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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> // $Id: XPathFactoryImpl.java 1225277 2011-12-28 18:50:56Z mrglavas $<a name="line.18"></a>
<FONT color="green">019</FONT> <a name="line.19"></a>
<FONT color="green">020</FONT> package org.apache.xpath.jaxp;<a name="line.20"></a>
<FONT color="green">021</FONT> <a name="line.21"></a>
<FONT color="green">022</FONT> import org.apache.xpath.res.XPATHErrorResources;<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> <a name="line.24"></a>
<FONT color="green">025</FONT> import javax.xml.XMLConstants;<a name="line.25"></a>
<FONT color="green">026</FONT> import javax.xml.xpath.XPathFactory;<a name="line.26"></a>
<FONT color="green">027</FONT> import javax.xml.xpath.XPathFactoryConfigurationException;<a name="line.27"></a>
<FONT color="green">028</FONT> import javax.xml.xpath.XPathFunctionResolver;<a name="line.28"></a>
<FONT color="green">029</FONT> import javax.xml.xpath.XPathVariableResolver;<a name="line.29"></a>
<FONT color="green">030</FONT> <a name="line.30"></a>
<FONT color="green">031</FONT> /**<a name="line.31"></a>
<FONT color="green">032</FONT> * The XPathFactory builds XPaths.<a name="line.32"></a>
<FONT color="green">033</FONT> *<a name="line.33"></a>
<FONT color="green">034</FONT> * @version $Revision: 1225277 $<a name="line.34"></a>
<FONT color="green">035</FONT> * @author Ramesh Mandava<a name="line.35"></a>
<FONT color="green">036</FONT> */<a name="line.36"></a>
<FONT color="green">037</FONT> public class XPathFactoryImpl extends XPathFactory {<a name="line.37"></a>
<FONT color="green">038</FONT> <a name="line.38"></a>
<FONT color="green">039</FONT> /**<a name="line.39"></a>
<FONT color="green">040</FONT> * &lt;p&gt;Name of class as a constant to use for debugging.&lt;/p&gt;<a name="line.40"></a>
<FONT color="green">041</FONT> */<a name="line.41"></a>
<FONT color="green">042</FONT> private static final String CLASS_NAME = "XPathFactoryImpl";<a name="line.42"></a>
<FONT color="green">043</FONT> <a name="line.43"></a>
<FONT color="green">044</FONT> /**<a name="line.44"></a>
<FONT color="green">045</FONT> *&lt;p&gt;XPathFunctionResolver for this XPathFactory and created XPaths.&lt;/p&gt;<a name="line.45"></a>
<FONT color="green">046</FONT> */<a name="line.46"></a>
<FONT color="green">047</FONT> private XPathFunctionResolver xPathFunctionResolver = null;<a name="line.47"></a>
<FONT color="green">048</FONT> <a name="line.48"></a>
<FONT color="green">049</FONT> /**<a name="line.49"></a>
<FONT color="green">050</FONT> * &lt;p&gt;XPathVariableResolver for this XPathFactory and created XPaths&lt;/p&gt;<a name="line.50"></a>
<FONT color="green">051</FONT> */<a name="line.51"></a>
<FONT color="green">052</FONT> private XPathVariableResolver xPathVariableResolver = null;<a name="line.52"></a>
<FONT color="green">053</FONT> <a name="line.53"></a>
<FONT color="green">054</FONT> /**<a name="line.54"></a>
<FONT color="green">055</FONT> * &lt;p&gt;State of secure processing feature.&lt;/p&gt;<a name="line.55"></a>
<FONT color="green">056</FONT> */<a name="line.56"></a>
<FONT color="green">057</FONT> private boolean featureSecureProcessing = false;<a name="line.57"></a>
<FONT color="green">058</FONT> <a name="line.58"></a>
<FONT color="green">059</FONT> /**<a name="line.59"></a>
<FONT color="green">060</FONT> * &lt;p&gt;Is specified object model supported by this <a name="line.60"></a>
<FONT color="green">061</FONT> * &lt;code&gt;XPathFactory&lt;/code&gt;?&lt;/p&gt;<a name="line.61"></a>
<FONT color="green">062</FONT> * <a name="line.62"></a>
<FONT color="green">063</FONT> * @param objectModel Specifies the object model which the returned<a name="line.63"></a>
<FONT color="green">064</FONT> * &lt;code&gt;XPathFactory&lt;/code&gt; will understand.<a name="line.64"></a>
<FONT color="green">065</FONT> * <a name="line.65"></a>
<FONT color="green">066</FONT> * @return &lt;code&gt;true&lt;/code&gt; if &lt;code&gt;XPathFactory&lt;/code&gt; supports <a name="line.66"></a>
<FONT color="green">067</FONT> * &lt;code&gt;objectModel&lt;/code&gt;, else &lt;code&gt;false&lt;/code&gt;.<a name="line.67"></a>
<FONT color="green">068</FONT> * <a name="line.68"></a>
<FONT color="green">069</FONT> * @throws NullPointerException If &lt;code&gt;objectModel&lt;/code&gt; is &lt;code&gt;null&lt;/code&gt;.<a name="line.69"></a>
<FONT color="green">070</FONT> * @throws IllegalArgumentException If &lt;code&gt;objectModel.length() == 0&lt;/code&gt;.<a name="line.70"></a>
<FONT color="green">071</FONT> */<a name="line.71"></a>
<FONT color="green">072</FONT> public boolean isObjectModelSupported(String objectModel) {<a name="line.72"></a>
<FONT color="green">073</FONT> <a name="line.73"></a>
<FONT color="green">074</FONT> if (objectModel == null) {<a name="line.74"></a>
<FONT color="green">075</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.75"></a>
<FONT color="green">076</FONT> XPATHErrorResources.ER_OBJECT_MODEL_NULL,<a name="line.76"></a>
<FONT color="green">077</FONT> new Object[] { this.getClass().getName() } );<a name="line.77"></a>
<FONT color="green">078</FONT> <a name="line.78"></a>
<FONT color="green">079</FONT> throw new NullPointerException( fmsg );<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> if (objectModel.length() == 0) {<a name="line.82"></a>
<FONT color="green">083</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.83"></a>
<FONT color="green">084</FONT> XPATHErrorResources.ER_OBJECT_MODEL_EMPTY,<a name="line.84"></a>
<FONT color="green">085</FONT> new Object[] { this.getClass().getName() } );<a name="line.85"></a>
<FONT color="green">086</FONT> throw new IllegalArgumentException( fmsg );<a name="line.86"></a>
<FONT color="green">087</FONT> }<a name="line.87"></a>
<FONT color="green">088</FONT> <a name="line.88"></a>
<FONT color="green">089</FONT> // know how to support default object model, W3C DOM<a name="line.89"></a>
<FONT color="green">090</FONT> if (objectModel.equals(XPathFactory.DEFAULT_OBJECT_MODEL_URI)) {<a name="line.90"></a>
<FONT color="green">091</FONT> return true;<a name="line.91"></a>
<FONT color="green">092</FONT> }<a name="line.92"></a>
<FONT color="green">093</FONT> <a name="line.93"></a>
<FONT color="green">094</FONT> // don't know how to support anything else<a name="line.94"></a>
<FONT color="green">095</FONT> return false;<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> * &lt;p&gt;Returns a new &lt;code&gt;XPath&lt;/code&gt; object using the underlying<a name="line.99"></a>
<FONT color="green">100</FONT> * object model determined when the factory was instantiated.&lt;/p&gt;<a name="line.100"></a>
<FONT color="green">101</FONT> * <a name="line.101"></a>
<FONT color="green">102</FONT> * @return New &lt;code&gt;XPath&lt;/code&gt;<a name="line.102"></a>
<FONT color="green">103</FONT> */<a name="line.103"></a>
<FONT color="green">104</FONT> public javax.xml.xpath.XPath newXPath() {<a name="line.104"></a>
<FONT color="green">105</FONT> return new org.apache.xpath.jaxp.XPathImpl(<a name="line.105"></a>
<FONT color="green">106</FONT> xPathVariableResolver, xPathFunctionResolver,<a name="line.106"></a>
<FONT color="green">107</FONT> featureSecureProcessing );<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> /**<a name="line.110"></a>
<FONT color="green">111</FONT> * &lt;p&gt;Set a feature for this &lt;code&gt;XPathFactory&lt;/code&gt; and <a name="line.111"></a>
<FONT color="green">112</FONT> * &lt;code&gt;XPath&lt;/code&gt;s created by this factory.&lt;/p&gt;<a name="line.112"></a>
<FONT color="green">113</FONT> * <a name="line.113"></a>
<FONT color="green">114</FONT> * &lt;p&gt;<a name="line.114"></a>
<FONT color="green">115</FONT> * Feature names are fully qualified {@link java.net.URI}s.<a name="line.115"></a>
<FONT color="green">116</FONT> * Implementations may define their own features.<a name="line.116"></a>
<FONT color="green">117</FONT> * An {@link XPathFactoryConfigurationException} is thrown if this<a name="line.117"></a>
<FONT color="green">118</FONT> * &lt;code&gt;XPathFactory&lt;/code&gt; or the &lt;code&gt;XPath&lt;/code&gt;s<a name="line.118"></a>
<FONT color="green">119</FONT> * it creates cannot support the feature.<a name="line.119"></a>
<FONT color="green">120</FONT> * It is possible for an &lt;code&gt;XPathFactory&lt;/code&gt; to expose a feature<a name="line.120"></a>
<FONT color="green">121</FONT> * value but be unable to change its state.<a name="line.121"></a>
<FONT color="green">122</FONT> * &lt;/p&gt;<a name="line.122"></a>
<FONT color="green">123</FONT> * <a name="line.123"></a>
<FONT color="green">124</FONT> * &lt;p&gt;See {@link javax.xml.xpath.XPathFactory} for full documentation<a name="line.124"></a>
<FONT color="green">125</FONT> * of specific features.&lt;/p&gt;<a name="line.125"></a>
<FONT color="green">126</FONT> * <a name="line.126"></a>
<FONT color="green">127</FONT> * @param name Feature name.<a name="line.127"></a>
<FONT color="green">128</FONT> * @param value Is feature state &lt;code&gt;true&lt;/code&gt; or &lt;code&gt;false&lt;/code&gt;.<a name="line.128"></a>
<FONT color="green">129</FONT> * <a name="line.129"></a>
<FONT color="green">130</FONT> * @throws XPathFactoryConfigurationException if this <a name="line.130"></a>
<FONT color="green">131</FONT> * &lt;code&gt;XPathFactory&lt;/code&gt; or the &lt;code&gt;XPath&lt;/code&gt;s<a name="line.131"></a>
<FONT color="green">132</FONT> * it creates cannot support this feature.<a name="line.132"></a>
<FONT color="green">133</FONT> * @throws NullPointerException if &lt;code&gt;name&lt;/code&gt; is <a name="line.133"></a>
<FONT color="green">134</FONT> * &lt;code&gt;null&lt;/code&gt;.<a name="line.134"></a>
<FONT color="green">135</FONT> */<a name="line.135"></a>
<FONT color="green">136</FONT> public void setFeature(String name, boolean value)<a name="line.136"></a>
<FONT color="green">137</FONT> throws XPathFactoryConfigurationException {<a name="line.137"></a>
<FONT color="green">138</FONT> <a name="line.138"></a>
<FONT color="green">139</FONT> // feature name cannot be null<a name="line.139"></a>
<FONT color="green">140</FONT> if (name == null) {<a name="line.140"></a>
<FONT color="green">141</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.141"></a>
<FONT color="green">142</FONT> XPATHErrorResources.ER_FEATURE_NAME_NULL,<a name="line.142"></a>
<FONT color="green">143</FONT> new Object[] { CLASS_NAME, value ? Boolean.TRUE : Boolean.FALSE } );<a name="line.143"></a>
<FONT color="green">144</FONT> throw new NullPointerException( fmsg );<a name="line.144"></a>
<FONT color="green">145</FONT> }<a name="line.145"></a>
<FONT color="green">146</FONT> <a name="line.146"></a>
<FONT color="green">147</FONT> // secure processing?<a name="line.147"></a>
<FONT color="green">148</FONT> if (name.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {<a name="line.148"></a>
<FONT color="green">149</FONT> <a name="line.149"></a>
<FONT color="green">150</FONT> featureSecureProcessing = value;<a name="line.150"></a>
<FONT color="green">151</FONT> <a name="line.151"></a>
<FONT color="green">152</FONT> // all done processing feature<a name="line.152"></a>
<FONT color="green">153</FONT> return;<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> // unknown feature<a name="line.156"></a>
<FONT color="green">157</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.157"></a>
<FONT color="green">158</FONT> XPATHErrorResources.ER_FEATURE_UNKNOWN,<a name="line.158"></a>
<FONT color="green">159</FONT> new Object[] { name, CLASS_NAME, value ? Boolean.TRUE : Boolean.FALSE } );<a name="line.159"></a>
<FONT color="green">160</FONT> throw new XPathFactoryConfigurationException( fmsg );<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> /**<a name="line.163"></a>
<FONT color="green">164</FONT> * &lt;p&gt;Get the state of the named feature.&lt;/p&gt;<a name="line.164"></a>
<FONT color="green">165</FONT> * <a name="line.165"></a>
<FONT color="green">166</FONT> * &lt;p&gt;<a name="line.166"></a>
<FONT color="green">167</FONT> * Feature names are fully qualified {@link java.net.URI}s.<a name="line.167"></a>
<FONT color="green">168</FONT> * Implementations may define their own features.<a name="line.168"></a>
<FONT color="green">169</FONT> * An {@link XPathFactoryConfigurationException} is thrown if this<a name="line.169"></a>
<FONT color="green">170</FONT> * &lt;code&gt;XPathFactory&lt;/code&gt; or the &lt;code&gt;XPath&lt;/code&gt;s<a name="line.170"></a>
<FONT color="green">171</FONT> * it creates cannot support the feature.<a name="line.171"></a>
<FONT color="green">172</FONT> * It is possible for an &lt;code&gt;XPathFactory&lt;/code&gt; to expose a feature <a name="line.172"></a>
<FONT color="green">173</FONT> * value but be unable to change its state.<a name="line.173"></a>
<FONT color="green">174</FONT> * &lt;/p&gt;<a name="line.174"></a>
<FONT color="green">175</FONT> * <a name="line.175"></a>
<FONT color="green">176</FONT> * @param name Feature name.<a name="line.176"></a>
<FONT color="green">177</FONT> * <a name="line.177"></a>
<FONT color="green">178</FONT> * @return State of the named feature.<a name="line.178"></a>
<FONT color="green">179</FONT> * <a name="line.179"></a>
<FONT color="green">180</FONT> * @throws XPathFactoryConfigurationException if this <a name="line.180"></a>
<FONT color="green">181</FONT> * &lt;code&gt;XPathFactory&lt;/code&gt; or the &lt;code&gt;XPath&lt;/code&gt;s<a name="line.181"></a>
<FONT color="green">182</FONT> * it creates cannot support this feature.<a name="line.182"></a>
<FONT color="green">183</FONT> * @throws NullPointerException if &lt;code&gt;name&lt;/code&gt; is <a name="line.183"></a>
<FONT color="green">184</FONT> * &lt;code&gt;null&lt;/code&gt;.<a name="line.184"></a>
<FONT color="green">185</FONT> */<a name="line.185"></a>
<FONT color="green">186</FONT> public boolean getFeature(String name)<a name="line.186"></a>
<FONT color="green">187</FONT> throws XPathFactoryConfigurationException {<a name="line.187"></a>
<FONT color="green">188</FONT> <a name="line.188"></a>
<FONT color="green">189</FONT> // feature name cannot be null<a name="line.189"></a>
<FONT color="green">190</FONT> if (name == null) {<a name="line.190"></a>
<FONT color="green">191</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.191"></a>
<FONT color="green">192</FONT> XPATHErrorResources.ER_GETTING_NULL_FEATURE,<a name="line.192"></a>
<FONT color="green">193</FONT> new Object[] { CLASS_NAME } );<a name="line.193"></a>
<FONT color="green">194</FONT> throw new NullPointerException( fmsg );<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> // secure processing?<a name="line.197"></a>
<FONT color="green">198</FONT> if (name.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {<a name="line.198"></a>
<FONT color="green">199</FONT> return featureSecureProcessing;<a name="line.199"></a>
<FONT color="green">200</FONT> }<a name="line.200"></a>
<FONT color="green">201</FONT> <a name="line.201"></a>
<FONT color="green">202</FONT> // unknown feature<a name="line.202"></a>
<FONT color="green">203</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.203"></a>
<FONT color="green">204</FONT> XPATHErrorResources.ER_GETTING_UNKNOWN_FEATURE,<a name="line.204"></a>
<FONT color="green">205</FONT> new Object[] { name, CLASS_NAME } );<a name="line.205"></a>
<FONT color="green">206</FONT> <a name="line.206"></a>
<FONT color="green">207</FONT> throw new XPathFactoryConfigurationException( fmsg );<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> * &lt;p&gt;Establish a default function resolver.&lt;/p&gt;<a name="line.211"></a>
<FONT color="green">212</FONT> * <a name="line.212"></a>
<FONT color="green">213</FONT> * &lt;p&gt;Any &lt;code&gt;XPath&lt;/code&gt; objects constructed from this factory will use<a name="line.213"></a>
<FONT color="green">214</FONT> * the specified resolver by default.&lt;/p&gt;<a name="line.214"></a>
<FONT color="green">215</FONT> *<a name="line.215"></a>
<FONT color="green">216</FONT> * &lt;p&gt;A &lt;code&gt;NullPointerException&lt;/code&gt; is thrown if <a name="line.216"></a>
<FONT color="green">217</FONT> * &lt;code&gt;resolver&lt;/code&gt; is &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.217"></a>
<FONT color="green">218</FONT> * <a name="line.218"></a>
<FONT color="green">219</FONT> * @param resolver XPath function resolver.<a name="line.219"></a>
<FONT color="green">220</FONT> * <a name="line.220"></a>
<FONT color="green">221</FONT> * @throws NullPointerException If &lt;code&gt;resolver&lt;/code&gt; is <a name="line.221"></a>
<FONT color="green">222</FONT> * &lt;code&gt;null&lt;/code&gt;.<a name="line.222"></a>
<FONT color="green">223</FONT> */<a name="line.223"></a>
<FONT color="green">224</FONT> public void setXPathFunctionResolver(XPathFunctionResolver resolver) {<a name="line.224"></a>
<FONT color="green">225</FONT> <a name="line.225"></a>
<FONT color="green">226</FONT> // resolver cannot be null<a name="line.226"></a>
<FONT color="green">227</FONT> if (resolver == null) {<a name="line.227"></a>
<FONT color="green">228</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.228"></a>
<FONT color="green">229</FONT> XPATHErrorResources.ER_NULL_XPATH_FUNCTION_RESOLVER,<a name="line.229"></a>
<FONT color="green">230</FONT> new Object[] { CLASS_NAME } );<a name="line.230"></a>
<FONT color="green">231</FONT> throw new NullPointerException( fmsg );<a name="line.231"></a>
<FONT color="green">232</FONT> }<a name="line.232"></a>
<FONT color="green">233</FONT> <a name="line.233"></a>
<FONT color="green">234</FONT> xPathFunctionResolver = resolver;<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> * &lt;p&gt;Establish a default variable resolver.&lt;/p&gt;<a name="line.238"></a>
<FONT color="green">239</FONT> *<a name="line.239"></a>
<FONT color="green">240</FONT> * &lt;p&gt;Any &lt;code&gt;XPath&lt;/code&gt; objects constructed from this factory will use<a name="line.240"></a>
<FONT color="green">241</FONT> * the specified resolver by default.&lt;/p&gt;<a name="line.241"></a>
<FONT color="green">242</FONT> * <a name="line.242"></a>
<FONT color="green">243</FONT> * &lt;p&gt;A &lt;code&gt;NullPointerException&lt;/code&gt; is thrown if &lt;code&gt;resolver&lt;/code&gt; is &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.243"></a>
<FONT color="green">244</FONT> * <a name="line.244"></a>
<FONT color="green">245</FONT> * @param resolver Variable resolver.<a name="line.245"></a>
<FONT color="green">246</FONT> * <a name="line.246"></a>
<FONT color="green">247</FONT> * @throws NullPointerException If &lt;code&gt;resolver&lt;/code&gt; is <a name="line.247"></a>
<FONT color="green">248</FONT> * &lt;code&gt;null&lt;/code&gt;.<a name="line.248"></a>
<FONT color="green">249</FONT> */<a name="line.249"></a>
<FONT color="green">250</FONT> public void setXPathVariableResolver(XPathVariableResolver resolver) {<a name="line.250"></a>
<FONT color="green">251</FONT> <a name="line.251"></a>
<FONT color="green">252</FONT> // resolver cannot be null<a name="line.252"></a>
<FONT color="green">253</FONT> if (resolver == null) {<a name="line.253"></a>
<FONT color="green">254</FONT> String fmsg = XSLMessages.createXPATHMessage(<a name="line.254"></a>
<FONT color="green">255</FONT> XPATHErrorResources.ER_NULL_XPATH_VARIABLE_RESOLVER,<a name="line.255"></a>
<FONT color="green">256</FONT> new Object[] { CLASS_NAME } );<a name="line.256"></a>
<FONT color="green">257</FONT> throw new NullPointerException( fmsg );<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> xPathVariableResolver = resolver;<a name="line.260"></a>
<FONT color="green">261</FONT> }<a name="line.261"></a>
<FONT color="green">262</FONT> }<a name="line.262"></a>
<FONT color="green">263</FONT> <a name="line.263"></a>
<FONT color="green">264</FONT> <a name="line.264"></a>
<FONT color="green">265</FONT> <a name="line.265"></a>
</PRE>
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