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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: FilterExprIteratorSimple.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.axes;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import org.apache.xml.dtm.Axis;<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.utils.PrefixResolver;<a name="line.25"></a>
<FONT color="green">026</FONT>    import org.apache.xpath.Expression;<a name="line.26"></a>
<FONT color="green">027</FONT>    import org.apache.xpath.ExpressionOwner;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.xpath.VariableStack;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.apache.xpath.XPathContext;<a name="line.29"></a>
<FONT color="green">030</FONT>    import org.apache.xpath.XPathVisitor;<a name="line.30"></a>
<FONT color="green">031</FONT>    import org.apache.xpath.objects.XNodeSet;<a name="line.31"></a>
<FONT color="green">032</FONT>    <a name="line.32"></a>
<FONT color="green">033</FONT>    /**<a name="line.33"></a>
<FONT color="green">034</FONT>     * Class to use for one-step iteration that doesn't have a predicate, and <a name="line.34"></a>
<FONT color="green">035</FONT>     * doesn't need to set the context.<a name="line.35"></a>
<FONT color="green">036</FONT>     */<a name="line.36"></a>
<FONT color="green">037</FONT>    public class FilterExprIteratorSimple extends LocPathIterator<a name="line.37"></a>
<FONT color="green">038</FONT>    {<a name="line.38"></a>
<FONT color="green">039</FONT>        static final long serialVersionUID = -6978977187025375579L;<a name="line.39"></a>
<FONT color="green">040</FONT>      /** The contained expression. Should be non-null.<a name="line.40"></a>
<FONT color="green">041</FONT>       *  @serial   */<a name="line.41"></a>
<FONT color="green">042</FONT>      private Expression m_expr;<a name="line.42"></a>
<FONT color="green">043</FONT>    <a name="line.43"></a>
<FONT color="green">044</FONT>      /** The result of executing m_expr.  Needs to be deep cloned on clone op.  */<a name="line.44"></a>
<FONT color="green">045</FONT>      transient private XNodeSet m_exprObj;<a name="line.45"></a>
<FONT color="green">046</FONT>    <a name="line.46"></a>
<FONT color="green">047</FONT>      private boolean m_mustHardReset = false;<a name="line.47"></a>
<FONT color="green">048</FONT>      private boolean m_canDetachNodeset = true;<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>      /**<a name="line.50"></a>
<FONT color="green">051</FONT>       * Create a FilterExprIteratorSimple object.<a name="line.51"></a>
<FONT color="green">052</FONT>       *<a name="line.52"></a>
<FONT color="green">053</FONT>       */<a name="line.53"></a>
<FONT color="green">054</FONT>      public FilterExprIteratorSimple()<a name="line.54"></a>
<FONT color="green">055</FONT>      {<a name="line.55"></a>
<FONT color="green">056</FONT>        super(null);<a name="line.56"></a>
<FONT color="green">057</FONT>      }<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>       * Create a FilterExprIteratorSimple object.<a name="line.60"></a>
<FONT color="green">061</FONT>       *<a name="line.61"></a>
<FONT color="green">062</FONT>       */<a name="line.62"></a>
<FONT color="green">063</FONT>      public FilterExprIteratorSimple(Expression expr)<a name="line.63"></a>
<FONT color="green">064</FONT>      {<a name="line.64"></a>
<FONT color="green">065</FONT>        super(null);<a name="line.65"></a>
<FONT color="green">066</FONT>        m_expr = expr;<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>      /**<a name="line.69"></a>
<FONT color="green">070</FONT>       * Initialize the context values for this expression<a name="line.70"></a>
<FONT color="green">071</FONT>       * after it is cloned.<a name="line.71"></a>
<FONT color="green">072</FONT>       *<a name="line.72"></a>
<FONT color="green">073</FONT>       * @param context The XPath runtime context for this<a name="line.73"></a>
<FONT color="green">074</FONT>       * transformation.<a name="line.74"></a>
<FONT color="green">075</FONT>       */<a name="line.75"></a>
<FONT color="green">076</FONT>      public void setRoot(int context, Object environment)<a name="line.76"></a>
<FONT color="green">077</FONT>      {<a name="line.77"></a>
<FONT color="green">078</FONT>            super.setRoot(context, environment);<a name="line.78"></a>
<FONT color="green">079</FONT>            m_exprObj = executeFilterExpr(context, m_execContext, getPrefixResolver(), <a name="line.79"></a>
<FONT color="green">080</FONT>                              getIsTopLevel(), m_stackFrame, m_expr);<a name="line.80"></a>
<FONT color="green">081</FONT>      }<a name="line.81"></a>
<FONT color="green">082</FONT>    <a name="line.82"></a>
<FONT color="green">083</FONT>      /**<a name="line.83"></a>
<FONT color="green">084</FONT>       * Execute the expression.  Meant for reuse by other FilterExpr iterators <a name="line.84"></a>
<FONT color="green">085</FONT>       * that are not derived from this object.<a name="line.85"></a>
<FONT color="green">086</FONT>       */<a name="line.86"></a>
<FONT color="green">087</FONT>      public static XNodeSet executeFilterExpr(int context, XPathContext xctxt, <a name="line.87"></a>
<FONT color="green">088</FONT>                                                                                                    PrefixResolver prefixResolver,<a name="line.88"></a>
<FONT color="green">089</FONT>                                                                                                    boolean isTopLevel,<a name="line.89"></a>
<FONT color="green">090</FONT>                                                                                                    int stackFrame,<a name="line.90"></a>
<FONT color="green">091</FONT>                                                                                                    Expression expr )<a name="line.91"></a>
<FONT color="green">092</FONT>        throws org.apache.xml.utils.WrappedRuntimeException<a name="line.92"></a>
<FONT color="green">093</FONT>      {<a name="line.93"></a>
<FONT color="green">094</FONT>        PrefixResolver savedResolver = xctxt.getNamespaceContext();<a name="line.94"></a>
<FONT color="green">095</FONT>        XNodeSet result = null;<a name="line.95"></a>
<FONT color="green">096</FONT>    <a name="line.96"></a>
<FONT color="green">097</FONT>        try<a name="line.97"></a>
<FONT color="green">098</FONT>        {<a name="line.98"></a>
<FONT color="green">099</FONT>          xctxt.pushCurrentNode(context);<a name="line.99"></a>
<FONT color="green">100</FONT>          xctxt.setNamespaceContext(prefixResolver);<a name="line.100"></a>
<FONT color="green">101</FONT>    <a name="line.101"></a>
<FONT color="green">102</FONT>          // The setRoot operation can take place with a reset operation, <a name="line.102"></a>
<FONT color="green">103</FONT>          // and so we may not be in the context of LocPathIterator#nextNode, <a name="line.103"></a>
<FONT color="green">104</FONT>          // so we have to set up the variable context, execute the expression, <a name="line.104"></a>
<FONT color="green">105</FONT>          // and then restore the variable context.<a name="line.105"></a>
<FONT color="green">106</FONT>    <a name="line.106"></a>
<FONT color="green">107</FONT>          if (isTopLevel)<a name="line.107"></a>
<FONT color="green">108</FONT>          {<a name="line.108"></a>
<FONT color="green">109</FONT>            // System.out.println("calling m_expr.execute(getXPathContext())");<a name="line.109"></a>
<FONT color="green">110</FONT>            VariableStack vars = xctxt.getVarStack();<a name="line.110"></a>
<FONT color="green">111</FONT>    <a name="line.111"></a>
<FONT color="green">112</FONT>            // These three statements need to be combined into one operation.<a name="line.112"></a>
<FONT color="green">113</FONT>            int savedStart = vars.getStackFrame();<a name="line.113"></a>
<FONT color="green">114</FONT>            vars.setStackFrame(stackFrame);<a name="line.114"></a>
<FONT color="green">115</FONT>    <a name="line.115"></a>
<FONT color="green">116</FONT>            result = (org.apache.xpath.objects.XNodeSet) expr.execute(xctxt);<a name="line.116"></a>
<FONT color="green">117</FONT>            result.setShouldCacheNodes(true);<a name="line.117"></a>
<FONT color="green">118</FONT>    <a name="line.118"></a>
<FONT color="green">119</FONT>            // These two statements need to be combined into one operation.<a name="line.119"></a>
<FONT color="green">120</FONT>            vars.setStackFrame(savedStart);<a name="line.120"></a>
<FONT color="green">121</FONT>          }<a name="line.121"></a>
<FONT color="green">122</FONT>          else<a name="line.122"></a>
<FONT color="green">123</FONT>              result = (org.apache.xpath.objects.XNodeSet) expr.execute(xctxt);<a name="line.123"></a>
<FONT color="green">124</FONT>    <a name="line.124"></a>
<FONT color="green">125</FONT>        }<a name="line.125"></a>
<FONT color="green">126</FONT>        catch (javax.xml.transform.TransformerException se)<a name="line.126"></a>
<FONT color="green">127</FONT>        {<a name="line.127"></a>
<FONT color="green">128</FONT>    <a name="line.128"></a>
<FONT color="green">129</FONT>          // TODO: Fix...<a name="line.129"></a>
<FONT color="green">130</FONT>          throw new org.apache.xml.utils.WrappedRuntimeException(se);<a name="line.130"></a>
<FONT color="green">131</FONT>        }<a name="line.131"></a>
<FONT color="green">132</FONT>        finally<a name="line.132"></a>
<FONT color="green">133</FONT>        {<a name="line.133"></a>
<FONT color="green">134</FONT>          xctxt.popCurrentNode();<a name="line.134"></a>
<FONT color="green">135</FONT>          xctxt.setNamespaceContext(savedResolver);<a name="line.135"></a>
<FONT color="green">136</FONT>        }<a name="line.136"></a>
<FONT color="green">137</FONT>        return result;<a name="line.137"></a>
<FONT color="green">138</FONT>      }<a name="line.138"></a>
<FONT color="green">139</FONT>      <a name="line.139"></a>
<FONT color="green">140</FONT>      /**<a name="line.140"></a>
<FONT color="green">141</FONT>       *  Returns the next node in the set and advances the position of the<a name="line.141"></a>
<FONT color="green">142</FONT>       * iterator in the set. After a NodeIterator is created, the first call<a name="line.142"></a>
<FONT color="green">143</FONT>       * to nextNode() returns the first node in the set.<a name="line.143"></a>
<FONT color="green">144</FONT>       *<a name="line.144"></a>
<FONT color="green">145</FONT>       * @return  The next &lt;code&gt;Node&lt;/code&gt; in the set being iterated over, or<a name="line.145"></a>
<FONT color="green">146</FONT>       *   &lt;code&gt;null&lt;/code&gt; if there are no more members in that set.<a name="line.146"></a>
<FONT color="green">147</FONT>       */<a name="line.147"></a>
<FONT color="green">148</FONT>      public int nextNode()<a name="line.148"></a>
<FONT color="green">149</FONT>      {<a name="line.149"></a>
<FONT color="green">150</FONT>            if(m_foundLast)<a name="line.150"></a>
<FONT color="green">151</FONT>                    return DTM.NULL;<a name="line.151"></a>
<FONT color="green">152</FONT>    <a name="line.152"></a>
<FONT color="green">153</FONT>        int next;<a name="line.153"></a>
<FONT color="green">154</FONT>    <a name="line.154"></a>
<FONT color="green">155</FONT>        if (null != m_exprObj)<a name="line.155"></a>
<FONT color="green">156</FONT>        {<a name="line.156"></a>
<FONT color="green">157</FONT>          m_lastFetched = next = m_exprObj.nextNode();<a name="line.157"></a>
<FONT color="green">158</FONT>        }<a name="line.158"></a>
<FONT color="green">159</FONT>        else<a name="line.159"></a>
<FONT color="green">160</FONT>          m_lastFetched = next = DTM.NULL;<a name="line.160"></a>
<FONT color="green">161</FONT>    <a name="line.161"></a>
<FONT color="green">162</FONT>        // m_lastFetched = next;<a name="line.162"></a>
<FONT color="green">163</FONT>        if (DTM.NULL != next)<a name="line.163"></a>
<FONT color="green">164</FONT>        {<a name="line.164"></a>
<FONT color="green">165</FONT>          m_pos++;<a name="line.165"></a>
<FONT color="green">166</FONT>          return next;<a name="line.166"></a>
<FONT color="green">167</FONT>        }<a name="line.167"></a>
<FONT color="green">168</FONT>        else<a name="line.168"></a>
<FONT color="green">169</FONT>        {<a name="line.169"></a>
<FONT color="green">170</FONT>          m_foundLast = true;<a name="line.170"></a>
<FONT color="green">171</FONT>    <a name="line.171"></a>
<FONT color="green">172</FONT>          return DTM.NULL;<a name="line.172"></a>
<FONT color="green">173</FONT>        }<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>       * Detaches the walker from the set which it iterated over, releasing<a name="line.177"></a>
<FONT color="green">178</FONT>       * any computational resources and placing the iterator in the INVALID<a name="line.178"></a>
<FONT color="green">179</FONT>       * state.<a name="line.179"></a>
<FONT color="green">180</FONT>       */<a name="line.180"></a>
<FONT color="green">181</FONT>      public void detach()<a name="line.181"></a>
<FONT color="green">182</FONT>      {  <a name="line.182"></a>
<FONT color="green">183</FONT>        if(m_allowDetach)<a name="line.183"></a>
<FONT color="green">184</FONT>        {<a name="line.184"></a>
<FONT color="green">185</FONT>                    super.detach();<a name="line.185"></a>
<FONT color="green">186</FONT>                    m_exprObj.detach();<a name="line.186"></a>
<FONT color="green">187</FONT>                    m_exprObj = null;<a name="line.187"></a>
<FONT color="green">188</FONT>        }<a name="line.188"></a>
<FONT color="green">189</FONT>      }<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>       * This function is used to fixup variables from QNames to stack frame <a name="line.192"></a>
<FONT color="green">193</FONT>       * indexes at stylesheet build time.<a name="line.193"></a>
<FONT color="green">194</FONT>       * @param vars List of QNames that correspond to variables.  This list <a name="line.194"></a>
<FONT color="green">195</FONT>       * should be searched backwards for the first qualified name that <a name="line.195"></a>
<FONT color="green">196</FONT>       * corresponds to the variable reference qname.  The position of the <a name="line.196"></a>
<FONT color="green">197</FONT>       * QName in the vector from the start of the vector will be its position <a name="line.197"></a>
<FONT color="green">198</FONT>       * in the stack frame (but variables above the globalsTop value will need <a name="line.198"></a>
<FONT color="green">199</FONT>       * to be offset to the current stack frame).<a name="line.199"></a>
<FONT color="green">200</FONT>       */<a name="line.200"></a>
<FONT color="green">201</FONT>      public void fixupVariables(java.util.Vector vars, int globalsSize)<a name="line.201"></a>
<FONT color="green">202</FONT>      {<a name="line.202"></a>
<FONT color="green">203</FONT>        super.fixupVariables(vars, globalsSize);<a name="line.203"></a>
<FONT color="green">204</FONT>        m_expr.fixupVariables(vars, globalsSize);<a name="line.204"></a>
<FONT color="green">205</FONT>      }<a name="line.205"></a>
<FONT color="green">206</FONT>    <a name="line.206"></a>
<FONT color="green">207</FONT>      /**<a name="line.207"></a>
<FONT color="green">208</FONT>       * Get the inner contained expression of this filter.<a name="line.208"></a>
<FONT color="green">209</FONT>       */<a name="line.209"></a>
<FONT color="green">210</FONT>      public Expression getInnerExpression()<a name="line.210"></a>
<FONT color="green">211</FONT>      {<a name="line.211"></a>
<FONT color="green">212</FONT>        return m_expr;<a name="line.212"></a>
<FONT color="green">213</FONT>      }<a name="line.213"></a>
<FONT color="green">214</FONT>    <a name="line.214"></a>
<FONT color="green">215</FONT>      /**<a name="line.215"></a>
<FONT color="green">216</FONT>       * Set the inner contained expression of this filter.<a name="line.216"></a>
<FONT color="green">217</FONT>       */<a name="line.217"></a>
<FONT color="green">218</FONT>      public void setInnerExpression(Expression expr)<a name="line.218"></a>
<FONT color="green">219</FONT>      {<a name="line.219"></a>
<FONT color="green">220</FONT>        expr.exprSetParent(this);<a name="line.220"></a>
<FONT color="green">221</FONT>        m_expr = expr;<a name="line.221"></a>
<FONT color="green">222</FONT>      }<a name="line.222"></a>
<FONT color="green">223</FONT>    <a name="line.223"></a>
<FONT color="green">224</FONT>      /** <a name="line.224"></a>
<FONT color="green">225</FONT>       * Get the analysis bits for this walker, as defined in the WalkerFactory.<a name="line.225"></a>
<FONT color="green">226</FONT>       * @return One of WalkerFactory#BIT_DESCENDANT, etc.<a name="line.226"></a>
<FONT color="green">227</FONT>       */<a name="line.227"></a>
<FONT color="green">228</FONT>      public int getAnalysisBits()<a name="line.228"></a>
<FONT color="green">229</FONT>      {<a name="line.229"></a>
<FONT color="green">230</FONT>        if (null != m_expr &amp;&amp; m_expr instanceof PathComponent)<a name="line.230"></a>
<FONT color="green">231</FONT>        {<a name="line.231"></a>
<FONT color="green">232</FONT>          return ((PathComponent) m_expr).getAnalysisBits();<a name="line.232"></a>
<FONT color="green">233</FONT>        }<a name="line.233"></a>
<FONT color="green">234</FONT>        return WalkerFactory.BIT_FILTER;<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>       * Returns true if all the nodes in the iteration well be returned in document <a name="line.238"></a>
<FONT color="green">239</FONT>       * order.<a name="line.239"></a>
<FONT color="green">240</FONT>       * Warning: This can only be called after setRoot has been called!<a name="line.240"></a>
<FONT color="green">241</FONT>       * <a name="line.241"></a>
<FONT color="green">242</FONT>       * @return true as a default.<a name="line.242"></a>
<FONT color="green">243</FONT>       */<a name="line.243"></a>
<FONT color="green">244</FONT>      public boolean isDocOrdered()<a name="line.244"></a>
<FONT color="green">245</FONT>      {<a name="line.245"></a>
<FONT color="green">246</FONT>        return m_exprObj.isDocOrdered();<a name="line.246"></a>
<FONT color="green">247</FONT>      }<a name="line.247"></a>
<FONT color="green">248</FONT>    <a name="line.248"></a>
<FONT color="green">249</FONT>      class filterExprOwner implements ExpressionOwner<a name="line.249"></a>
<FONT color="green">250</FONT>      {<a name="line.250"></a>
<FONT color="green">251</FONT>        /**<a name="line.251"></a>
<FONT color="green">252</FONT>        * @see ExpressionOwner#getExpression()<a name="line.252"></a>
<FONT color="green">253</FONT>        */<a name="line.253"></a>
<FONT color="green">254</FONT>        public Expression getExpression()<a name="line.254"></a>
<FONT color="green">255</FONT>        {<a name="line.255"></a>
<FONT color="green">256</FONT>          return m_expr;<a name="line.256"></a>
<FONT color="green">257</FONT>        }<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>         * @see ExpressionOwner#setExpression(Expression)<a name="line.260"></a>
<FONT color="green">261</FONT>         */<a name="line.261"></a>
<FONT color="green">262</FONT>        public void setExpression(Expression exp)<a name="line.262"></a>
<FONT color="green">263</FONT>        {<a name="line.263"></a>
<FONT color="green">264</FONT>          exp.exprSetParent(FilterExprIteratorSimple.this);<a name="line.264"></a>
<FONT color="green">265</FONT>          m_expr = exp;<a name="line.265"></a>
<FONT color="green">266</FONT>        }<a name="line.266"></a>
<FONT color="green">267</FONT>    <a name="line.267"></a>
<FONT color="green">268</FONT>      }<a name="line.268"></a>
<FONT color="green">269</FONT>    <a name="line.269"></a>
<FONT color="green">270</FONT>      /**<a name="line.270"></a>
<FONT color="green">271</FONT>       * This will traverse the heararchy, calling the visitor for <a name="line.271"></a>
<FONT color="green">272</FONT>       * each member.  If the called visitor method returns <a name="line.272"></a>
<FONT color="green">273</FONT>       * false, the subtree should not be called.<a name="line.273"></a>
<FONT color="green">274</FONT>       * <a name="line.274"></a>
<FONT color="green">275</FONT>       * @param visitor The visitor whose appropriate method will be called.<a name="line.275"></a>
<FONT color="green">276</FONT>       */<a name="line.276"></a>
<FONT color="green">277</FONT>      public void callPredicateVisitors(XPathVisitor visitor)<a name="line.277"></a>
<FONT color="green">278</FONT>      {<a name="line.278"></a>
<FONT color="green">279</FONT>        m_expr.callVisitors(new filterExprOwner(), visitor);<a name="line.279"></a>
<FONT color="green">280</FONT>    <a name="line.280"></a>
<FONT color="green">281</FONT>        super.callPredicateVisitors(visitor);<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>       * @see Expression#deepEquals(Expression)<a name="line.285"></a>
<FONT color="green">286</FONT>       */<a name="line.286"></a>
<FONT color="green">287</FONT>      public boolean deepEquals(Expression expr)<a name="line.287"></a>
<FONT color="green">288</FONT>      {<a name="line.288"></a>
<FONT color="green">289</FONT>        if (!super.deepEquals(expr))<a name="line.289"></a>
<FONT color="green">290</FONT>          return false;<a name="line.290"></a>
<FONT color="green">291</FONT>    <a name="line.291"></a>
<FONT color="green">292</FONT>        FilterExprIteratorSimple fet = (FilterExprIteratorSimple) expr;<a name="line.292"></a>
<FONT color="green">293</FONT>        if (!m_expr.deepEquals(fet.m_expr))<a name="line.293"></a>
<FONT color="green">294</FONT>          return false;<a name="line.294"></a>
<FONT color="green">295</FONT>    <a name="line.295"></a>
<FONT color="green">296</FONT>        return true;<a name="line.296"></a>
<FONT color="green">297</FONT>      }<a name="line.297"></a>
<FONT color="green">298</FONT>      <a name="line.298"></a>
<FONT color="green">299</FONT>      /**<a name="line.299"></a>
<FONT color="green">300</FONT>       * Returns the axis being iterated, if it is known.<a name="line.300"></a>
<FONT color="green">301</FONT>       * <a name="line.301"></a>
<FONT color="green">302</FONT>       * @return Axis.CHILD, etc., or -1 if the axis is not known or is of multiple <a name="line.302"></a>
<FONT color="green">303</FONT>       * types.<a name="line.303"></a>
<FONT color="green">304</FONT>       */<a name="line.304"></a>
<FONT color="green">305</FONT>      public int getAxis()<a name="line.305"></a>
<FONT color="green">306</FONT>      {<a name="line.306"></a>
<FONT color="green">307</FONT>            if(null != m_exprObj)<a name="line.307"></a>
<FONT color="green">308</FONT>            return m_exprObj.getAxis();<a name="line.308"></a>
<FONT color="green">309</FONT>        else<a name="line.309"></a>
<FONT color="green">310</FONT>            return Axis.FILTEREDLIST;<a name="line.310"></a>
<FONT color="green">311</FONT>      }<a name="line.311"></a>
<FONT color="green">312</FONT>    <a name="line.312"></a>
<FONT color="green">313</FONT>    <a name="line.313"></a>
<FONT color="green">314</FONT>    }<a name="line.314"></a>
<FONT color="green">315</FONT>    <a name="line.315"></a>


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