * @param nodeHandle the nodeHandle.<a name="line.349"></a>
<FONT color="green">350</FONT> *<a name="line.350"></a>
<FONT color="green">351</FONT> * @return a non-null DTM reference.<a name="line.351"></a>
<FONT color="green">352</FONT> */<a name="line.352"></a>
<FONT color="green">353</FONT> public DTM getDTM(int nodeHandle)<a name="line.353"></a>
<FONT color="green">354</FONT> {<a name="line.354"></a>
<FONT color="green">355</FONT> <a name="line.355"></a>
<FONT color="green">356</FONT> return m_manager.getDTM(nodeHandle);<a name="line.356"></a>
<FONT color="green">357</FONT> }<a name="line.357"></a>
<FONT color="green">358</FONT> <a name="line.358"></a>
<FONT color="green">359</FONT> /* An instance of the DTMManager. */<a name="line.359"></a>
<FONT color="green">360</FONT> DTMManager m_manager;<a name="line.360"></a>
<FONT color="green">361</FONT> <a name="line.361"></a>
<FONT color="green">362</FONT> /**<a name="line.362"></a>
<FONT color="green">363</FONT> * Get an instance of the DTMManager. Since a node <a name="line.363"></a>
<FONT color="green">364</FONT> * iterator may be passed without a DTMManager, this allows the <a name="line.364"></a>
<FONT color="green">365</FONT> * caller to easily get the DTMManager using just the iterator.<a name="line.365"></a>
<FONT color="green">366</FONT> *<a name="line.366"></a>
<FONT color="green">367</FONT> * @return a non-null DTMManager reference.<a name="line.367"></a>
<FONT color="green">368</FONT> */<a name="line.368"></a>
<FONT color="green">369</FONT> public DTMManager getDTMManager()<a name="line.369"></a>
<FONT color="green">370</FONT> {<a name="line.370"></a>
<FONT color="green">371</FONT> <a name="line.371"></a>
<FONT color="green">372</FONT> return m_manager;<a name="line.372"></a>
<FONT color="green">373</FONT> }<a name="line.373"></a>
<FONT color="green">374</FONT> <a name="line.374"></a>
<FONT color="green">375</FONT> /**<a name="line.375"></a>
<FONT color="green">376</FONT> * Returns the next node in the set and advances the position of the<a name="line.376"></a>
<FONT color="green">377</FONT> * iterator in the set. After a DTMIterator is created, the first call<a name="line.377"></a>
<FONT color="green">378</FONT> * to nextNode() returns the first node in the set.<a name="line.378"></a>
<FONT color="green">379</FONT> * @return The next &lt;code&gt;Node&lt;/code&gt; in the set being iterated over, or<a name="line.379"></a>
<FONT color="green">380</FONT> * &lt;code&gt;DTM.NULL&lt;/code&gt; if there are no more members in that set.<a name="line.380"></a>
<FONT color="green">381</FONT> * @throws DOMException<a name="line.381"></a>
<FONT color="green">382</FONT> * INVALID_STATE_ERR: Raised if this method is called after the<a name="line.382"></a>
<FONT color="green">383</FONT> * &lt;code&gt;detach&lt;/code&gt; method was invoked.<a name="line.383"></a>
<FONT color="green">384</FONT> */<a name="line.384"></a>
<FONT color="green">385</FONT> public int nextNode()<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> if ((m_next) &lt; this.size())<a name="line.388"></a>
<FONT color="green">389</FONT> {<a name="line.389"></a>
<FONT color="green">390</FONT> int next = this.elementAt(m_next);<a name="line.390"></a>
<FONT color="green">391</FONT> <a name="line.391"></a>
<FONT color="green">392</FONT> m_next++;<a name="line.392"></a>
<FONT color="green">393</FONT> <a name="line.393"></a>
<FONT color="green">394</FONT> return next;<a name="line.394"></a>
<FONT color="green">395</FONT> }<a name="line.395"></a>
<FONT color="green">396</FONT> else<a name="line.396"></a>
<FONT color="green">397</FONT> return DTM.NULL;<a name="line.397"></a>
<FONT color="green">398</FONT> }<a name="line.398"></a>
<FONT color="green">399</FONT> <a name="line.399"></a>
<FONT color="green">400</FONT> /**<a name="line.400"></a>
<FONT color="green">401</FONT> * Returns the previous node in the set and moves the position of the<a name="line.401"></a>
<FONT color="green">402</FONT> * iterator backwards in the set.<a name="line.402"></a>
<FONT color="green">403</FONT> * @return The previous &lt;code&gt;Node&lt;/code&gt; in the set being iterated over,<a name="line.403"></a>
<FONT color="green">404</FONT> * or&lt;code&gt;DTM.NULL&lt;/code&gt; if there are no more members in that set.<a name="line.404"></a>
<FONT color="green">405</FONT> * @throws DOMException<a name="line.405"></a>
<FONT color="green">406</FONT> * INVALID_STATE_ERR: Raised if this method is called after the<a name="line.406"></a>
<FONT color="green">407</FONT> * &lt;code&gt;detach&lt;/code&gt; method was invoked.<a name="line.407"></a>
<FONT color="green">408</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.408"></a>
<FONT color="green">409</FONT> * a cached type, and hence doesn't know what the previous node was.<a name="line.409"></a>
<FONT color="green">410</FONT> */<a name="line.410"></a>
<FONT color="green">411</FONT> public int previousNode()<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> if (!m_cacheNodes)<a name="line.414"></a>
<FONT color="green">415</FONT> throw new RuntimeException(<a name="line.415"></a>
<FONT color="green">416</FONT> XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_CANNOT_ITERATE, null)); //"This NodeSetDTM can not iterate to a previous node!");<a name="line.416"></a>
<FONT color="green">417</FONT> <a name="line.417"></a>
<FONT color="green">418</FONT> if ((m_next - 1) &gt; 0)<a name="line.418"></a>
<FONT color="green">419</FONT> {<a name="line.419"></a>
<FONT color="green">420</FONT> m_next--;<a name="line.420"></a>
<FONT color="green">421</FONT> <a name="line.421"></a>
<FONT color="green">422</FONT> return this.elementAt(m_next);<a name="line.422"></a>
<FONT color="green">423</FONT> }<a name="line.423"></a>
<FONT color="green">424</FONT> else<a name="line.424"></a>
<FONT color="green">425</FONT> return DTM.NULL;<a name="line.425"></a>
<FONT color="green">426</FONT> }<a name="line.426"></a>
<FONT color="green">427</FONT> <a name="line.427"></a>
<FONT color="green">428</FONT> /**<a name="line.428"></a>
<FONT color="green">429</FONT> * Detaches the iterator from the set which it iterated over, releasing<a name="line.429"></a>
<FONT color="green">430</FONT> * any computational resources and placing the iterator in the INVALID<a name="line.430"></a>
<FONT color="green">431</FONT> * state. After&lt;code&gt;detach&lt;/code&gt; has been invoked, calls to<a name="line.431"></a>
<FONT color="green">432</FONT> * &lt;code&gt;nextNode&lt;/code&gt; or&lt;code&gt;previousNode&lt;/code&gt; will raise the<a name="line.432"></a>
<FONT color="green">433</FONT> * exception INVALID_STATE_ERR.<a name="line.433"></a>
<FONT color="green">434</FONT> * &lt;p&gt;<a name="line.434"></a>
<FONT color="green">435</FONT> * This operation is a no-op in NodeSetDTM, and will not cause <a name="line.435"></a>
<FONT color="green">436</FONT> * INVALID_STATE_ERR to be raised by later operations.<a name="line.436"></a>
<FONT color="green">437</FONT> * &lt;/p&gt;<a name="line.437"></a>
<FONT color="green">438</FONT> */<a name="line.438"></a>
<FONT color="green">439</FONT> public void detach(){}<a name="line.439"></a>
<FONT color="green">440</FONT> <a name="line.440"></a>
<FONT color="green">441</FONT> /**<a name="line.441"></a>
<FONT color="green">442</FONT> * Specify if it's OK for detach to release the iterator for reuse.<a name="line.442"></a>
<FONT color="green">443</FONT> * <a name="line.443"></a>
<FONT color="green">444</FONT> * @param allowRelease true if it is OK for detach to release this iterator <a name="line.444"></a>
<FONT color="green">445</FONT> * for pooling.<a name="line.445"></a>
<FONT color="green">446</FONT> */<a name="line.446"></a>
<FONT color="green">447</FONT> public void allowDetachToRelease(boolean allowRelease)<a name="line.447"></a>
<FONT color="green">448</FONT> {<a name="line.448"></a>
<FONT color="green">449</FONT> // no action for right now.<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> * Tells if this NodeSetDTM is "fresh", in other words, if<a name="line.454"></a>
<FONT color="green">455</FONT> * the first nextNode() that is called will return the<a name="line.455"></a>
<FONT color="green">456</FONT> * first node in the set.<a name="line.456"></a>
<FONT color="green">457</FONT> *<a name="line.457"></a>
<FONT color="green">458</FONT> * @return true if nextNode() would return the first node in the set,<a name="line.458"></a>
<FONT color="green">459</FONT> * false if it would return a later one.<a name="line.459"></a>
<FONT color="green">460</FONT> */<a name="line.460"></a>
<FONT color="green">461</FONT> public boolean isFresh()<a name="line.461"></a>
<FONT color="green">462</FONT> {<a name="line.462"></a>
<FONT color="green">463</FONT> return (m_next == 0);<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> * If an index is requested, NodeSetDTM will call this method<a name="line.467"></a>
<FONT color="green">468</FONT> * to run the iterator to the index. By default this sets<a name="line.468"></a>
<FONT color="green">469</FONT> * m_next to the index. If the index argument is -1, this<a name="line.469"></a>
<FONT color="green">470</FONT> * signals that the iterator should be run to the end.<a name="line.470"></a>
<FONT color="green">471</FONT> *<a name="line.471"></a>
<FONT color="green">472</FONT> * @param index Position to advance (or retreat) to, with<a name="line.472"></a>
<FONT color="green">473</FONT> * 0 requesting the reset ("fresh") position and -1 (or indeed<a name="line.473"></a>
<FONT color="green">474</FONT> * any out-of-bounds value) requesting the final position.<a name="line.474"></a>
<FONT color="green">475</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not<a name="line.475"></a>
<FONT color="green">476</FONT> * one of the types which supports indexing/counting.<a name="line.476"></a>
<FONT color="green">477</FONT> */<a name="line.477"></a>
<FONT color="green">478</FONT> public void runTo(int index)<a name="line.478"></a>
<FONT color="green">479</FONT> {<a name="line.479"></a>
<FONT color="green">480</FONT> <a name="line.480"></a>
<FONT color="green">481</FONT> if (!m_cacheNodes)<a name="line.481"></a>
<FONT color="green">482</FONT> throw new RuntimeException(<a name="line.482"></a>
<FONT color="green">483</FONT> XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_CANNOT_INDEX, null)); //"This NodeSetDTM can not do indexing or counting functions!");<a name="line.483"></a>
<FONT color="green">484</FONT> <a name="line.484"></a>
<FONT color="green">485</FONT> if ((index &gt;= 0) &amp;&amp; (m_next &lt; m_firstFree))<a name="line.485"></a>
<FONT color="green">486</FONT> m_next = index;<a name="line.486"></a>
<FONT color="green">487</FONT> else<a name="line.487"></a>
<FONT color="green">488</FONT> m_next = m_firstFree - 1;<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> * Returns the &lt;code&gt;index&lt;/code&gt;th item in the collection. If<a name="line.492"></a>
<FONT color="green">493</FONT> * &lt;code&gt;index&lt;/code&gt; is greater than or equal to the number of nodes in<a name="line.493"></a>
<FONT color="green">494</FONT> * the list, this returns &lt;code&gt;null&lt;/code&gt;.<a name="line.494"></a>
<FONT color="green">495</FONT> * <a name="line.495"></a>
<FONT color="green">496</FONT> * TODO: What happens if index is out of range?<a name="line.496"></a>
<FONT color="green">497</FONT> * <a name="line.497"></a>
<FONT color="green">498</FONT> * @param index Index into the collection.<a name="line.498"></a>
<FONT color="green">499</FONT> * @return The node at the &lt;code&gt;index&lt;/code&gt;th position in the<a name="line.499"></a>
<FONT color="green">500</FONT> * &lt;code&gt;NodeList&lt;/code&gt;, or &lt;code&gt;null&lt;/code&gt; if that is not a valid<a name="line.500"></a>
<FONT color="green">501</FONT> * index.<a name="line.501"></a>
<FONT color="green">502</FONT> */<a name="line.502"></a>
<FONT color="green">503</FONT> public int item(int index)<a name="line.503"></a>
<FONT color="green">504</FONT> {<a name="line.504"></a>
<FONT color="green">505</FONT> <a name="line.505"></a>
<FONT color="green">506</FONT> runTo(index);<a name="line.506"></a>
<FONT color="green">507</FONT> <a name="line.507"></a>
<FONT color="green">508</FONT> return this.elementAt(index);<a name="line.508"></a>
<FONT color="green">509</FONT> }<a name="line.509"></a>
<FONT color="green">510</FONT> <a name="line.510"></a>
<FONT color="green">511</FONT> /**<a name="line.511"></a>
<FONT color="green">512</FONT> * The number of nodes in the list. The range of valid child node indices is<a name="line.512"></a>
<FONT color="green">513</FONT> * 0 to &lt;code&gt;length-1&lt;/code&gt; inclusive. Note that this operation requires<a name="line.513"></a>
<FONT color="green">514</FONT> * finding all the matching nodes, which may defeat attempts to defer<a name="line.514"></a>
<FONT color="green">515</FONT> * that work.<a name="line.515"></a>
<FONT color="green">516</FONT> *<a name="line.516"></a>
<FONT color="green">517</FONT> * @return integer indicating how many nodes are represented by this list.<a name="line.517"></a>
<FONT color="green">518</FONT> */<a name="line.518"></a>
<FONT color="green">519</FONT> public int getLength()<a name="line.519"></a>
<FONT color="green">520</FONT> {<a name="line.520"></a>
<FONT color="green">521</FONT> <a name="line.521"></a>
<FONT color="green">522</FONT> runTo(-1);<a name="line.522"></a>
<FONT color="green">523</FONT> <a name="line.523"></a>
<FONT color="green">524</FONT> return this.size();<a name="line.524"></a>
<FONT color="green">525</FONT> }<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> * Add a node to the NodeSetDTM. Not all types of NodeSetDTMs support this<a name="line.528"></a>
<FONT color="green">529</FONT> * operation<a name="line.529"></a>
<FONT color="green">530</FONT> *<a name="line.530"></a>
<FONT color="green">531</FONT> * @param n Node to be added<a name="line.531"></a>
<FONT color="green">532</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.532"></a>
<FONT color="green">533</FONT> * a mutable type.<a name="line.533"></a>
<FONT color="green">534</FONT> */<a name="line.534"></a>
<FONT color="green">535</FONT> public void addNode(int n)<a name="line.535"></a>
<FONT color="green">536</FONT> {<a name="line.536"></a>
<FONT color="green">537</FONT> <a name="line.537"></a>
<FONT color="green">538</FONT> if (!m_mutable)<a name="line.538"></a>
<FONT color="green">539</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.539"></a>
<FONT color="green">540</FONT> <a name="line.540"></a>
<FONT color="green">541</FONT> this.addElement(n);<a name="line.541"></a>
<FONT color="green">542</FONT> }<a name="line.542"></a>
<FONT color="green">543</FONT> <a name="line.543"></a>
<FONT color="green">544</FONT> /**<a name="line.544"></a>
<FONT color="green">545</FONT> * Insert a node at a given position.<a name="line.545"></a>
<FONT color="green">546</FONT> *<a name="line.546"></a>
<FONT color="green">547</FONT> * @param n Node to be added<a name="line.547"></a>
<FONT color="green">548</FONT> * @param pos Offset at which the node is to be inserted,<a name="line.548"></a>
<FONT color="green">549</FONT> * with 0 being the first position.<a name="line.549"></a>
<FONT color="green">550</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.550"></a>
<FONT color="green">551</FONT> * a mutable type.<a name="line.551"></a>
<FONT color="green">552</FONT> */<a name="line.552"></a>
<FONT color="green">553</FONT> public void insertNode(int n, int pos)<a name="line.553"></a>
<FONT color="green">554</FONT> {<a name="line.554"></a>
<FONT color="green">555</FONT> <a name="line.555"></a>
<FONT color="green">556</FONT> if (!m_mutable)<a name="line.556"></a>
<FONT color="green">557</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.557"></a>
<FONT color="green">558</FONT> <a name="line.558"></a>
<FONT color="green">559</FONT> insertElementAt(n, pos);<a name="line.559"></a>
<FONT color="green">560</FONT> }<a name="line.560"></a>
<FONT color="green">561</FONT> <a name="line.561"></a>
<FONT color="green">562</FONT> /**<a name="line.562"></a>
<FONT color="green">563</FONT> * Remove a node.<a name="line.563"></a>
<FONT color="green">564</FONT> *<a name="line.564"></a>
<FONT color="green">565</FONT> * @param n Node to be added<a name="line.565"></a>
<FONT color="green">566</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.566"></a>
<FONT color="green">567</FONT> * a mutable type.<a name="line.567"></a>
<FONT color="green">568</FONT> */<a name="line.568"></a>
<FONT color="green">569</FONT> public void removeNode(int n)<a name="line.569"></a>
<FONT color="green">570</FONT> {<a name="line.570"></a>
<FONT color="green">571</FONT> <a name="line.571"></a>
<FONT color="green">572</FONT> if (!m_mutable)<a name="line.572"></a>
<FONT color="green">573</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.573"></a>
<FONT color="green">574</FONT> <a name="line.574"></a>
<FONT color="green">575</FONT> this.removeElement(n);<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> // %TBD%<a name="line.578"></a>
<FONT color="green">579</FONT> // /**<a name="line.579"></a>
<FONT color="green">580</FONT> // * Copy NodeList members into this nodelist, adding in<a name="line.580"></a>
<FONT color="green">581</FONT> // * document order. If a node is null, don't add it.<a name="line.581"></a>
<FONT color="green">582</FONT> // *<a name="line.582"></a>
<FONT color="green">583</FONT> // * @param nodelist List of nodes which should now be referenced by<a name="line.583"></a>
<FONT color="green">584</FONT> // * this NodeSetDTM.<a name="line.584"></a>
<FONT color="green">585</FONT> // * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.585"></a>
<FONT color="green">586</FONT> // * a mutable type.<a name="line.586"></a>
<FONT color="green">587</FONT> // */<a name="line.587"></a>
<FONT color="green">588</FONT> // public void addNodes(NodeList nodelist)<a name="line.588"></a>
<FONT color="green">589</FONT> // {<a name="line.589"></a>
<FONT color="green">590</FONT> //<a name="line.590"></a>
<FONT color="green">591</FONT> // if (!m_mutable)<a name="line.591"></a>
<FONT color="green">592</FONT> // throw new RuntimeException("This NodeSetDTM is not mutable!");<a name="line.592"></a>
<FONT color="green">593</FONT> //<a name="line.593"></a>
<FONT color="green">594</FONT> // if (null != nodelist) // defensive to fix a bug that Sanjiva reported.<a name="line.594"></a>
<FONT color="green">595</FONT> // {<a name="line.595"></a>
<FONT color="green">596</FONT> // int nChildren = nodelist.getLength();<a name="line.596"></a>
<FONT color="green">597</FONT> //<a name="line.597"></a>
<FONT color="green">598</FONT> // for (int i = 0; i &lt; nChildren; i++)<a name="line.598"></a>
<FONT color="green">599</FONT> // {<a name="line.599"></a>
<FONT color="green">600</FONT> // int obj = nodelist.item(i);<a name="line.600"></a>
<FONT color="green">601</FONT> //<a name="line.601"></a>
<FONT color="green">602</FONT> // if (null != obj)<a name="line.602"></a>
<FONT color="green">603</FONT> // {<a name="line.603"></a>
<FONT color="green">604</FONT> // addElement(obj);<a name="line.604"></a>
<FONT color="green">605</FONT> // }<a name="line.605"></a>
<FONT color="green">606</FONT> // }<a name="line.606"></a>
<FONT color="green">607</FONT> // }<a name="line.607"></a>
<FONT color="green">608</FONT> //<a name="line.608"></a>
<FONT color="green">609</FONT> // // checkDups();<a name="line.609"></a>
<FONT color="green">610</FONT> // }<a name="line.610"></a>
<FONT color="green">611</FONT> <a name="line.611"></a>
<FONT color="green">612</FONT> // %TBD%<a name="line.612"></a>
<FONT color="green">613</FONT> // /**<a name="line.613"></a>
<FONT color="green">614</FONT> // * &lt;p&gt;Copy NodeList members into this nodelist, adding in<a name="line.614"></a>
<FONT color="green">615</FONT> // * document order. Only genuine node references will be copied;<a name="line.615"></a>
<FONT color="green">616</FONT> // * nulls appearing in the source NodeSetDTM will<a name="line.616"></a>
<FONT color="green">617</FONT> // * not be added to this one. &lt;/p&gt;<a name="line.617"></a>
<FONT color="green">618</FONT> // * <a name="line.618"></a>
<FONT color="green">619</FONT> // * &lt;p&gt; In case you're wondering why this function is needed: NodeSetDTM<a name="line.619"></a>
<FONT color="green">620</FONT> // * implements both DTMIterator and NodeList. If this method isn't<a name="line.620"></a>
<FONT color="green">621</FONT> // * provided, Java can't decide which of those to use when addNodes()<a name="line.621"></a>
<FONT color="green">622</FONT> // * is invoked. Providing the more-explicit match avoids that<a name="line.622"></a>
<FONT color="green">623</FONT> // * ambiguity.)&lt;/p&gt;<a name="line.623"></a>
<FONT color="green">624</FONT> // *<a name="line.624"></a>
<FONT color="green">625</FONT> // * @param ns NodeSetDTM whose members should be merged into this NodeSetDTM.<a name="line.625"></a>
<FONT color="green">626</FONT> // * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.626"></a>
<FONT color="green">627</FONT> // * a mutable type.<a name="line.627"></a>
<FONT color="green">628</FONT> // */<a name="line.628"></a>
<FONT color="green">629</FONT> // public void addNodes(NodeSetDTM ns)<a name="line.629"></a>
<FONT color="green">630</FONT> // {<a name="line.630"></a>
<FONT color="green">631</FONT> //<a name="line.631"></a>
<FONT color="green">632</FONT> // if (!m_mutable)<a name="line.632"></a>
<FONT color="green">633</FONT> // throw new RuntimeException("This NodeSetDTM is not mutable!");<a name="line.633"></a>
<FONT color="green">634</FONT> //<a name="line.634"></a>
<FONT color="green">635</FONT> // addNodes((DTMIterator) ns);<a name="line.635"></a>
<FONT color="green">636</FONT> // }<a name="line.636"></a>
<FONT color="green">637</FONT> <a name="line.637"></a>
<FONT color="green">638</FONT> /**<a name="line.638"></a>
<FONT color="green">639</FONT> * Copy NodeList members into this nodelist, adding in<a name="line.639"></a>
<FONT color="green">640</FONT> * document order. Null references are not added.<a name="line.640"></a>
<FONT color="green">641</FONT> *<a name="line.641"></a>
<FONT color="green">642</FONT> * @param iterator DTMIterator which yields the nodes to be added.<a name="line.642"></a>
<FONT color="green">643</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.643"></a>
<FONT color="green">644</FONT> * a mutable type.<a name="line.644"></a>
<FONT color="green">645</FONT> */<a name="line.645"></a>
<FONT color="green">646</FONT> public void addNodes(DTMIterator iterator)<a name="line.646"></a>
<FONT color="green">647</FONT> {<a name="line.647"></a>
<FONT color="green">648</FONT> <a name="line.648"></a>
<FONT color="green">649</FONT> if (!m_mutable)<a name="line.649"></a>
<FONT color="green">650</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.650"></a>
<FONT color="green">651</FONT> <a name="line.651"></a>
<FONT color="green">652</FONT> if (null != iterator) // defensive to fix a bug that Sanjiva reported.<a name="line.652"></a>
<FONT color="green">653</FONT> {<a name="line.653"></a>
<FONT color="green">654</FONT> int obj;<a name="line.654"></a>
<FONT color="green">655</FONT> <a name="line.655"></a>
<FONT color="green">656</FONT> while (DTM.NULL != (obj = iterator.nextNode()))<a name="line.656"></a>
<FONT color="green">657</FONT> {<a name="line.657"></a>
<FONT color="green">658</FONT> addElement(obj);<a name="line.658"></a>
<FONT color="green">659</FONT> }<a name="line.659"></a>
<FONT color="green">660</FONT> }<a name="line.660"></a>
<FONT color="green">661</FONT> <a name="line.661"></a>
<FONT color="green">662</FONT> // checkDups();<a name="line.662"></a>
<FONT color="green">663</FONT> }<a name="line.663"></a>
<FONT color="green">664</FONT> <a name="line.664"></a>
<FONT color="green">665</FONT> // %TBD%<a name="line.665"></a>
<FONT color="green">666</FONT> // /**<a name="line.666"></a>
<FONT color="green">667</FONT> // * Copy NodeList members into this nodelist, adding in<a name="line.667"></a>
<FONT color="green">668</FONT> // * document order. If a node is null, don't add it.<a name="line.668"></a>
<FONT color="green">669</FONT> // *<a name="line.669"></a>
<FONT color="green">670</FONT> // * @param nodelist List of nodes to be added<a name="line.670"></a>
<FONT color="green">671</FONT> // * @param support The XPath runtime context.<a name="line.671"></a>
<FONT color="green">672</FONT> // * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.672"></a>
<FONT color="green">673</FONT> // * a mutable type.<a name="line.673"></a>
<FONT color="green">674</FONT> // */<a name="line.674"></a>
<FONT color="green">675</FONT> // public void addNodesInDocOrder(NodeList nodelist, XPathContext support)<a name="line.675"></a>
<FONT color="green">676</FONT> // {<a name="line.676"></a>
<FONT color="green">677</FONT> //<a name="line.677"></a>
<FONT color="green">678</FONT> // if (!m_mutable)<a name="line.678"></a>
<FONT color="green">679</FONT> // throw new RuntimeException("This NodeSetDTM is not mutable!");<a name="line.679"></a>
<FONT color="green">680</FONT> //<a name="line.680"></a>
<FONT color="green">681</FONT> // int nChildren = nodelist.getLength();<a name="line.681"></a>
<FONT color="green">682</FONT> //<a name="line.682"></a>
<FONT color="green">683</FONT> // for (int i = 0; i &lt; nChildren; i++)<a name="line.683"></a>
<FONT color="green">684</FONT> // {<a name="line.684"></a>
<FONT color="green">685</FONT> // int node = nodelist.item(i);<a name="line.685"></a>
<FONT color="green">686</FONT> //<a name="line.686"></a>
<FONT color="green">687</FONT> // if (null != node)<a name="line.687"></a>
<FONT color="green">688</FONT> // {<a name="line.688"></a>
<FONT color="green">689</FONT> // addNodeInDocOrder(node, support);<a name="line.689"></a>
<FONT color="green">690</FONT> // }<a name="line.690"></a>
<FONT color="green">691</FONT> // }<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> * Copy NodeList members into this nodelist, adding in<a name="line.695"></a>
<FONT color="green">696</FONT> * document order. If a node is null, don't add it.<a name="line.696"></a>
<FONT color="green">697</FONT> *<a name="line.697"></a>
<FONT color="green">698</FONT> * @param iterator DTMIterator which yields the nodes to be added.<a name="line.698"></a>
<FONT color="green">699</FONT> * @param support The XPath runtime context.<a name="line.699"></a>
<FONT color="green">700</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.700"></a>
<FONT color="green">701</FONT> * a mutable type.<a name="line.701"></a>
<FONT color="green">702</FONT> */<a name="line.702"></a>
<FONT color="green">703</FONT> public void addNodesInDocOrder(DTMIterator iterator, XPathContext support)<a name="line.703"></a>
<FONT color="green">704</FONT> {<a name="line.704"></a>
<FONT color="green">705</FONT> <a name="line.705"></a>
<FONT color="green">706</FONT> if (!m_mutable)<a name="line.706"></a>
<FONT color="green">707</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.707"></a>
<FONT color="green">708</FONT> <a name="line.708"></a>
<FONT color="green">709</FONT> int node;<a name="line.709"></a>
<FONT color="green">710</FONT> <a name="line.710"></a>
<FONT color="green">711</FONT> while (DTM.NULL != (node = iterator.nextNode()))<a name="line.711"></a>
<FONT color="green">712</FONT> {<a name="line.712"></a>
<FONT color="green">713</FONT> addNodeInDocOrder(node, support);<a name="line.713"></a>
<FONT color="green">714</FONT> }<a name="line.714"></a>
<FONT color="green">715</FONT> }<a name="line.715"></a>
<FONT color="green">716</FONT> <a name="line.716"></a>
<FONT color="green">717</FONT> // %TBD%<a name="line.717"></a>
<FONT color="green">718</FONT> // /**<a name="line.718"></a>
<FONT color="green">719</FONT> // * Add the node list to this node set in document order.<a name="line.719"></a>
<FONT color="green">720</FONT> // *<a name="line.720"></a>
<FONT color="green">721</FONT> // * @param start index.<a name="line.721"></a>
<FONT color="green">722</FONT> // * @param end index.<a name="line.722"></a>
<FONT color="green">723</FONT> // * @param testIndex index.<a name="line.723"></a>
<FONT color="green">724</FONT> // * @param nodelist The nodelist to add.<a name="line.724"></a>
<FONT color="green">725</FONT> // * @param support The XPath runtime context.<a name="line.725"></a>
<FONT color="green">726</FONT> // *<a name="line.726"></a>
<FONT color="green">727</FONT> // * @return false always.<a name="line.727"></a>
<FONT color="green">728</FONT> // * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.728"></a>
<FONT color="green">729</FONT> // * a mutable type.<a name="line.729"></a>
<FONT color="green">730</FONT> // */<a name="line.730"></a>
<FONT color="green">731</FONT> // private boolean addNodesInDocOrder(int start, int end, int testIndex,<a name="line.731"></a>
<FONT color="green">732</FONT> // NodeList nodelist, XPathContext support)<a name="line.732"></a>
<FONT color="green">733</FONT> // {<a name="line.733"></a>
<FONT color="green">734</FONT> //<a name="line.734"></a>
<FONT color="green">735</FONT> // if (!m_mutable)<a name="line.735"></a>
<FONT color="green">736</FONT> // throw new RuntimeException("This NodeSetDTM is not mutable!");<a name="line.736"></a>
<FONT color="green">737</FONT> //<a name="line.737"></a>
<FONT color="green">738</FONT> // boolean foundit = false;<a name="line.738"></a>
<FONT color="green">739</FONT> // int i;<a name="line.739"></a>
<FONT color="green">740</FONT> // int node = nodelist.item(testIndex);<a name="line.740"></a>
<FONT color="green">741</FONT> //<a name="line.741"></a>
<FONT color="green">742</FONT> // for (i = end; i &gt;= start; i--)<a name="line.742"></a>
<FONT color="green">743</FONT> // {<a name="line.743"></a>
<FONT color="green">744</FONT> // int child = elementAt(i);<a name="line.744"></a>
<FONT color="green">745</FONT> //<a name="line.745"></a>
<FONT color="green">746</FONT> // if (child == node)<a name="line.746"></a>
<FONT color="green">747</FONT> // {<a name="line.747"></a>
<FONT color="green">748</FONT> // i = -2; // Duplicate, suppress insert<a name="line.748"></a>
<FONT color="green">749</FONT> //<a name="line.749"></a>
<FONT color="green">750</FONT> // break;<a name="line.750"></a>
<FONT color="green">751</FONT> // }<a name="line.751"></a>
<FONT color="green">752</FONT> //<a name="line.752"></a>
<FONT color="green">753</FONT> // if (!support.getDOMHelper().isNodeAfter(node, child))<a name="line.753"></a>
<FONT color="green">754</FONT> // {<a name="line.754"></a>
<FONT color="green">755</FONT> // insertElementAt(node, i + 1);<a name="line.755"></a>
<FONT color="green">756</FONT> //<a name="line.756"></a>
<FONT color="green">757</FONT> // testIndex--;<a name="line.757"></a>
<FONT color="green">758</FONT> //<a name="line.758"></a>
<FONT color="green">759</FONT> // if (testIndex &gt; 0)<a name="line.759"></a>
<FONT color="green">760</FONT> // {<a name="line.760"></a>
<FONT color="green">761</FONT> // boolean foundPrev = addNodesInDocOrder(0, i, testIndex, nodelist,<a name="line.761"></a>
<FONT color="green">762</FONT> // support);<a name="line.762"></a>
<FONT color="green">763</FONT> //<a name="line.763"></a>
<FONT color="green">764</FONT> // if (!foundPrev)<a name="line.764"></a>
<FONT color="green">765</FONT> // {<a name="line.765"></a>
<FONT color="green">766</FONT> // addNodesInDocOrder(i, size() - 1, testIndex, nodelist, support);<a name="line.766"></a>
<FONT color="green">767</FONT> // }<a name="line.767"></a>
<FONT color="green">768</FONT> // }<a name="line.768"></a>
<FONT color="green">769</FONT> //<a name="line.769"></a>
<FONT color="green">770</FONT> // break;<a name="line.770"></a>
<FONT color="green">771</FONT> // }<a name="line.771"></a>
<FONT color="green">772</FONT> // }<a name="line.772"></a>
<FONT color="green">773</FONT> //<a name="line.773"></a>
<FONT color="green">774</FONT> // if (i == -1)<a name="line.774"></a>
<FONT color="green">775</FONT> // {<a name="line.775"></a>
<FONT color="green">776</FONT> // insertElementAt(node, 0);<a name="line.776"></a>
<FONT color="green">777</FONT> // }<a name="line.777"></a>
<FONT color="green">778</FONT> //<a name="line.778"></a>
<FONT color="green">779</FONT> // return foundit;<a name="line.779"></a>
<FONT color="green">780</FONT> // }<a name="line.780"></a>
<FONT color="green">781</FONT> <a name="line.781"></a>
<FONT color="green">782</FONT> /**<a name="line.782"></a>
<FONT color="green">783</FONT> * Add the node into a vector of nodes where it should occur in<a name="line.783"></a>
<FONT color="green">784</FONT> * document order.<a name="line.784"></a>
<FONT color="green">785</FONT> * @param node The node to be added.<a name="line.785"></a>
<FONT color="green">786</FONT> * @param test true if we should test for doc order<a name="line.786"></a>
<FONT color="green">787</FONT> * @param support The XPath runtime context.<a name="line.787"></a>
<FONT color="green">788</FONT> * @return insertIndex.<a name="line.788"></a>
<FONT color="green">789</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.789"></a>
<FONT color="green">790</FONT> * a mutable type.<a name="line.790"></a>
<FONT color="green">791</FONT> */<a name="line.791"></a>
<FONT color="green">792</FONT> public int addNodeInDocOrder(int node, boolean test, XPathContext support)<a name="line.792"></a>
<FONT color="green">793</FONT> {<a name="line.793"></a>
<FONT color="green">794</FONT> <a name="line.794"></a>
<FONT color="green">795</FONT> if (!m_mutable)<a name="line.795"></a>
<FONT color="green">796</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.796"></a>
<FONT color="green">797</FONT> <a name="line.797"></a>
<FONT color="green">798</FONT> int insertIndex = -1;<a name="line.798"></a>
<FONT color="green">799</FONT> <a name="line.799"></a>
<FONT color="green">800</FONT> if (test)<a name="line.800"></a>
<FONT color="green">801</FONT> {<a name="line.801"></a>
<FONT color="green">802</FONT> <a name="line.802"></a>
<FONT color="green">803</FONT> // This needs to do a binary search, but a binary search <a name="line.803"></a>
<FONT color="green">804</FONT> // is somewhat tough because the sequence test involves <a name="line.804"></a>
<FONT color="green">805</FONT> // two nodes.<a name="line.805"></a>
<FONT color="green">806</FONT> int size = size(), i;<a name="line.806"></a>
<FONT color="green">807</FONT> <a name="line.807"></a>
<FONT color="green">808</FONT> for (i = size - 1; i &gt;= 0; i--)<a name="line.808"></a>
<FONT color="green">809</FONT> {<a name="line.809"></a>
<FONT color="green">810</FONT> int child = elementAt(i);<a name="line.810"></a>
<FONT color="green">811</FONT> <a name="line.811"></a>
<FONT color="green">812</FONT> if (child == node)<a name="line.812"></a>
<FONT color="green">813</FONT> {<a name="line.813"></a>
<FONT color="green">814</FONT> i = -2; // Duplicate, suppress insert<a name="line.814"></a>
<FONT color="green">815</FONT> <a name="line.815"></a>
<FONT color="green">816</FONT> break;<a name="line.816"></a>
<FONT color="green">817</FONT> }<a name="line.817"></a>
<FONT color="green">818</FONT> <a name="line.818"></a>
<FONT color="green">819</FONT> DTM dtm = support.getDTM(node);<a name="line.819"></a>
<FONT color="green">820</FONT> if (!dtm.isNodeAfter(node, child))<a name="line.820"></a>
<FONT color="green">821</FONT> {<a name="line.821"></a>
<FONT color="green">822</FONT> break;<a name="line.822"></a>
<FONT color="green">823</FONT> }<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> if (i != -2)<a name="line.826"></a>
<FONT color="green">827</FONT> {<a name="line.827"></a>
<FONT color="green">828</FONT> insertIndex = i + 1;<a name="line.828"></a>
<FONT color="green">829</FONT> <a name="line.829"></a>
<FONT color="green">830</FONT> insertElementAt(node, insertIndex);<a name="line.830"></a>
<FONT color="green">831</FONT> }<a name="line.831"></a>
<FONT color="green">832</FONT> }<a name="line.832"></a>
<FONT color="green">833</FONT> else<a name="line.833"></a>
<FONT color="green">834</FONT> {<a name="line.834"></a>
<FONT color="green">835</FONT> insertIndex = this.size();<a name="line.835"></a>
<FONT color="green">836</FONT> <a name="line.836"></a>
<FONT color="green">837</FONT> boolean foundit = false;<a name="line.837"></a>
<FONT color="green">838</FONT> <a name="line.838"></a>
<FONT color="green">839</FONT> for (int i = 0; i &lt; insertIndex; i++)<a name="line.839"></a>
<FONT color="green">840</FONT> {<a name="line.840"></a>
<FONT color="green">841</FONT> if (i == node)<a name="line.841"></a>
<FONT color="green">842</FONT> {<a name="line.842"></a>
<FONT color="green">843</FONT> foundit = true;<a name="line.843"></a>
<FONT color="green">844</FONT> <a name="line.844"></a>
<FONT color="green">845</FONT> break;<a name="line.845"></a>
<FONT color="green">846</FONT> }<a name="line.846"></a>
<FONT color="green">847</FONT> }<a name="line.847"></a>
<FONT color="green">848</FONT> <a name="line.848"></a>
<FONT color="green">849</FONT> if (!foundit)<a name="line.849"></a>
<FONT color="green">850</FONT> addElement(node);<a name="line.850"></a>
<FONT color="green">851</FONT> }<a name="line.851"></a>
<FONT color="green">852</FONT> <a name="line.852"></a>
<FONT color="green">853</FONT> // checkDups();<a name="line.853"></a>
<FONT color="green">854</FONT> return insertIndex;<a name="line.854"></a>
<FONT color="green">855</FONT> } // end addNodeInDocOrder(Vector v, Object obj)<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> * Add the node into a vector of nodes where it should occur in<a name="line.858"></a>
<FONT color="green">859</FONT> * document order.<a name="line.859"></a>
<FONT color="green">860</FONT> * @param node The node to be added.<a name="line.860"></a>
<FONT color="green">861</FONT> * @param support The XPath runtime context.<a name="line.861"></a>
<FONT color="green">862</FONT> *<a name="line.862"></a>
<FONT color="green">863</FONT> * @return The index where it was inserted.<a name="line.863"></a>
<FONT color="green">864</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.864"></a>
<FONT color="green">865</FONT> * a mutable type.<a name="line.865"></a>
<FONT color="green">866</FONT> */<a name="line.866"></a>
<FONT color="green">867</FONT> public int addNodeInDocOrder(int node, XPathContext support)<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> if (!m_mutable)<a name="line.870"></a>
<FONT color="green">871</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.871"></a>
<FONT color="green">872</FONT> <a name="line.872"></a>
<FONT color="green">873</FONT> return addNodeInDocOrder(node, true, support);<a name="line.873"></a>
<FONT color="green">874</FONT> } // end addNodeInDocOrder(Vector v, Object obj)<a name="line.874"></a>
<FONT color="green">875</FONT> <a name="line.875"></a>
<FONT color="green">876</FONT> /**<a name="line.876"></a>
<FONT color="green">877</FONT> * Get the length of the list.<a name="line.877"></a>
<FONT color="green">878</FONT> *<a name="line.878"></a>
<FONT color="green">879</FONT> * @return The size of this node set.<a name="line.879"></a>
<FONT color="green">880</FONT> */<a name="line.880"></a>
<FONT color="green">881</FONT> public int size()<a name="line.881"></a>
<FONT color="green">882</FONT> {<a name="line.882"></a>
<FONT color="green">883</FONT> return super.size();<a name="line.883"></a>
<FONT color="green">884</FONT> }<a name="line.884"></a>
<FONT color="green">885</FONT> <a name="line.885"></a>
<FONT color="green">886</FONT> /**<a name="line.886"></a>
<FONT color="green">887</FONT> * Append a Node onto the vector.<a name="line.887"></a>
<FONT color="green">888</FONT> *<a name="line.888"></a>
<FONT color="green">889</FONT> * @param value The node to be added.<a name="line.889"></a>
<FONT color="green">890</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.890"></a>
<FONT color="green">891</FONT> * a mutable type.<a name="line.891"></a>
<FONT color="green">892</FONT> */<a name="line.892"></a>
<FONT color="green">893</FONT> public void addElement(int value)<a name="line.893"></a>
<FONT color="green">894</FONT> {<a name="line.894"></a>
<FONT color="green">895</FONT> <a name="line.895"></a>
<FONT color="green">896</FONT> if (!m_mutable)<a name="line.896"></a>
<FONT color="green">897</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.897"></a>
<FONT color="green">898</FONT> <a name="line.898"></a>
<FONT color="green">899</FONT> super.addElement(value);<a name="line.899"></a>
<FONT color="green">900</FONT> }<a name="line.900"></a>
<FONT color="green">901</FONT> <a name="line.901"></a>
<FONT color="green">902</FONT> /**<a name="line.902"></a>
<FONT color="green">903</FONT> * Inserts the specified node in this vector at the specified index.<a name="line.903"></a>
<FONT color="green">904</FONT> * Each component in this vector with an index greater or equal to<a name="line.904"></a>
<FONT color="green">905</FONT> * the specified index is shifted upward to have an index one greater<a name="line.905"></a>
<FONT color="green">906</FONT> * than the value it had previously.<a name="line.906"></a>
<FONT color="green">907</FONT> *<a name="line.907"></a>
<FONT color="green">908</FONT> * @param value The node to be inserted.<a name="line.908"></a>
<FONT color="green">909</FONT> * @param at The index where the insert should occur.<a name="line.909"></a>
<FONT color="green">910</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.910"></a>
<FONT color="green">911</FONT> * a mutable type.<a name="line.911"></a>
<FONT color="green">912</FONT> */<a name="line.912"></a>
<FONT color="green">913</FONT> public void insertElementAt(int value, int at)<a name="line.913"></a>
<FONT color="green">914</FONT> {<a name="line.914"></a>
<FONT color="green">915</FONT> <a name="line.915"></a>
<FONT color="green">916</FONT> if (!m_mutable)<a name="line.916"></a>
<FONT color="green">917</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.917"></a>
<FONT color="green">918</FONT> <a name="line.918"></a>
<FONT color="green">919</FONT> super.insertElementAt(value, at);<a name="line.919"></a>
<FONT color="green">920</FONT> }<a name="line.920"></a>
<FONT color="green">921</FONT> <a name="line.921"></a>
<FONT color="green">922</FONT> /**<a name="line.922"></a>
<FONT color="green">923</FONT> * Append the nodes to the list.<a name="line.923"></a>
<FONT color="green">924</FONT> *<a name="line.924"></a>
<FONT color="green">925</FONT> * @param nodes The nodes to be appended to this node set.<a name="line.925"></a>
<FONT color="green">926</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.926"></a>
<FONT color="green">927</FONT> * a mutable type.<a name="line.927"></a>
<FONT color="green">928</FONT> */<a name="line.928"></a>
<FONT color="green">929</FONT> public void appendNodes(NodeVector nodes)<a name="line.929"></a>
<FONT color="green">930</FONT> {<a name="line.930"></a>
<FONT color="green">931</FONT> <a name="line.931"></a>
<FONT color="green">932</FONT> if (!m_mutable)<a name="line.932"></a>
<FONT color="green">933</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.933"></a>
<FONT color="green">934</FONT> <a name="line.934"></a>
<FONT color="green">935</FONT> super.appendNodes(nodes);<a name="line.935"></a>
<FONT color="green">936</FONT> }<a name="line.936"></a>
<FONT color="green">937</FONT> <a name="line.937"></a>
<FONT color="green">938</FONT> /**<a name="line.938"></a>
<FONT color="green">939</FONT> * Inserts the specified node in this vector at the specified index.<a name="line.939"></a>
<FONT color="green">940</FONT> * Each component in this vector with an index greater or equal to<a name="line.940"></a>
<FONT color="green">941</FONT> * the specified index is shifted upward to have an index one greater<a name="line.941"></a>
<FONT color="green">942</FONT> * than the value it had previously.<a name="line.942"></a>
<FONT color="green">943</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.943"></a>
<FONT color="green">944</FONT> * a mutable type.<a name="line.944"></a>
<FONT color="green">945</FONT> */<a name="line.945"></a>
<FONT color="green">946</FONT> public void removeAllElements()<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> if (!m_mutable)<a name="line.949"></a>
<FONT color="green">950</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.950"></a>
<FONT color="green">951</FONT> <a name="line.951"></a>
<FONT color="green">952</FONT> super.removeAllElements();<a name="line.952"></a>
<FONT color="green">953</FONT> }<a name="line.953"></a>
<FONT color="green">954</FONT> <a name="line.954"></a>
<FONT color="green">955</FONT> /**<a name="line.955"></a>
<FONT color="green">956</FONT> * Removes the first occurrence of the argument from this vector.<a name="line.956"></a>
<FONT color="green">957</FONT> * If the object is found in this vector, each component in the vector<a name="line.957"></a>
<FONT color="green">958</FONT> * with an index greater or equal to the object's index is shifted<a name="line.958"></a>
<FONT color="green">959</FONT> * downward to have an index one smaller than the value it had<a name="line.959"></a>
<FONT color="green">960</FONT> * previously.<a name="line.960"></a>
<FONT color="green">961</FONT> *<a name="line.961"></a>
<FONT color="green">962</FONT> * @param s The node to be removed.<a name="line.962"></a>
<FONT color="green">963</FONT> *<a name="line.963"></a>
<FONT color="green">964</FONT> * @return True if the node was successfully removed<a name="line.964"></a>
<FONT color="green">965</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.965"></a>
<FONT color="green">966</FONT> * a mutable type.<a name="line.966"></a>
<FONT color="green">967</FONT> */<a name="line.967"></a>
<FONT color="green">968</FONT> public boolean removeElement(int s)<a name="line.968"></a>
<FONT color="green">969</FONT> {<a name="line.969"></a>
<FONT color="green">970</FONT> <a name="line.970"></a>
<FONT color="green">971</FONT> if (!m_mutable)<a name="line.971"></a>
<FONT color="green">972</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.972"></a>
<FONT color="green">973</FONT> <a name="line.973"></a>
<FONT color="green">974</FONT> return super.removeElement(s);<a name="line.974"></a>
<FONT color="green">975</FONT> }<a name="line.975"></a>
<FONT color="green">976</FONT> <a name="line.976"></a>
<FONT color="green">977</FONT> /**<a name="line.977"></a>
<FONT color="green">978</FONT> * Deletes the component at the specified index. Each component in<a name="line.978"></a>
<FONT color="green">979</FONT> * this vector with an index greater or equal to the specified<a name="line.979"></a>
<FONT color="green">980</FONT> * index is shifted downward to have an index one smaller than<a name="line.980"></a>
<FONT color="green">981</FONT> * the value it had previously.<a name="line.981"></a>
<FONT color="green">982</FONT> *<a name="line.982"></a>
<FONT color="green">983</FONT> * @param i The index of the node to be removed.<a name="line.983"></a>
<FONT color="green">984</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.984"></a>
<FONT color="green">985</FONT> * a mutable type.<a name="line.985"></a>
<FONT color="green">986</FONT> */<a name="line.986"></a>
<FONT color="green">987</FONT> public void removeElementAt(int i)<a name="line.987"></a>
<FONT color="green">988</FONT> {<a name="line.988"></a>
<FONT color="green">989</FONT> <a name="line.989"></a>
<FONT color="green">990</FONT> if (!m_mutable)<a name="line.990"></a>
<FONT color="green">991</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.991"></a>
<FONT color="green">992</FONT> <a name="line.992"></a>
<FONT color="green">993</FONT> super.removeElementAt(i);<a name="line.993"></a>
<FONT color="green">994</FONT> }<a name="line.994"></a>
<FONT color="green">995</FONT> <a name="line.995"></a>
<FONT color="green">996</FONT> /**<a name="line.996"></a>
<FONT color="green">997</FONT> * Sets the component at the specified index of this vector to be the<a name="line.997"></a>
<FONT color="green">998</FONT> * specified object. The previous component at that position is discarded.<a name="line.998"></a>
<FONT color="green">999</FONT> *<a name="line.999"></a>
<FONT color="green">1000</FONT> * The index must be a value greater than or equal to 0 and less<a name="line.1000"></a>
<FONT color="green">1001</FONT> * than the current size of the vector.<a name="line.1001"></a>
<FONT color="green">1002</FONT> *<a name="line.1002"></a>
<FONT color="green">1003</FONT> * @param node The node to be set.<a name="line.1003"></a>
<FONT color="green">1004</FONT> * @param index The index of the node to be replaced.<a name="line.1004"></a>
<FONT color="green">1005</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.1005"></a>
<FONT color="green">1006</FONT> * a mutable type.<a name="line.1006"></a>
<FONT color="green">1007</FONT> */<a name="line.1007"></a>
<FONT color="green">1008</FONT> public void setElementAt(int node, int index)<a name="line.1008"></a>
<FONT color="green">1009</FONT> {<a name="line.1009"></a>
<FONT color="green">1010</FONT> <a name="line.1010"></a>
<FONT color="green">1011</FONT> if (!m_mutable)<a name="line.1011"></a>
<FONT color="green">1012</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.1012"></a>
<FONT color="green">1013</FONT> <a name="line.1013"></a>
<FONT color="green">1014</FONT> super.setElementAt(node, index);<a name="line.1014"></a>
<FONT color="green">1015</FONT> }<a name="line.1015"></a>
<FONT color="green">1016</FONT> <a name="line.1016"></a>
<FONT color="green">1017</FONT> /**<a name="line.1017"></a>
<FONT color="green">1018</FONT> * Same as setElementAt.<a name="line.1018"></a>
<FONT color="green">1019</FONT> *<a name="line.1019"></a>
<FONT color="green">1020</FONT> * @param node The node to be set.<a name="line.1020"></a>
<FONT color="green">1021</FONT> * @param index The index of the node to be replaced.<a name="line.1021"></a>
<FONT color="green">1022</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.1022"></a>
<FONT color="green">1023</FONT> * a mutable type.<a name="line.1023"></a>
<FONT color="green">1024</FONT> */<a name="line.1024"></a>
<FONT color="green">1025</FONT> public void setItem(int node, int index)<a name="line.1025"></a>
<FONT color="green">1026</FONT> {<a name="line.1026"></a>
<FONT color="green">1027</FONT> <a name="line.1027"></a>
<FONT color="green">1028</FONT> if (!m_mutable)<a name="line.1028"></a>
<FONT color="green">1029</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");<a name="line.1029"></a>
<FONT color="green">1030</FONT> <a name="line.1030"></a>
<FONT color="green">1031</FONT> super.setElementAt(node, index);<a name="line.1031"></a>
<FONT color="green">1032</FONT> }<a name="line.1032"></a>
<FONT color="green">1033</FONT> <a name="line.1033"></a>
<FONT color="green">1034</FONT> /**<a name="line.1034"></a>
<FONT color="green">1035</FONT> * Get the nth element.<a name="line.1035"></a>
<FONT color="green">1036</FONT> *<a name="line.1036"></a>
<FONT color="green">1037</FONT> * @param i The index of the requested node.<a name="line.1037"></a>
<FONT color="green">1038</FONT> *<a name="line.1038"></a>
<FONT color="green">1039</FONT> * @return Node at specified index.<a name="line.1039"></a>
<FONT color="green">1040</FONT> */<a name="line.1040"></a>
<FONT color="green">1041</FONT> public int elementAt(int i)<a name="line.1041"></a>
<FONT color="green">1042</FONT> {<a name="line.1042"></a>
<FONT color="green">1043</FONT> <a name="line.1043"></a>
<FONT color="green">1044</FONT> runTo(i);<a name="line.1044"></a>
<FONT color="green">1045</FONT> <a name="line.1045"></a>
<FONT color="green">1046</FONT> return super.elementAt(i);<a name="line.1046"></a>
<FONT color="green">1047</FONT> }<a name="line.1047"></a>
<FONT color="green">1048</FONT> <a name="line.1048"></a>
<FONT color="green">1049</FONT> /**<a name="line.1049"></a>
<FONT color="green">1050</FONT> * Tell if the table contains the given node.<a name="line.1050"></a>
<FONT color="green">1051</FONT> *<a name="line.1051"></a>
<FONT color="green">1052</FONT> * @param s Node to look for<a name="line.1052"></a>
<FONT color="green">1053</FONT> *<a name="line.1053"></a>
<FONT color="green">1054</FONT> * @return True if the given node was found.<a name="line.1054"></a>
<FONT color="green">1055</FONT> */<a name="line.1055"></a>
<FONT color="green">1056</FONT> public boolean contains(int s)<a name="line.1056"></a>
<FONT color="green">1057</FONT> {<a name="line.1057"></a>
<FONT color="green">1058</FONT> <a name="line.1058"></a>
<FONT color="green">1059</FONT> runTo(-1);<a name="line.1059"></a>
<FONT color="green">1060</FONT> <a name="line.1060"></a>
<FONT color="green">1061</FONT> return super.contains(s);<a name="line.1061"></a>
<FONT color="green">1062</FONT> }<a name="line.1062"></a>
<FONT color="green">1063</FONT> <a name="line.1063"></a>
<FONT color="green">1064</FONT> /**<a name="line.1064"></a>
<FONT color="green">1065</FONT> * Searches for the first occurence of the given argument,<a name="line.1065"></a>
<FONT color="green">1066</FONT> * beginning the search at index, and testing for equality<a name="line.1066"></a>
<FONT color="green">1067</FONT> * using the equals method.<a name="line.1067"></a>
<FONT color="green">1068</FONT> *<a name="line.1068"></a>
<FONT color="green">1069</FONT> * @param elem Node to look for<a name="line.1069"></a>
<FONT color="green">1070</FONT> * @param index Index of where to start the search<a name="line.1070"></a>
<FONT color="green">1071</FONT> * @return the index of the first occurrence of the object<a name="line.1071"></a>
<FONT color="green">1072</FONT> * argument in this vector at position index or later in the<a name="line.1072"></a>
<FONT color="green">1073</FONT> * vector; returns -1 if the object is not found.<a name="line.1073"></a>
<FONT color="green">1074</FONT> */<a name="line.1074"></a>
<FONT color="green">1075</FONT> public int indexOf(int elem, int index)<a name="line.1075"></a>
<FONT color="green">1076</FONT> {<a name="line.1076"></a>
<FONT color="green">1077</FONT> <a name="line.1077"></a>
<FONT color="green">1078</FONT> runTo(-1);<a name="line.1078"></a>
<FONT color="green">1079</FONT> <a name="line.1079"></a>
<FONT color="green">1080</FONT> return super.indexOf(elem, index);<a name="line.1080"></a>
<FONT color="green">1081</FONT> }<a name="line.1081"></a>
<FONT color="green">1082</FONT> <a name="line.1082"></a>
<FONT color="green">1083</FONT> /**<a name="line.1083"></a>
<FONT color="green">1084</FONT> * Searches for the first occurence of the given argument,<a name="line.1084"></a>
<FONT color="green">1085</FONT> * beginning the search at index, and testing for equality<a name="line.1085"></a>
<FONT color="green">1086</FONT> * using the equals method.<a name="line.1086"></a>
<FONT color="green">1087</FONT> *<a name="line.1087"></a>
<FONT color="green">1088</FONT> * @param elem Node to look for <a name="line.1088"></a>
<FONT color="green">1089</FONT> * @return the index of the first occurrence of the object<a name="line.1089"></a>
<FONT color="green">1090</FONT> * argument in this vector at position index or later in the<a name="line.1090"></a>
<FONT color="green">1091</FONT> * vector; returns -1 if the object is not found.<a name="line.1091"></a>
<FONT color="green">1092</FONT> */<a name="line.1092"></a>
<FONT color="green">1093</FONT> public int indexOf(int elem)<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> runTo(-1);<a name="line.1096"></a>
<FONT color="green">1097</FONT> <a name="line.1097"></a>
<FONT color="green">1098</FONT> return super.indexOf(elem);<a name="line.1098"></a>
<FONT color="green">1099</FONT> }<a name="line.1099"></a>
<FONT color="green">1100</FONT> <a name="line.1100"></a>
<FONT color="green">1101</FONT> /** If this node is being used as an iterator, the next index that nextNode()<a name="line.1101"></a>
<FONT color="green">1102</FONT> * will return. */<a name="line.1102"></a>
<FONT color="green">1103</FONT> transient protected int m_next = 0;<a name="line.1103"></a>
<FONT color="green">1104</FONT> <a name="line.1104"></a>
<FONT color="green">1105</FONT> /**<a name="line.1105"></a>
<FONT color="green">1106</FONT> * Get the current position, which is one less than<a name="line.1106"></a>
<FONT color="green">1107</FONT> * the next nextNode() call will retrieve. i.e. if<a name="line.1107"></a>
<FONT color="green">1108</FONT> * you call getCurrentPos() and the return is 0, the next<a name="line.1108"></a>
<FONT color="green">1109</FONT> * fetch will take place at index 1.<a name="line.1109"></a>
<FONT color="green">1110</FONT> *<a name="line.1110"></a>
<FONT color="green">1111</FONT> * @return The the current position index.<a name="line.1111"></a>
<FONT color="green">1112</FONT> */<a name="line.1112"></a>
<FONT color="green">1113</FONT> public int getCurrentPos()<a name="line.1113"></a>
<FONT color="green">1114</FONT> {<a name="line.1114"></a>
<FONT color="green">1115</FONT> return m_next;<a name="line.1115"></a>
<FONT color="green">1116</FONT> }<a name="line.1116"></a>
<FONT color="green">1117</FONT> <a name="line.1117"></a>
<FONT color="green">1118</FONT> /**<a name="line.1118"></a>
<FONT color="green">1119</FONT> * Set the current position in the node set.<a name="line.1119"></a>
<FONT color="green">1120</FONT> * @param i Must be a valid index.<a name="line.1120"></a>
<FONT color="green">1121</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.1121"></a>
<FONT color="green">1122</FONT> * a cached type, and thus doesn't permit indexed access.<a name="line.1122"></a>
<FONT color="green">1123</FONT> */<a name="line.1123"></a>
<FONT color="green">1124</FONT> public void setCurrentPos(int i)<a name="line.1124"></a>
<FONT color="green">1125</FONT> {<a name="line.1125"></a>
<FONT color="green">1126</FONT> <a name="line.1126"></a>
<FONT color="green">1127</FONT> if (!m_cacheNodes)<a name="line.1127"></a>
<FONT color="green">1128</FONT> throw new RuntimeException(<a name="line.1128"></a>
<FONT color="green">1129</FONT> XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_CANNOT_INDEX, null)); //"This NodeSetDTM can not do indexing or counting functions!");<a name="line.1129"></a>
<FONT color="green">1130</FONT> <a name="line.1130"></a>
<FONT color="green">1131</FONT> m_next = i;<a name="line.1131"></a>
<FONT color="green">1132</FONT> }<a name="line.1132"></a>
<FONT color="green">1133</FONT> <a name="line.1133"></a>
<FONT color="green">1134</FONT> /**<a name="line.1134"></a>
<FONT color="green">1135</FONT> * Return the last fetched node. Needed to support the UnionPathIterator.<a name="line.1135"></a>
<FONT color="green">1136</FONT> *<a name="line.1136"></a>
<FONT color="green">1137</FONT> * @return the last fetched node.<a name="line.1137"></a>
<FONT color="green">1138</FONT> * @throws RuntimeException thrown if this NodeSetDTM is not of <a name="line.1138"></a>
<FONT color="green">1139</FONT> * a cached type, and thus doesn't permit indexed access.<a name="line.1139"></a>
<FONT color="green">1140</FONT> */<a name="line.1140"></a>
<FONT color="green">1141</FONT> public int getCurrentNode()<a name="line.1141"></a>
<FONT color="green">1142</FONT> {<a name="line.1142"></a>
<FONT color="green">1143</FONT> <a name="line.1143"></a>
<FONT color="green">1144</FONT> if (!m_cacheNodes)<a name="line.1144"></a>
<FONT color="green">1145</FONT> throw new RuntimeException(<a name="line.1145"></a>
<FONT color="green">1146</FONT> "This NodeSetDTM can not do indexing or counting functions!");<a name="line.1146"></a>
<FONT color="green">1147</FONT> <a name="line.1147"></a>
<FONT color="green">1148</FONT> int saved = m_next;<a name="line.1148"></a>
<FONT color="green">1149</FONT> // because nextNode always increments<a name="line.1149"></a>
<FONT color="green">1150</FONT> // But watch out for copy29, where the root iterator didn't<a name="line.1150"></a>
<FONT color="green">1151</FONT> // have nextNode called on it.<a name="line.1151"></a>
<FONT color="green">1152</FONT> int current = (m_next &gt; 0) ? m_next-1 : m_next; <a name="line.1152"></a>
<FONT color="green">1153</FONT> int n = (current &lt; m_firstFree) ? elementAt(current) : DTM.NULL;<a name="line.1153"></a>
<FONT color="green">1154</FONT> m_next = saved; // HACK: I think this is a bit of a hack. -sb<a name="line.1154"></a>
<FONT color="green">1155</FONT> return n;<a name="line.1155"></a>
<FONT color="green">1156</FONT> }<a name="line.1156"></a>
<FONT color="green">1157</FONT> <a name="line.1157"></a>
<FONT color="green">1158</FONT> /** True if this list can be mutated. */<a name="line.1158"></a>
<FONT color="green">1159</FONT> transient protected boolean m_mutable = true;<a name="line.1159"></a>
<FONT color="green">1160</FONT> <a name="line.1160"></a>
<FONT color="green">1161</FONT> /** True if this list is cached.<a name="line.1161"></a>
<FONT color="green">1162</FONT> * @serial */<a name="line.1162"></a>
<FONT color="green">1163</FONT> transient protected boolean m_cacheNodes = true;<a name="line.1163"></a>
<FONT color="green">1164</FONT> <a name="line.1164"></a>
<FONT color="green">1165</FONT> /** The root of the iteration, if available. */<a name="line.1165"></a>
<FONT color="green">1166</FONT> protected int m_root = DTM.NULL;<a name="line.1166"></a>
<FONT color="green">1167</FONT> <a name="line.1167"></a>
<FONT color="green">1168</FONT> /**<a name="line.1168"></a>
<FONT color="green">1169</FONT> * Get whether or not this is a cached node set.<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 True if this list is cached.<a name="line.1172"></a>
<FONT color="green">1173</FONT> */<a name="line.1173"></a>
<FONT color="green">1174</FONT> public boolean getShouldCacheNodes()<a name="line.1174"></a>
<FONT color="green">1175</FONT> {<a name="line.1175"></a>
<FONT color="green">1176</FONT> return m_cacheNodes;<a name="line.1176"></a>
<FONT color="green">1177</FONT> }<a name="line.1177"></a>
<FONT color="green">1178</FONT> <a name="line.1178"></a>
<FONT color="green">1179</FONT> /**<a name="line.1179"></a>
<FONT color="green">1180</FONT> * If setShouldCacheNodes(true) is called, then nodes will<a name="line.1180"></a>
<FONT color="green">1181</FONT> * be cached. They are not cached by default. This switch must<a name="line.1181"></a>
<FONT color="green">1182</FONT> * be set before the first call to nextNode is made, to ensure<a name="line.1182"></a>
<FONT color="green">1183</FONT> * that all nodes are cached.<a name="line.1183"></a>
<FONT color="green">1184</FONT> *<a name="line.1184"></a>
<FONT color="green">1185</FONT> * @param b true if this node set should be cached.<a name="line.1185"></a>
<FONT color="green">1186</FONT> * @throws RuntimeException thrown if an attempt is made to<a name="line.1186"></a>
<FONT color="green">1187</FONT> * request caching after we've already begun stepping through the<a name="line.1187"></a>
<FONT color="green">1188</FONT> * nodes in this set.<a name="line.1188"></a>
<FONT color="green">1189</FONT> */<a name="line.1189"></a>
<FONT color="green">1190</FONT> public void setShouldCacheNodes(boolean b)<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> if (!isFresh())<a name="line.1193"></a>
<FONT color="green">1194</FONT> throw new RuntimeException(<a name="line.1194"></a>
<FONT color="green">1195</FONT> XSLMessages.createXPATHMessage(XPATHErrorResources.ER_CANNOT_CALL_SETSHOULDCACHENODE, null)); //"Can not call setShouldCacheNodes after nextNode has been called!");<a name="line.1195"></a>
<FONT color="green">1196</FONT> <a name="line.1196"></a>
<FONT color="green">1197</FONT> m_cacheNodes = b;<a name="line.1197"></a>
<FONT color="green">1198</FONT> m_mutable = true;<a name="line.1198"></a>
<FONT color="green">1199</FONT> }<a name="line.1199"></a>
<FONT color="green">1200</FONT> <a name="line.1200"></a>
<FONT color="green">1201</FONT> /**<a name="line.1201"></a>
<FONT color="green">1202</FONT> * Tells if this iterator can have nodes added to it or set via <a name="line.1202"></a>
<FONT color="green">1203</FONT> * the &lt;code&gt;setItem(int node, int index)&lt;/code&gt; method.<a name="line.1203"></a>
<FONT color="green">1204</FONT> * <a name="line.1204"></a>
<FONT color="green">1205</FONT> * @return True if the nodelist can be mutated.<a name="line.1205"></a>
<FONT color="green">1206</FONT> */<a name="line.1206"></a>
<FONT color="green">1207</FONT> public boolean isMutable()<a name="line.1207"></a>
<FONT color="green">1208</FONT> {<a name="line.1208"></a>
<FONT color="green">1209</FONT> return m_mutable;<a name="line.1209"></a>
<FONT color="green">1210</FONT> }<a name="line.1210"></a>
<FONT color="green">1211</FONT> <a name="line.1211"></a>
<FONT color="green">1212</FONT> transient private int m_last = 0;<a name="line.1212"></a>
<FONT color="green">1213</FONT> <a name="line.1213"></a>
<FONT color="green">1214</FONT> public int getLast()<a name="line.1214"></a>
<FONT color="green">1215</FONT> {<a name="line.1215"></a>
<FONT color="green">1216</FONT> return m_last;<a name="line.1216"></a>
<FONT color="green">1217</FONT> }<a name="line.1217"></a>
<FONT color="green">1218</FONT> <a name="line.1218"></a>
<FONT color="green">1219</FONT> public void setLast(int last)<a name="line.1219"></a>
<FONT color="green">1220</FONT> {<a name="line.1220"></a>
<FONT color="green">1221</FONT> m_last = last;<a name="line.1221"></a>
<FONT color="green">1222</FONT> }<a name="line.1222"></a>
<FONT color="green">1223</FONT> <a name="line.1223"></a>
<FONT color="green">1224</FONT> /**<a name="line.1224"></a>
<FONT color="green">1225</FONT> * Returns true if all the nodes in the iteration well be returned in document <a name="line.1225"></a>
<FONT color="green">1226</FONT> * order.<a name="line.1226"></a>
<FONT color="green">1227</FONT> * <a name="line.1227"></a>
<FONT color="green">1228</FONT> * @return true as a default.<a name="line.1228"></a>
<FONT color="green">1229</FONT> */<a name="line.1229"></a>
<FONT color="green">1230</FONT> public boolean isDocOrdered()<a name="line.1230"></a>
<FONT color="green">1231</FONT> {<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> /**<a name="line.1235"></a>
<FONT color="green">1236</FONT> * Returns the axis being iterated, if it is known.<a name="line.1236"></a>
<FONT color="green">1237</FONT> * <a name="line.1237"></a>
<FONT color="green">1238</FONT> * @return Axis.CHILD, etc., or -1 if the axis is not known or is of multiple <a name="line.1238"></a>
<FONT color="green">1239</FONT> * types.<a name="line.1239"></a>
<FONT color="green">1240</FONT> */<a name="line.1240"></a>
<FONT color="green">1241</FONT> public int getAxis()<a name="line.1241"></a>
<FONT color="green">1242</FONT> {<a name="line.1242"></a>
<FONT color="green">1243</FONT> return -1;<a name="line.1243"></a>
<FONT color="green">1244</FONT> }<a name="line.1244"></a>
<FONT color="green">1245</FONT> <a name="line.1245"></a>
<FONT color="green">1246</FONT> <a name="line.1246"></a>
<FONT color="green">1247</FONT> }<a name="line.1247"></a>
</PRE>
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