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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: XRTreeFragSelectWrapper.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.objects;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import org.apache.xalan.res.XSLMessages;<a name="line.23"></a> |
| <FONT color="green">024</FONT> import org.apache.xml.dtm.DTMIterator;<a name="line.24"></a> |
| <FONT color="green">025</FONT> import org.apache.xml.utils.XMLString;<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.XPathContext;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.xpath.res.XPATHErrorResources;<a name="line.28"></a> |
| <FONT color="green">029</FONT> <a name="line.29"></a> |
| <FONT color="green">030</FONT> /**<a name="line.30"></a> |
| <FONT color="green">031</FONT> * This class makes an select statement act like an result tree fragment.<a name="line.31"></a> |
| <FONT color="green">032</FONT> */<a name="line.32"></a> |
| <FONT color="green">033</FONT> public class XRTreeFragSelectWrapper extends XRTreeFrag implements Cloneable<a name="line.33"></a> |
| <FONT color="green">034</FONT> {<a name="line.34"></a> |
| <FONT color="green">035</FONT> static final long serialVersionUID = -6526177905590461251L;<a name="line.35"></a> |
| <FONT color="green">036</FONT> public XRTreeFragSelectWrapper(Expression expr)<a name="line.36"></a> |
| <FONT color="green">037</FONT> {<a name="line.37"></a> |
| <FONT color="green">038</FONT> super(expr);<a name="line.38"></a> |
| <FONT color="green">039</FONT> }<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> * This function is used to fixup variables from QNames to stack frame <a name="line.42"></a> |
| <FONT color="green">043</FONT> * indexes at stylesheet build time.<a name="line.43"></a> |
| <FONT color="green">044</FONT> * @param vars List of QNames that correspond to variables. This list <a name="line.44"></a> |
| <FONT color="green">045</FONT> * should be searched backwards for the first qualified name that <a name="line.45"></a> |
| <FONT color="green">046</FONT> * corresponds to the variable reference qname. The position of the <a name="line.46"></a> |
| <FONT color="green">047</FONT> * QName in the vector from the start of the vector will be its position <a name="line.47"></a> |
| <FONT color="green">048</FONT> * in the stack frame (but variables above the globalsTop value will need <a name="line.48"></a> |
| <FONT color="green">049</FONT> * to be offset to the current stack frame).<a name="line.49"></a> |
| <FONT color="green">050</FONT> */<a name="line.50"></a> |
| <FONT color="green">051</FONT> public void fixupVariables(java.util.Vector vars, int globalsSize)<a name="line.51"></a> |
| <FONT color="green">052</FONT> {<a name="line.52"></a> |
| <FONT color="green">053</FONT> ((Expression)m_obj).fixupVariables(vars, globalsSize);<a name="line.53"></a> |
| <FONT color="green">054</FONT> }<a name="line.54"></a> |
| <FONT color="green">055</FONT> <a name="line.55"></a> |
| <FONT color="green">056</FONT> /**<a name="line.56"></a> |
| <FONT color="green">057</FONT> * For support of literal objects in xpaths.<a name="line.57"></a> |
| <FONT color="green">058</FONT> *<a name="line.58"></a> |
| <FONT color="green">059</FONT> * @param xctxt The XPath execution context.<a name="line.59"></a> |
| <FONT color="green">060</FONT> *<a name="line.60"></a> |
| <FONT color="green">061</FONT> * @return the result of executing the select expression<a name="line.61"></a> |
| <FONT color="green">062</FONT> *<a name="line.62"></a> |
| <FONT color="green">063</FONT> * @throws javax.xml.transform.TransformerException<a name="line.63"></a> |
| <FONT color="green">064</FONT> */<a name="line.64"></a> |
| <FONT color="green">065</FONT> public XObject execute(XPathContext xctxt)<a name="line.65"></a> |
| <FONT color="green">066</FONT> throws javax.xml.transform.TransformerException<a name="line.66"></a> |
| <FONT color="green">067</FONT> {<a name="line.67"></a> |
| <FONT color="green">068</FONT> XObject m_selected;<a name="line.68"></a> |
| <FONT color="green">069</FONT> m_selected = ((Expression)m_obj).execute(xctxt);<a name="line.69"></a> |
| <FONT color="green">070</FONT> m_selected.allowDetachToRelease(m_allowRelease);<a name="line.70"></a> |
| <FONT color="green">071</FONT> if (m_selected.getType() == CLASS_STRING)<a name="line.71"></a> |
| <FONT color="green">072</FONT> return m_selected;<a name="line.72"></a> |
| <FONT color="green">073</FONT> else<a name="line.73"></a> |
| <FONT color="green">074</FONT> return new XString(m_selected.str());<a name="line.74"></a> |
| <FONT color="green">075</FONT> }<a name="line.75"></a> |
| <FONT color="green">076</FONT> <a name="line.76"></a> |
| <FONT color="green">077</FONT> /**<a name="line.77"></a> |
| <FONT color="green">078</FONT> * Detaches the <code>DTMIterator</code> from the set which it iterated<a name="line.78"></a> |
| <FONT color="green">079</FONT> * over, releasing any computational resources and placing the iterator<a name="line.79"></a> |
| <FONT color="green">080</FONT> * in the INVALID state. After <code>detach</code> has been invoked,<a name="line.80"></a> |
| <FONT color="green">081</FONT> * calls to <code>nextNode</code> or <code>previousNode</code> will<a name="line.81"></a> |
| <FONT color="green">082</FONT> * raise a runtime exception.<a name="line.82"></a> |
| <FONT color="green">083</FONT> * <a name="line.83"></a> |
| <FONT color="green">084</FONT> * In general, detach should only be called once on the object.<a name="line.84"></a> |
| <FONT color="green">085</FONT> */<a name="line.85"></a> |
| <FONT color="green">086</FONT> public void detach()<a name="line.86"></a> |
| <FONT color="green">087</FONT> {<a name="line.87"></a> |
| <FONT color="green">088</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_DETACH_NOT_SUPPORTED_XRTREEFRAGSELECTWRAPPER, null)); //"detach() not supported by XRTreeFragSelectWrapper!");<a name="line.88"></a> |
| <FONT color="green">089</FONT> }<a name="line.89"></a> |
| <FONT color="green">090</FONT> <a name="line.90"></a> |
| <FONT color="green">091</FONT> /**<a name="line.91"></a> |
| <FONT color="green">092</FONT> * Cast result object to a number.<a name="line.92"></a> |
| <FONT color="green">093</FONT> *<a name="line.93"></a> |
| <FONT color="green">094</FONT> * @return The result tree fragment as a number or NaN<a name="line.94"></a> |
| <FONT color="green">095</FONT> */<a name="line.95"></a> |
| <FONT color="green">096</FONT> public double num()<a name="line.96"></a> |
| <FONT color="green">097</FONT> throws javax.xml.transform.TransformerException<a name="line.97"></a> |
| <FONT color="green">098</FONT> {<a name="line.98"></a> |
| <FONT color="green">099</FONT> <a name="line.99"></a> |
| <FONT color="green">100</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NUM_NOT_SUPPORTED_XRTREEFRAGSELECTWRAPPER, null)); //"num() not supported by XRTreeFragSelectWrapper!");<a name="line.100"></a> |
| <FONT color="green">101</FONT> }<a name="line.101"></a> |
| <FONT color="green">102</FONT> <a name="line.102"></a> |
| <FONT color="green">103</FONT> <a name="line.103"></a> |
| <FONT color="green">104</FONT> /**<a name="line.104"></a> |
| <FONT color="green">105</FONT> * Cast result object to an XMLString.<a name="line.105"></a> |
| <FONT color="green">106</FONT> *<a name="line.106"></a> |
| <FONT color="green">107</FONT> * @return The document fragment node data or the empty string. <a name="line.107"></a> |
| <FONT color="green">108</FONT> */<a name="line.108"></a> |
| <FONT color="green">109</FONT> public XMLString xstr()<a name="line.109"></a> |
| <FONT color="green">110</FONT> {<a name="line.110"></a> |
| <FONT color="green">111</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_XSTR_NOT_SUPPORTED_XRTREEFRAGSELECTWRAPPER, null)); //"xstr() not supported by XRTreeFragSelectWrapper!");<a name="line.111"></a> |
| <FONT color="green">112</FONT> }<a name="line.112"></a> |
| <FONT color="green">113</FONT> <a name="line.113"></a> |
| <FONT color="green">114</FONT> /**<a name="line.114"></a> |
| <FONT color="green">115</FONT> * Cast result object to a string.<a name="line.115"></a> |
| <FONT color="green">116</FONT> *<a name="line.116"></a> |
| <FONT color="green">117</FONT> * @return The document fragment node data or the empty string. <a name="line.117"></a> |
| <FONT color="green">118</FONT> */<a name="line.118"></a> |
| <FONT color="green">119</FONT> public String str()<a name="line.119"></a> |
| <FONT color="green">120</FONT> {<a name="line.120"></a> |
| <FONT color="green">121</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_STR_NOT_SUPPORTED_XRTREEFRAGSELECTWRAPPER, null)); //"str() not supported by XRTreeFragSelectWrapper!");<a name="line.121"></a> |
| <FONT color="green">122</FONT> }<a name="line.122"></a> |
| <FONT color="green">123</FONT> <a name="line.123"></a> |
| <FONT color="green">124</FONT> /**<a name="line.124"></a> |
| <FONT color="green">125</FONT> * Tell what kind of class this is.<a name="line.125"></a> |
| <FONT color="green">126</FONT> *<a name="line.126"></a> |
| <FONT color="green">127</FONT> * @return the string type<a name="line.127"></a> |
| <FONT color="green">128</FONT> */<a name="line.128"></a> |
| <FONT color="green">129</FONT> public int getType()<a name="line.129"></a> |
| <FONT color="green">130</FONT> {<a name="line.130"></a> |
| <FONT color="green">131</FONT> return CLASS_STRING;<a name="line.131"></a> |
| <FONT color="green">132</FONT> }<a name="line.132"></a> |
| <FONT color="green">133</FONT> <a name="line.133"></a> |
| <FONT color="green">134</FONT> /**<a name="line.134"></a> |
| <FONT color="green">135</FONT> * Cast result object to a result tree fragment.<a name="line.135"></a> |
| <FONT color="green">136</FONT> *<a name="line.136"></a> |
| <FONT color="green">137</FONT> * @return The document fragment this wraps<a name="line.137"></a> |
| <FONT color="green">138</FONT> */<a name="line.138"></a> |
| <FONT color="green">139</FONT> public int rtf()<a name="line.139"></a> |
| <FONT color="green">140</FONT> {<a name="line.140"></a> |
| <FONT color="green">141</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_RTF_NOT_SUPPORTED_XRTREEFRAGSELECTWRAPPER, null)); //"rtf() not supported by XRTreeFragSelectWrapper!");<a name="line.141"></a> |
| <FONT color="green">142</FONT> }<a name="line.142"></a> |
| <FONT color="green">143</FONT> <a name="line.143"></a> |
| <FONT color="green">144</FONT> /**<a name="line.144"></a> |
| <FONT color="green">145</FONT> * Cast result object to a DTMIterator.<a name="line.145"></a> |
| <FONT color="green">146</FONT> *<a name="line.146"></a> |
| <FONT color="green">147</FONT> * @return The document fragment as a DTMIterator<a name="line.147"></a> |
| <FONT color="green">148</FONT> */<a name="line.148"></a> |
| <FONT color="green">149</FONT> public DTMIterator asNodeIterator()<a name="line.149"></a> |
| <FONT color="green">150</FONT> {<a name="line.150"></a> |
| <FONT color="green">151</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_RTF_NOT_SUPPORTED_XRTREEFRAGSELECTWRAPPER, null)); //"asNodeIterator() not supported by XRTreeFragSelectWrapper!");<a name="line.151"></a> |
| <FONT color="green">152</FONT> }<a name="line.152"></a> |
| <FONT color="green">153</FONT> <a name="line.153"></a> |
| <FONT color="green">154</FONT> }<a name="line.154"></a> |
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| </PRE> |
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