/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * $Id: ElemParam.java 468643 2006-10-28 06:56:03Z minchau $ */ package org.apache.xalan.templates; import javax.xml.transform.TransformerException; import org.apache.xalan.transformer.TransformerImpl; import org.apache.xpath.VariableStack; import org.apache.xpath.objects.XObject; /** * Implement xsl:param. *
 * 
 * 
 * 
* @see variables in XSLT Specification * @xsl.usage advanced */ public class ElemParam extends ElemVariable { static final long serialVersionUID = -1131781475589006431L; int m_qnameID; /** * Constructor ElemParam * */ public ElemParam(){} /** * Get an int constant identifying the type of element. * @see org.apache.xalan.templates.Constants * * @return The token ID of the element */ public int getXSLToken() { return Constants.ELEMNAME_PARAMVARIABLE; } /** * Return the node name. * * @return The element's name */ public String getNodeName() { return Constants.ELEMNAME_PARAMVARIABLE_STRING; } /** * Copy constructor. * * @param param Element from an xsl:param * * @throws TransformerException */ public ElemParam(ElemParam param) throws TransformerException { super(param); } /** * This function is called after everything else has been * recomposed, and allows the template to set remaining * values that may be based on some other property that * depends on recomposition. */ public void compose(StylesheetRoot sroot) throws TransformerException { super.compose(sroot); m_qnameID = sroot.getComposeState().getQNameID(m_qname); int parentToken = m_parentNode.getXSLToken(); if (parentToken == Constants.ELEMNAME_TEMPLATE || parentToken == Constants.EXSLT_ELEMNAME_FUNCTION) ((ElemTemplate)m_parentNode).m_inArgsSize++; } /** * Execute a variable declaration and push it onto the variable stack. * @see variables in XSLT Specification * * @param transformer non-null reference to the the current transform-time state. * * @throws TransformerException */ public void execute(TransformerImpl transformer) throws TransformerException { VariableStack vars = transformer.getXPathContext().getVarStack(); if(!vars.isLocalSet(m_index)) { int sourceNode = transformer.getXPathContext().getCurrentNode(); XObject var = getValue(transformer, sourceNode); // transformer.getXPathContext().getVarStack().pushVariable(m_qname, var); transformer.getXPathContext().getVarStack().setLocalVariable(m_index, var); } } }