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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: XPathResultImpl.java 1225426 2011-12-29 04:13:08Z mrglavas $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> <a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> package org.apache.xpath.domapi;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> import javax.xml.transform.TransformerException;<a name="line.25"></a> |
| <FONT color="green">026</FONT> <a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.xpath.XPath;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.xpath.objects.XObject;<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> import org.apache.xpath.res.XPATHMessages;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.w3c.dom.DOMException;<a name="line.31"></a> |
| <FONT color="green">032</FONT> import org.w3c.dom.Node;<a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.w3c.dom.NodeList;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.w3c.dom.events.Event;<a name="line.34"></a> |
| <FONT color="green">035</FONT> import org.w3c.dom.events.EventListener;<a name="line.35"></a> |
| <FONT color="green">036</FONT> import org.w3c.dom.events.EventTarget;<a name="line.36"></a> |
| <FONT color="green">037</FONT> import org.w3c.dom.traversal.NodeIterator;<a name="line.37"></a> |
| <FONT color="green">038</FONT> import org.w3c.dom.xpath.XPathException;<a name="line.38"></a> |
| <FONT color="green">039</FONT> import org.w3c.dom.xpath.XPathResult;<a name="line.39"></a> |
| <FONT color="green">040</FONT> <a name="line.40"></a> |
| <FONT color="green">041</FONT> /**<a name="line.41"></a> |
| <FONT color="green">042</FONT> *<a name="line.42"></a> |
| <FONT color="green">043</FONT> * The class provides an implementation XPathResult according <a name="line.43"></a> |
| <FONT color="green">044</FONT> * to the DOM L3 XPath Specification, Working Group Note 26 February 2004.<a name="line.44"></a> |
| <FONT color="green">045</FONT> *<a name="line.45"></a> |
| <FONT color="green">046</FONT> * <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.</p><a name="line.46"></a> |
| <FONT color="green">047</FONT> * <a name="line.47"></a> |
| <FONT color="green">048</FONT> * <p>The <code>XPathResult</code> interface represents the result of the <a name="line.48"></a> |
| <FONT color="green">049</FONT> * evaluation of an XPath expression within the context of a particular <a name="line.49"></a> |
| <FONT color="green">050</FONT> * node. Since evaluation of an XPath expression can result in various <a name="line.50"></a> |
| <FONT color="green">051</FONT> * result types, this object makes it possible to discover and manipulate <a name="line.51"></a> |
| <FONT color="green">052</FONT> * the type and value of the result.</p><a name="line.52"></a> |
| <FONT color="green">053</FONT> * <a name="line.53"></a> |
| <FONT color="green">054</FONT> * <p>This implementation wraps an <code>XObject</code>.<a name="line.54"></a> |
| <FONT color="green">055</FONT> * <a name="line.55"></a> |
| <FONT color="green">056</FONT> * @see org.apache.xpath.objects.XObject<a name="line.56"></a> |
| <FONT color="green">057</FONT> * @see org.w3c.dom.xpath.XPathResult<a name="line.57"></a> |
| <FONT color="green">058</FONT> * <a name="line.58"></a> |
| <FONT color="green">059</FONT> * @xsl.usage internal<a name="line.59"></a> |
| <FONT color="green">060</FONT> */<a name="line.60"></a> |
| <FONT color="green">061</FONT> class XPathResultImpl implements XPathResult, EventListener {<a name="line.61"></a> |
| <FONT color="green">062</FONT> <a name="line.62"></a> |
| <FONT color="green">063</FONT> /**<a name="line.63"></a> |
| <FONT color="green">064</FONT> * The wrapped XObject<a name="line.64"></a> |
| <FONT color="green">065</FONT> */<a name="line.65"></a> |
| <FONT color="green">066</FONT> final private XObject m_resultObj;<a name="line.66"></a> |
| <FONT color="green">067</FONT> <a name="line.67"></a> |
| <FONT color="green">068</FONT> /**<a name="line.68"></a> |
| <FONT color="green">069</FONT> * The xpath object that wraps the expression used for this result.<a name="line.69"></a> |
| <FONT color="green">070</FONT> */<a name="line.70"></a> |
| <FONT color="green">071</FONT> final private XPath m_xpath;<a name="line.71"></a> |
| <FONT color="green">072</FONT> <a name="line.72"></a> |
| <FONT color="green">073</FONT> /**<a name="line.73"></a> |
| <FONT color="green">074</FONT> * This the type specified by the user during construction. Typically<a name="line.74"></a> |
| <FONT color="green">075</FONT> * the constructor will be called by org.apache.xpath.XPath.evaluate().<a name="line.75"></a> |
| <FONT color="green">076</FONT> */<a name="line.76"></a> |
| <FONT color="green">077</FONT> final private short m_resultType; <a name="line.77"></a> |
| <FONT color="green">078</FONT> <a name="line.78"></a> |
| <FONT color="green">079</FONT> private boolean m_isInvalidIteratorState = false;<a name="line.79"></a> |
| <FONT color="green">080</FONT> <a name="line.80"></a> |
| <FONT color="green">081</FONT> /**<a name="line.81"></a> |
| <FONT color="green">082</FONT> * Only used to attach a mutation event handler when specified<a name="line.82"></a> |
| <FONT color="green">083</FONT> * type is an iterator type.<a name="line.83"></a> |
| <FONT color="green">084</FONT> */<a name="line.84"></a> |
| <FONT color="green">085</FONT> final private Node m_contextNode;<a name="line.85"></a> |
| <FONT color="green">086</FONT> <a name="line.86"></a> |
| <FONT color="green">087</FONT> /**<a name="line.87"></a> |
| <FONT color="green">088</FONT> * The iterator, if this is an iterator type.<a name="line.88"></a> |
| <FONT color="green">089</FONT> */<a name="line.89"></a> |
| <FONT color="green">090</FONT> private NodeIterator m_iterator = null;;<a name="line.90"></a> |
| <FONT color="green">091</FONT> <a name="line.91"></a> |
| <FONT color="green">092</FONT> /**<a name="line.92"></a> |
| <FONT color="green">093</FONT> * The list, if this is a snapshot type.<a name="line.93"></a> |
| <FONT color="green">094</FONT> */<a name="line.94"></a> |
| <FONT color="green">095</FONT> private NodeList m_list = null;<a name="line.95"></a> |
| <FONT color="green">096</FONT> <a name="line.96"></a> |
| <FONT color="green">097</FONT> <a name="line.97"></a> |
| <FONT color="green">098</FONT> /**<a name="line.98"></a> |
| <FONT color="green">099</FONT> * Constructor for XPathResultImpl.<a name="line.99"></a> |
| <FONT color="green">100</FONT> * <a name="line.100"></a> |
| <FONT color="green">101</FONT> * For internal use only.<a name="line.101"></a> |
| <FONT color="green">102</FONT> */<a name="line.102"></a> |
| <FONT color="green">103</FONT> XPathResultImpl(short type, XObject result, Node contextNode, XPath xpath) {<a name="line.103"></a> |
| <FONT color="green">104</FONT> // Check that the type is valid<a name="line.104"></a> |
| <FONT color="green">105</FONT> if (!isValidType(type)) {<a name="line.105"></a> |
| <FONT color="green">106</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_INVALID_XPATH_TYPE, new Object[] {new Integer(type)}); <a name="line.106"></a> |
| <FONT color="green">107</FONT> throw new XPathException(XPathException.TYPE_ERR,fmsg); // Invalid XPath type argument: {0} <a name="line.107"></a> |
| <FONT color="green">108</FONT> }<a name="line.108"></a> |
| <FONT color="green">109</FONT> <a name="line.109"></a> |
| <FONT color="green">110</FONT> // Result object should never be null!<a name="line.110"></a> |
| <FONT color="green">111</FONT> if (null == result) {<a name="line.111"></a> |
| <FONT color="green">112</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_EMPTY_XPATH_RESULT, null); <a name="line.112"></a> |
| <FONT color="green">113</FONT> throw new XPathException(XPathException.INVALID_EXPRESSION_ERR,fmsg); // Empty XPath result object<a name="line.113"></a> |
| <FONT color="green">114</FONT> }<a name="line.114"></a> |
| <FONT color="green">115</FONT> <a name="line.115"></a> |
| <FONT color="green">116</FONT> this.m_resultObj = result;<a name="line.116"></a> |
| <FONT color="green">117</FONT> this.m_contextNode = contextNode;<a name="line.117"></a> |
| <FONT color="green">118</FONT> this.m_xpath = xpath;<a name="line.118"></a> |
| <FONT color="green">119</FONT> <a name="line.119"></a> |
| <FONT color="green">120</FONT> // If specified result was ANY_TYPE, determine XObject type<a name="line.120"></a> |
| <FONT color="green">121</FONT> if (type == ANY_TYPE) {<a name="line.121"></a> |
| <FONT color="green">122</FONT> this.m_resultType = getTypeFromXObject(result);<a name="line.122"></a> |
| <FONT color="green">123</FONT> } else {<a name="line.123"></a> |
| <FONT color="green">124</FONT> this.m_resultType = type;<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> // If the context node supports DOM Events and the type is one of the iterator<a name="line.127"></a> |
| <FONT color="green">128</FONT> // types register this result as an event listener<a name="line.128"></a> |
| <FONT color="green">129</FONT> if (((m_resultType == XPathResult.ORDERED_NODE_ITERATOR_TYPE) ||<a name="line.129"></a> |
| <FONT color="green">130</FONT> (m_resultType == XPathResult.UNORDERED_NODE_ITERATOR_TYPE))) {<a name="line.130"></a> |
| <FONT color="green">131</FONT> addEventListener();<a name="line.131"></a> |
| <FONT color="green">132</FONT> <a name="line.132"></a> |
| <FONT color="green">133</FONT> }// else can we handle iterator types if contextNode doesn't support EventTarget??<a name="line.133"></a> |
| <FONT color="green">134</FONT> <a name="line.134"></a> |
| <FONT color="green">135</FONT> // If this is an iterator type get the iterator<a name="line.135"></a> |
| <FONT color="green">136</FONT> if ((m_resultType == ORDERED_NODE_ITERATOR_TYPE) ||<a name="line.136"></a> |
| <FONT color="green">137</FONT> (m_resultType == UNORDERED_NODE_ITERATOR_TYPE) ||<a name="line.137"></a> |
| <FONT color="green">138</FONT> (m_resultType == ANY_UNORDERED_NODE_TYPE) ||<a name="line.138"></a> |
| <FONT color="green">139</FONT> (m_resultType == FIRST_ORDERED_NODE_TYPE)) {<a name="line.139"></a> |
| <FONT color="green">140</FONT> <a name="line.140"></a> |
| <FONT color="green">141</FONT> try {<a name="line.141"></a> |
| <FONT color="green">142</FONT> m_iterator = m_resultObj.nodeset();<a name="line.142"></a> |
| <FONT color="green">143</FONT> } catch (TransformerException te) {<a name="line.143"></a> |
| <FONT color="green">144</FONT> // probably not a node type<a name="line.144"></a> |
| <FONT color="green">145</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_INCOMPATIBLE_TYPES, new Object[] {m_xpath.getPatternString(), getTypeString(getTypeFromXObject(m_resultObj)),getTypeString(m_resultType)}); <a name="line.145"></a> |
| <FONT color="green">146</FONT> throw new XPathException(XPathException.TYPE_ERR, fmsg); // "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be coerced into the specified XPathResultType of {2}."},<a name="line.146"></a> |
| <FONT color="green">147</FONT> }<a name="line.147"></a> |
| <FONT color="green">148</FONT> <a name="line.148"></a> |
| <FONT color="green">149</FONT> // If user requested ordered nodeset and result is unordered <a name="line.149"></a> |
| <FONT color="green">150</FONT> // need to sort...TODO<a name="line.150"></a> |
| <FONT color="green">151</FONT> // if ((m_resultType == ORDERED_NODE_ITERATOR_TYPE) &&<a name="line.151"></a> |
| <FONT color="green">152</FONT> // (!(((DTMNodeIterator)m_iterator).getDTMIterator().isDocOrdered()))) {<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> // If it's a snapshot type, get the nodelist<a name="line.156"></a> |
| <FONT color="green">157</FONT> } else if ((m_resultType == UNORDERED_NODE_SNAPSHOT_TYPE) ||<a name="line.157"></a> |
| <FONT color="green">158</FONT> (m_resultType == ORDERED_NODE_SNAPSHOT_TYPE)) {<a name="line.158"></a> |
| <FONT color="green">159</FONT> try { <a name="line.159"></a> |
| <FONT color="green">160</FONT> m_list = m_resultObj.nodelist();<a name="line.160"></a> |
| <FONT color="green">161</FONT> } catch (TransformerException te) {<a name="line.161"></a> |
| <FONT color="green">162</FONT> // probably not a node type <a name="line.162"></a> |
| <FONT color="green">163</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_INCOMPATIBLE_TYPES, new Object[] {m_xpath.getPatternString(), getTypeString(getTypeFromXObject(m_resultObj)),getTypeString(m_resultType)}); <a name="line.163"></a> |
| <FONT color="green">164</FONT> throw new XPathException(XPathException.TYPE_ERR, fmsg); // "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be coerced into the specified XPathResultType of {2}."},<a name="line.164"></a> |
| <FONT color="green">165</FONT> }<a name="line.165"></a> |
| <FONT color="green">166</FONT> } <a name="line.166"></a> |
| <FONT color="green">167</FONT> }<a name="line.167"></a> |
| <FONT color="green">168</FONT> <a name="line.168"></a> |
| <FONT color="green">169</FONT> /**<a name="line.169"></a> |
| <FONT color="green">170</FONT> * @see org.w3c.dom.xpath.XPathResult#getResultType()<a name="line.170"></a> |
| <FONT color="green">171</FONT> */<a name="line.171"></a> |
| <FONT color="green">172</FONT> public short getResultType() {<a name="line.172"></a> |
| <FONT color="green">173</FONT> return m_resultType;<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> * The value of this number result.<a name="line.177"></a> |
| <FONT color="green">178</FONT> * @exception XPathException<a name="line.178"></a> |
| <FONT color="green">179</FONT> * TYPE_ERR: raised if <code>resultType</code> is not <a name="line.179"></a> |
| <FONT color="green">180</FONT> * <code>NUMBER_TYPE</code>.<a name="line.180"></a> |
| <FONT color="green">181</FONT> * @see org.w3c.dom.xpath.XPathResult#getNumberValue()<a name="line.181"></a> |
| <FONT color="green">182</FONT> */<a name="line.182"></a> |
| <FONT color="green">183</FONT> public double getNumberValue() throws XPathException {<a name="line.183"></a> |
| <FONT color="green">184</FONT> if (getResultType() != NUMBER_TYPE) {<a name="line.184"></a> |
| <FONT color="green">185</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_CANT_CONVERT_XPATHRESULTTYPE_TO_NUMBER, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)}); <a name="line.185"></a> |
| <FONT color="green">186</FONT> throw new XPathException(XPathException.TYPE_ERR,fmsg);<a name="line.186"></a> |
| <FONT color="green">187</FONT> // "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be converted to a number"<a name="line.187"></a> |
| <FONT color="green">188</FONT> } else {<a name="line.188"></a> |
| <FONT color="green">189</FONT> try {<a name="line.189"></a> |
| <FONT color="green">190</FONT> return m_resultObj.num();<a name="line.190"></a> |
| <FONT color="green">191</FONT> } catch (Exception e) {<a name="line.191"></a> |
| <FONT color="green">192</FONT> // Type check above should prevent this exception from occurring.<a name="line.192"></a> |
| <FONT color="green">193</FONT> throw new XPathException(XPathException.TYPE_ERR,e.getMessage());<a name="line.193"></a> |
| <FONT color="green">194</FONT> }<a name="line.194"></a> |
| <FONT color="green">195</FONT> } <a name="line.195"></a> |
| <FONT color="green">196</FONT> }<a name="line.196"></a> |
| <FONT color="green">197</FONT> <a name="line.197"></a> |
| <FONT color="green">198</FONT> /**<a name="line.198"></a> |
| <FONT color="green">199</FONT> * The value of this string result.<a name="line.199"></a> |
| <FONT color="green">200</FONT> * @exception XPathException<a name="line.200"></a> |
| <FONT color="green">201</FONT> * TYPE_ERR: raised if <code>resultType</code> is not <a name="line.201"></a> |
| <FONT color="green">202</FONT> * <code>STRING_TYPE</code>.<a name="line.202"></a> |
| <FONT color="green">203</FONT> * <a name="line.203"></a> |
| <FONT color="green">204</FONT> * @see org.w3c.dom.xpath.XPathResult#getStringValue()<a name="line.204"></a> |
| <FONT color="green">205</FONT> */<a name="line.205"></a> |
| <FONT color="green">206</FONT> public String getStringValue() throws XPathException {<a name="line.206"></a> |
| <FONT color="green">207</FONT> if (getResultType() != STRING_TYPE) {<a name="line.207"></a> |
| <FONT color="green">208</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_CANT_CONVERT_TO_STRING, new Object[] {m_xpath.getPatternString(), m_resultObj.getTypeString()}); <a name="line.208"></a> |
| <FONT color="green">209</FONT> throw new XPathException(XPathException.TYPE_ERR,fmsg);<a name="line.209"></a> |
| <FONT color="green">210</FONT> // "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be converted to a string."<a name="line.210"></a> |
| <FONT color="green">211</FONT> } else {<a name="line.211"></a> |
| <FONT color="green">212</FONT> try {<a name="line.212"></a> |
| <FONT color="green">213</FONT> return m_resultObj.str();<a name="line.213"></a> |
| <FONT color="green">214</FONT> } catch (Exception e) {<a name="line.214"></a> |
| <FONT color="green">215</FONT> // Type check above should prevent this exception from occurring.<a name="line.215"></a> |
| <FONT color="green">216</FONT> throw new XPathException(XPathException.TYPE_ERR,e.getMessage());<a name="line.216"></a> |
| <FONT color="green">217</FONT> }<a name="line.217"></a> |
| <FONT color="green">218</FONT> }<a name="line.218"></a> |
| <FONT color="green">219</FONT> }<a name="line.219"></a> |
| <FONT color="green">220</FONT> <a name="line.220"></a> |
| <FONT color="green">221</FONT> /**<a name="line.221"></a> |
| <FONT color="green">222</FONT> * @see org.w3c.dom.xpath.XPathResult#getBooleanValue()<a name="line.222"></a> |
| <FONT color="green">223</FONT> */<a name="line.223"></a> |
| <FONT color="green">224</FONT> public boolean getBooleanValue() throws XPathException {<a name="line.224"></a> |
| <FONT color="green">225</FONT> if (getResultType() != BOOLEAN_TYPE) {<a name="line.225"></a> |
| <FONT color="green">226</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_CANT_CONVERT_TO_BOOLEAN, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)}); <a name="line.226"></a> |
| <FONT color="green">227</FONT> throw new XPathException(XPathException.TYPE_ERR,fmsg);<a name="line.227"></a> |
| <FONT color="green">228</FONT> // "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be converted to a boolean." <a name="line.228"></a> |
| <FONT color="green">229</FONT> } else {<a name="line.229"></a> |
| <FONT color="green">230</FONT> try {<a name="line.230"></a> |
| <FONT color="green">231</FONT> return m_resultObj.bool();<a name="line.231"></a> |
| <FONT color="green">232</FONT> } catch (TransformerException e) {<a name="line.232"></a> |
| <FONT color="green">233</FONT> // Type check above should prevent this exception from occurring.<a name="line.233"></a> |
| <FONT color="green">234</FONT> throw new XPathException(XPathException.TYPE_ERR,e.getMessage());<a name="line.234"></a> |
| <FONT color="green">235</FONT> }<a name="line.235"></a> |
| <FONT color="green">236</FONT> }<a name="line.236"></a> |
| <FONT color="green">237</FONT> }<a name="line.237"></a> |
| <FONT color="green">238</FONT> <a name="line.238"></a> |
| <FONT color="green">239</FONT> /**<a name="line.239"></a> |
| <FONT color="green">240</FONT> * The value of this single node result, which may be <code>null</code>.<a name="line.240"></a> |
| <FONT color="green">241</FONT> * @exception XPathException<a name="line.241"></a> |
| <FONT color="green">242</FONT> * TYPE_ERR: raised if <code>resultType</code> is not <a name="line.242"></a> |
| <FONT color="green">243</FONT> * <code>ANY_UNORDERED_NODE_TYPE</code> or <a name="line.243"></a> |
| <FONT color="green">244</FONT> * <code>FIRST_ORDERED_NODE_TYPE</code>.<a name="line.244"></a> |
| <FONT color="green">245</FONT> * <a name="line.245"></a> |
| <FONT color="green">246</FONT> * @see org.w3c.dom.xpath.XPathResult#getSingleNodeValue()<a name="line.246"></a> |
| <FONT color="green">247</FONT> */<a name="line.247"></a> |
| <FONT color="green">248</FONT> public Node getSingleNodeValue() throws XPathException {<a name="line.248"></a> |
| <FONT color="green">249</FONT> <a name="line.249"></a> |
| <FONT color="green">250</FONT> if ((m_resultType != ANY_UNORDERED_NODE_TYPE) &&<a name="line.250"></a> |
| <FONT color="green">251</FONT> (m_resultType != FIRST_ORDERED_NODE_TYPE)) {<a name="line.251"></a> |
| <FONT color="green">252</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_CANT_CONVERT_TO_SINGLENODE, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)}); <a name="line.252"></a> |
| <FONT color="green">253</FONT> throw new XPathException(XPathException.TYPE_ERR,fmsg);<a name="line.253"></a> |
| <FONT color="green">254</FONT> // "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be converted to a single node. <a name="line.254"></a> |
| <FONT color="green">255</FONT> // This method applies only to types ANY_UNORDERED_NODE_TYPE and FIRST_ORDERED_NODE_TYPE."<a name="line.255"></a> |
| <FONT color="green">256</FONT> }<a name="line.256"></a> |
| <FONT color="green">257</FONT> <a name="line.257"></a> |
| <FONT color="green">258</FONT> NodeIterator result = null;<a name="line.258"></a> |
| <FONT color="green">259</FONT> try {<a name="line.259"></a> |
| <FONT color="green">260</FONT> result = m_resultObj.nodeset();<a name="line.260"></a> |
| <FONT color="green">261</FONT> } catch (TransformerException te) {<a name="line.261"></a> |
| <FONT color="green">262</FONT> throw new XPathException(XPathException.TYPE_ERR,te.getMessage());<a name="line.262"></a> |
| <FONT color="green">263</FONT> }<a name="line.263"></a> |
| <FONT color="green">264</FONT> <a name="line.264"></a> |
| <FONT color="green">265</FONT> if (null == result) return null;<a name="line.265"></a> |
| <FONT color="green">266</FONT> <a name="line.266"></a> |
| <FONT color="green">267</FONT> Node node = result.nextNode();<a name="line.267"></a> |
| <FONT color="green">268</FONT> <a name="line.268"></a> |
| <FONT color="green">269</FONT> // Wrap "namespace node" in an XPathNamespace <a name="line.269"></a> |
| <FONT color="green">270</FONT> if (isNamespaceNode(node)) {<a name="line.270"></a> |
| <FONT color="green">271</FONT> return new XPathNamespaceImpl(node);<a name="line.271"></a> |
| <FONT color="green">272</FONT> } else {<a name="line.272"></a> |
| <FONT color="green">273</FONT> return node;<a name="line.273"></a> |
| <FONT color="green">274</FONT> } <a name="line.274"></a> |
| <FONT color="green">275</FONT> }<a name="line.275"></a> |
| <FONT color="green">276</FONT> <a name="line.276"></a> |
| <FONT color="green">277</FONT> /**<a name="line.277"></a> |
| <FONT color="green">278</FONT> * @see org.w3c.dom.xpath.XPathResult#getInvalidIteratorState()<a name="line.278"></a> |
| <FONT color="green">279</FONT> */<a name="line.279"></a> |
| <FONT color="green">280</FONT> public boolean getInvalidIteratorState() {<a name="line.280"></a> |
| <FONT color="green">281</FONT> return m_isInvalidIteratorState;<a name="line.281"></a> |
| <FONT color="green">282</FONT> }<a name="line.282"></a> |
| <FONT color="green">283</FONT> <a name="line.283"></a> |
| <FONT color="green">284</FONT> /**<a name="line.284"></a> |
| <FONT color="green">285</FONT> * The number of nodes in the result snapshot. Valid values for <a name="line.285"></a> |
| <FONT color="green">286</FONT> * snapshotItem indices are <code>0</code> to <a name="line.286"></a> |
| <FONT color="green">287</FONT> * <code>snapshotLength-1</code> inclusive.<a name="line.287"></a> |
| <FONT color="green">288</FONT> * @exception XPathException<a name="line.288"></a> |
| <FONT color="green">289</FONT> * TYPE_ERR: raised if <code>resultType</code> is not <a name="line.289"></a> |
| <FONT color="green">290</FONT> * <code>UNORDERED_NODE_SNAPSHOT_TYPE</code> or <a name="line.290"></a> |
| <FONT color="green">291</FONT> * <code>ORDERED_NODE_SNAPSHOT_TYPE</code>.<a name="line.291"></a> |
| <FONT color="green">292</FONT> * <a name="line.292"></a> |
| <FONT color="green">293</FONT> * @see org.w3c.dom.xpath.XPathResult#getSnapshotLength()<a name="line.293"></a> |
| <FONT color="green">294</FONT> */<a name="line.294"></a> |
| <FONT color="green">295</FONT> public int getSnapshotLength() throws XPathException {<a name="line.295"></a> |
| <FONT color="green">296</FONT> <a name="line.296"></a> |
| <FONT color="green">297</FONT> if ((m_resultType != UNORDERED_NODE_SNAPSHOT_TYPE) &&<a name="line.297"></a> |
| <FONT color="green">298</FONT> (m_resultType != ORDERED_NODE_SNAPSHOT_TYPE)) {<a name="line.298"></a> |
| <FONT color="green">299</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_CANT_GET_SNAPSHOT_LENGTH, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)}); <a name="line.299"></a> |
| <FONT color="green">300</FONT> throw new XPathException(XPathException.TYPE_ERR,fmsg); <a name="line.300"></a> |
| <FONT color="green">301</FONT> // "The method getSnapshotLength cannot be called on the XPathResult of XPath expression {0} because its XPathResultType is {1}.<a name="line.301"></a> |
| <FONT color="green">302</FONT> }<a name="line.302"></a> |
| <FONT color="green">303</FONT> <a name="line.303"></a> |
| <FONT color="green">304</FONT> return m_list.getLength();<a name="line.304"></a> |
| <FONT color="green">305</FONT> }<a name="line.305"></a> |
| <FONT color="green">306</FONT> <a name="line.306"></a> |
| <FONT color="green">307</FONT> /**<a name="line.307"></a> |
| <FONT color="green">308</FONT> * Iterates and returns the next node from the node set or <a name="line.308"></a> |
| <FONT color="green">309</FONT> * <code>null</code>if there are no more nodes.<a name="line.309"></a> |
| <FONT color="green">310</FONT> * @return Returns the next node.<a name="line.310"></a> |
| <FONT color="green">311</FONT> * @exception XPathException<a name="line.311"></a> |
| <FONT color="green">312</FONT> * TYPE_ERR: raised if <code>resultType</code> is not <a name="line.312"></a> |
| <FONT color="green">313</FONT> * <code>UNORDERED_NODE_ITERATOR_TYPE</code> or <a name="line.313"></a> |
| <FONT color="green">314</FONT> * <code>ORDERED_NODE_ITERATOR_TYPE</code>.<a name="line.314"></a> |
| <FONT color="green">315</FONT> * @exception DOMException<a name="line.315"></a> |
| <FONT color="green">316</FONT> * INVALID_STATE_ERR: The document has been mutated since the result was <a name="line.316"></a> |
| <FONT color="green">317</FONT> * returned.<a name="line.317"></a> |
| <FONT color="green">318</FONT> * @see org.w3c.dom.xpath.XPathResult#iterateNext()<a name="line.318"></a> |
| <FONT color="green">319</FONT> */<a name="line.319"></a> |
| <FONT color="green">320</FONT> public Node iterateNext() throws XPathException, DOMException {<a name="line.320"></a> |
| <FONT color="green">321</FONT> if ((m_resultType != UNORDERED_NODE_ITERATOR_TYPE) &&<a name="line.321"></a> |
| <FONT color="green">322</FONT> (m_resultType != ORDERED_NODE_ITERATOR_TYPE)) {<a name="line.322"></a> |
| <FONT color="green">323</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_NON_ITERATOR_TYPE, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)}); <a name="line.323"></a> |
| <FONT color="green">324</FONT> throw new XPathException(XPathException.TYPE_ERR, fmsg); <a name="line.324"></a> |
| <FONT color="green">325</FONT> // "The method iterateNext cannot be called on the XPathResult of XPath expression {0} because its XPathResultType is {1}. <a name="line.325"></a> |
| <FONT color="green">326</FONT> // This method applies only to types UNORDERED_NODE_ITERATOR_TYPE and ORDERED_NODE_ITERATOR_TYPE."},<a name="line.326"></a> |
| <FONT color="green">327</FONT> }<a name="line.327"></a> |
| <FONT color="green">328</FONT> <a name="line.328"></a> |
| <FONT color="green">329</FONT> if (getInvalidIteratorState()) {<a name="line.329"></a> |
| <FONT color="green">330</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_DOC_MUTATED, null); <a name="line.330"></a> |
| <FONT color="green">331</FONT> throw new DOMException(DOMException.INVALID_STATE_ERR,fmsg); // Document mutated since result was returned. Iterator is invalid.<a name="line.331"></a> |
| <FONT color="green">332</FONT> } <a name="line.332"></a> |
| <FONT color="green">333</FONT> <a name="line.333"></a> |
| <FONT color="green">334</FONT> Node node = m_iterator.nextNode();<a name="line.334"></a> |
| <FONT color="green">335</FONT> if(null == node)<a name="line.335"></a> |
| <FONT color="green">336</FONT> removeEventListener(); // JIRA 1673<a name="line.336"></a> |
| <FONT color="green">337</FONT> // Wrap "namespace node" in an XPathNamespace <a name="line.337"></a> |
| <FONT color="green">338</FONT> if (isNamespaceNode(node)) {<a name="line.338"></a> |
| <FONT color="green">339</FONT> return new XPathNamespaceImpl(node);<a name="line.339"></a> |
| <FONT color="green">340</FONT> } else {<a name="line.340"></a> |
| <FONT color="green">341</FONT> return node;<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> /**<a name="line.345"></a> |
| <FONT color="green">346</FONT> * Returns the <code>index</code>th item in the snapshot collection. If <a name="line.346"></a> |
| <FONT color="green">347</FONT> * <code>index</code> is greater than or equal to the number of nodes in <a name="line.347"></a> |
| <FONT color="green">348</FONT> * the list, this method returns <code>null</code>. Unlike the iterator <a name="line.348"></a> |
| <FONT color="green">349</FONT> * result, the snapshot does not become invalid, but may not correspond <a name="line.349"></a> |
| <FONT color="green">350</FONT> * to the current document if it is mutated.<a name="line.350"></a> |
| <FONT color="green">351</FONT> * @param index Index into the snapshot collection.<a name="line.351"></a> |
| <FONT color="green">352</FONT> * @return The node at the <code>index</code>th position in the <a name="line.352"></a> |
| <FONT color="green">353</FONT> * <code>NodeList</code>, or <code>null</code> if that is not a valid <a name="line.353"></a> |
| <FONT color="green">354</FONT> * index.<a name="line.354"></a> |
| <FONT color="green">355</FONT> * @exception XPathException<a name="line.355"></a> |
| <FONT color="green">356</FONT> * TYPE_ERR: raised if <code>resultType</code> is not <a name="line.356"></a> |
| <FONT color="green">357</FONT> * <code>UNORDERED_NODE_SNAPSHOT_TYPE</code> or <a name="line.357"></a> |
| <FONT color="green">358</FONT> * <code>ORDERED_NODE_SNAPSHOT_TYPE</code>.<a name="line.358"></a> |
| <FONT color="green">359</FONT> *<a name="line.359"></a> |
| <FONT color="green">360</FONT> * @see org.w3c.dom.xpath.XPathResult#snapshotItem(int)<a name="line.360"></a> |
| <FONT color="green">361</FONT> */<a name="line.361"></a> |
| <FONT color="green">362</FONT> public Node snapshotItem(int index) throws XPathException {<a name="line.362"></a> |
| <FONT color="green">363</FONT> <a name="line.363"></a> |
| <FONT color="green">364</FONT> if ((m_resultType != UNORDERED_NODE_SNAPSHOT_TYPE) &&<a name="line.364"></a> |
| <FONT color="green">365</FONT> (m_resultType != ORDERED_NODE_SNAPSHOT_TYPE)) {<a name="line.365"></a> |
| <FONT color="green">366</FONT> String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_NON_SNAPSHOT_TYPE, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)}); <a name="line.366"></a> |
| <FONT color="green">367</FONT> throw new XPathException(XPathException.TYPE_ERR, fmsg); <a name="line.367"></a> |
| <FONT color="green">368</FONT> // "The method snapshotItem cannot be called on the XPathResult of XPath expression {0} because its XPathResultType is {1}. <a name="line.368"></a> |
| <FONT color="green">369</FONT> // This method applies only to types UNORDERED_NODE_SNAPSHOT_TYPE and ORDERED_NODE_SNAPSHOT_TYPE."},<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> Node node = m_list.item(index);<a name="line.372"></a> |
| <FONT color="green">373</FONT> <a name="line.373"></a> |
| <FONT color="green">374</FONT> // Wrap "namespace node" in an XPathNamespace <a name="line.374"></a> |
| <FONT color="green">375</FONT> if (isNamespaceNode(node)) {<a name="line.375"></a> |
| <FONT color="green">376</FONT> return new XPathNamespaceImpl(node);<a name="line.376"></a> |
| <FONT color="green">377</FONT> } else {<a name="line.377"></a> |
| <FONT color="green">378</FONT> return node;<a name="line.378"></a> |
| <FONT color="green">379</FONT> }<a name="line.379"></a> |
| <FONT color="green">380</FONT> }<a name="line.380"></a> |
| <FONT color="green">381</FONT> <a name="line.381"></a> |
| <FONT color="green">382</FONT> <a name="line.382"></a> |
| <FONT color="green">383</FONT> /**<a name="line.383"></a> |
| <FONT color="green">384</FONT> * Check if the specified type is one of the supported types.<a name="line.384"></a> |
| <FONT color="green">385</FONT> * @param type The specified type<a name="line.385"></a> |
| <FONT color="green">386</FONT> * <a name="line.386"></a> |
| <FONT color="green">387</FONT> * @return true If the specified type is supported; otherwise, returns false.<a name="line.387"></a> |
| <FONT color="green">388</FONT> */<a name="line.388"></a> |
| <FONT color="green">389</FONT> static boolean isValidType( short type ) {<a name="line.389"></a> |
| <FONT color="green">390</FONT> switch (type) {<a name="line.390"></a> |
| <FONT color="green">391</FONT> case ANY_TYPE:<a name="line.391"></a> |
| <FONT color="green">392</FONT> case NUMBER_TYPE:<a name="line.392"></a> |
| <FONT color="green">393</FONT> case STRING_TYPE:<a name="line.393"></a> |
| <FONT color="green">394</FONT> case BOOLEAN_TYPE:<a name="line.394"></a> |
| <FONT color="green">395</FONT> case UNORDERED_NODE_ITERATOR_TYPE:<a name="line.395"></a> |
| <FONT color="green">396</FONT> case ORDERED_NODE_ITERATOR_TYPE:<a name="line.396"></a> |
| <FONT color="green">397</FONT> case UNORDERED_NODE_SNAPSHOT_TYPE:<a name="line.397"></a> |
| <FONT color="green">398</FONT> case ORDERED_NODE_SNAPSHOT_TYPE:<a name="line.398"></a> |
| <FONT color="green">399</FONT> case ANY_UNORDERED_NODE_TYPE:<a name="line.399"></a> |
| <FONT color="green">400</FONT> case FIRST_ORDERED_NODE_TYPE: return true;<a name="line.400"></a> |
| <FONT color="green">401</FONT> default: return false;<a name="line.401"></a> |
| <FONT color="green">402</FONT> }<a name="line.402"></a> |
| <FONT color="green">403</FONT> }<a name="line.403"></a> |
| <FONT color="green">404</FONT> <a name="line.404"></a> |
| <FONT color="green">405</FONT> /**<a name="line.405"></a> |
| <FONT color="green">406</FONT> * @see org.w3c.dom.events.EventListener#handleEvent(Event)<a name="line.406"></a> |
| <FONT color="green">407</FONT> */<a name="line.407"></a> |
| <FONT color="green">408</FONT> public void handleEvent(Event event) {<a name="line.408"></a> |
| <FONT color="green">409</FONT> <a name="line.409"></a> |
| <FONT color="green">410</FONT> if (event.getType().equals("DOMSubtreeModified")) {<a name="line.410"></a> |
| <FONT color="green">411</FONT> // invalidate the iterator<a name="line.411"></a> |
| <FONT color="green">412</FONT> m_isInvalidIteratorState = true;<a name="line.412"></a> |
| <FONT color="green">413</FONT> <a name="line.413"></a> |
| <FONT color="green">414</FONT> // deregister as a listener to reduce computational load<a name="line.414"></a> |
| <FONT color="green">415</FONT> removeEventListener();<a name="line.415"></a> |
| <FONT color="green">416</FONT> }<a name="line.416"></a> |
| <FONT color="green">417</FONT> }<a name="line.417"></a> |
| <FONT color="green">418</FONT> <a name="line.418"></a> |
| <FONT color="green">419</FONT> /**<a name="line.419"></a> |
| <FONT color="green">420</FONT> * Given a request type, return the equivalent string.<a name="line.420"></a> |
| <FONT color="green">421</FONT> * For diagnostic purposes.<a name="line.421"></a> |
| <FONT color="green">422</FONT> *<a name="line.422"></a> |
| <FONT color="green">423</FONT> * @return type string <a name="line.423"></a> |
| <FONT color="green">424</FONT> */<a name="line.424"></a> |
| <FONT color="green">425</FONT> private String getTypeString(int type)<a name="line.425"></a> |
| <FONT color="green">426</FONT> {<a name="line.426"></a> |
| <FONT color="green">427</FONT> switch (type) {<a name="line.427"></a> |
| <FONT color="green">428</FONT> case ANY_TYPE: return "ANY_TYPE";<a name="line.428"></a> |
| <FONT color="green">429</FONT> case ANY_UNORDERED_NODE_TYPE: return "ANY_UNORDERED_NODE_TYPE";<a name="line.429"></a> |
| <FONT color="green">430</FONT> case BOOLEAN_TYPE: return "BOOLEAN";<a name="line.430"></a> |
| <FONT color="green">431</FONT> case FIRST_ORDERED_NODE_TYPE: return "FIRST_ORDERED_NODE_TYPE";<a name="line.431"></a> |
| <FONT color="green">432</FONT> case NUMBER_TYPE: return "NUMBER_TYPE";<a name="line.432"></a> |
| <FONT color="green">433</FONT> case ORDERED_NODE_ITERATOR_TYPE: return "ORDERED_NODE_ITERATOR_TYPE";<a name="line.433"></a> |
| <FONT color="green">434</FONT> case ORDERED_NODE_SNAPSHOT_TYPE: return "ORDERED_NODE_SNAPSHOT_TYPE";<a name="line.434"></a> |
| <FONT color="green">435</FONT> case STRING_TYPE: return "STRING_TYPE";<a name="line.435"></a> |
| <FONT color="green">436</FONT> case UNORDERED_NODE_ITERATOR_TYPE: return "UNORDERED_NODE_ITERATOR_TYPE";<a name="line.436"></a> |
| <FONT color="green">437</FONT> case UNORDERED_NODE_SNAPSHOT_TYPE: return "UNORDERED_NODE_SNAPSHOT_TYPE";<a name="line.437"></a> |
| <FONT color="green">438</FONT> default: return "#UNKNOWN";<a name="line.438"></a> |
| <FONT color="green">439</FONT> }<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> /**<a name="line.442"></a> |
| <FONT color="green">443</FONT> * Given an XObject, determine the corresponding DOM XPath type<a name="line.443"></a> |
| <FONT color="green">444</FONT> * <a name="line.444"></a> |
| <FONT color="green">445</FONT> * @return type string<a name="line.445"></a> |
| <FONT color="green">446</FONT> */<a name="line.446"></a> |
| <FONT color="green">447</FONT> private short getTypeFromXObject(XObject object) {<a name="line.447"></a> |
| <FONT color="green">448</FONT> switch (object.getType()) {<a name="line.448"></a> |
| <FONT color="green">449</FONT> case XObject.CLASS_BOOLEAN: return BOOLEAN_TYPE;<a name="line.449"></a> |
| <FONT color="green">450</FONT> case XObject.CLASS_NODESET: return UNORDERED_NODE_ITERATOR_TYPE; <a name="line.450"></a> |
| <FONT color="green">451</FONT> case XObject.CLASS_NUMBER: return NUMBER_TYPE;<a name="line.451"></a> |
| <FONT color="green">452</FONT> case XObject.CLASS_STRING: return STRING_TYPE;<a name="line.452"></a> |
| <FONT color="green">453</FONT> // XPath 2.0 types <a name="line.453"></a> |
| <FONT color="green">454</FONT> // case XObject.CLASS_DATE: <a name="line.454"></a> |
| <FONT color="green">455</FONT> // case XObject.CLASS_DATETIME:<a name="line.455"></a> |
| <FONT color="green">456</FONT> // case XObject.CLASS_DTDURATION:<a name="line.456"></a> |
| <FONT color="green">457</FONT> // case XObject.CLASS_GDAY:<a name="line.457"></a> |
| <FONT color="green">458</FONT> // case XObject.CLASS_GMONTH:<a name="line.458"></a> |
| <FONT color="green">459</FONT> // case XObject.CLASS_GMONTHDAY:<a name="line.459"></a> |
| <FONT color="green">460</FONT> // case XObject.CLASS_GYEAR:<a name="line.460"></a> |
| <FONT color="green">461</FONT> // case XObject.CLASS_GYEARMONTH: <a name="line.461"></a> |
| <FONT color="green">462</FONT> // case XObject.CLASS_TIME:<a name="line.462"></a> |
| <FONT color="green">463</FONT> // case XObject.CLASS_YMDURATION: return STRING_TYPE; // treat all date types as strings?<a name="line.463"></a> |
| <FONT color="green">464</FONT> <a name="line.464"></a> |
| <FONT color="green">465</FONT> case XObject.CLASS_RTREEFRAG: return UNORDERED_NODE_ITERATOR_TYPE; <a name="line.465"></a> |
| <FONT color="green">466</FONT> case XObject.CLASS_NULL: return ANY_TYPE; // throw exception ?<a name="line.466"></a> |
| <FONT color="green">467</FONT> default: return ANY_TYPE; // throw exception ?<a name="line.467"></a> |
| <FONT color="green">468</FONT> } <a name="line.468"></a> |
| <FONT color="green">469</FONT> <a name="line.469"></a> |
| <FONT color="green">470</FONT> } <a name="line.470"></a> |
| <FONT color="green">471</FONT> <a name="line.471"></a> |
| <FONT color="green">472</FONT> /**<a name="line.472"></a> |
| <FONT color="green">473</FONT> * Given a node, determine if it is a namespace node.<a name="line.473"></a> |
| <FONT color="green">474</FONT> * <a name="line.474"></a> |
| <FONT color="green">475</FONT> * @param node <a name="line.475"></a> |
| <FONT color="green">476</FONT> * <a name="line.476"></a> |
| <FONT color="green">477</FONT> * @return boolean Returns true if this is a namespace node; otherwise, returns false.<a name="line.477"></a> |
| <FONT color="green">478</FONT> */<a name="line.478"></a> |
| <FONT color="green">479</FONT> private boolean isNamespaceNode(Node node) {<a name="line.479"></a> |
| <FONT color="green">480</FONT> <a name="line.480"></a> |
| <FONT color="green">481</FONT> if ((null != node) && <a name="line.481"></a> |
| <FONT color="green">482</FONT> (node.getNodeType() == Node.ATTRIBUTE_NODE) &&<a name="line.482"></a> |
| <FONT color="green">483</FONT> (node.getNodeName().startsWith("xmlns:") || node.getNodeName().equals("xmlns"))) {<a name="line.483"></a> |
| <FONT color="green">484</FONT> return true; <a name="line.484"></a> |
| <FONT color="green">485</FONT> } else {<a name="line.485"></a> |
| <FONT color="green">486</FONT> return false;<a name="line.486"></a> |
| <FONT color="green">487</FONT> }<a name="line.487"></a> |
| <FONT color="green">488</FONT> }<a name="line.488"></a> |
| <FONT color="green">489</FONT> <a name="line.489"></a> |
| <FONT color="green">490</FONT> /**<a name="line.490"></a> |
| <FONT color="green">491</FONT> * Add m_contextNode to Event Listner to listen for Mutations Events<a name="line.491"></a> |
| <FONT color="green">492</FONT> *<a name="line.492"></a> |
| <FONT color="green">493</FONT> */<a name="line.493"></a> |
| <FONT color="green">494</FONT> private void addEventListener(){<a name="line.494"></a> |
| <FONT color="green">495</FONT> if(m_contextNode instanceof EventTarget)<a name="line.495"></a> |
| <FONT color="green">496</FONT> ((EventTarget)m_contextNode).addEventListener("DOMSubtreeModified",this,true);<a name="line.496"></a> |
| <FONT color="green">497</FONT> <a name="line.497"></a> |
| <FONT color="green">498</FONT> }<a name="line.498"></a> |
| <FONT color="green">499</FONT> <a name="line.499"></a> |
| <FONT color="green">500</FONT> <a name="line.500"></a> |
| <FONT color="green">501</FONT> /**<a name="line.501"></a> |
| <FONT color="green">502</FONT> * Remove m_contextNode to Event Listner to listen for Mutations Events<a name="line.502"></a> |
| <FONT color="green">503</FONT> *<a name="line.503"></a> |
| <FONT color="green">504</FONT> */<a name="line.504"></a> |
| <FONT color="green">505</FONT> private void removeEventListener(){<a name="line.505"></a> |
| <FONT color="green">506</FONT> if(m_contextNode instanceof EventTarget)<a name="line.506"></a> |
| <FONT color="green">507</FONT> ((EventTarget)m_contextNode).removeEventListener("DOMSubtreeModified",this,true);<a name="line.507"></a> |
| <FONT color="green">508</FONT> }<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> |
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| </PRE> |
| </BODY> |
| </HTML> |
