| /* |
| * 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. |
| * <pre> |
| * <!ELEMENT xsl:param %template;> |
| * <!ATTLIST xsl:param |
| * name %qname; #REQUIRED |
| * select %expr; #IMPLIED |
| * > |
| * </pre> |
| * @see <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a> |
| * @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 <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a> |
| * |
| * @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); |
| } |
| } |
| |
| } |