001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements. See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership. The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the  "License");
007     * you may not use this file except in compliance with the License.
008     * You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    /*
019     * $Id: ElemVariablePsuedo.java 468643 2006-10-28 06:56:03Z minchau $
020     */
021    package org.apache.xalan.templates;
022    
023    import javax.xml.transform.TransformerException;
024    
025    import org.apache.xalan.transformer.TransformerImpl;
026    import org.apache.xpath.XPath;
027    
028    public class ElemVariablePsuedo extends ElemVariable
029    {
030        static final long serialVersionUID = 692295692732588486L;
031      XUnresolvedVariableSimple m_lazyVar;
032            
033      /**
034       * Set the "select" attribute.
035       * If the variable-binding element has a select attribute,
036       * then the value of the attribute must be an expression and
037       * the value of the variable is the object that results from
038       * evaluating the expression. In this case, the content
039       * of the variable must be empty.
040       *
041       * @param v Value to set for the "select" attribute.
042       */
043      public void setSelect(XPath v)
044      {
045        super.setSelect(v);
046        m_lazyVar = new XUnresolvedVariableSimple(this);
047      }
048      
049      /**
050       * Execute a variable declaration and push it onto the variable stack.
051       * @see <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a>
052       *
053       * @param transformer non-null reference to the the current transform-time state.
054       *
055       * @throws TransformerException
056       */
057      public void execute(TransformerImpl transformer) throws TransformerException
058      {
059    
060        // if (TransformerImpl.S_DEBUG)
061        //  transformer.getTraceManager().fireTraceEvent(this);
062    
063        // transformer.getXPathContext().getVarStack().pushVariable(m_qname, var);
064        transformer.getXPathContext().getVarStack().setLocalVariable(m_index, m_lazyVar);
065      }
066    
067    }
068