19f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 29f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Licensed to the Apache Software Foundation (ASF) under one 39f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or more contributor license agreements. See the NOTICE file 49f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed with this work for additional information 59f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * regarding copyright ownership. The ASF licenses this file 69f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to you under the Apache License, Version 2.0 (the "License"); 79f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you may not use this file except in compliance with the License. 89f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * You may obtain a copy of the License at 99f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Unless required by applicable law or agreed to in writing, software 139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * See the License for the specific language governing permissions and 169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * limitations under the License. 179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * $Id: ElemParam.java 468643 2006-10-28 06:56:03Z minchau $ 209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpackage org.apache.xalan.templates; 229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport javax.xml.transform.TransformerException; 249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.transformer.TransformerImpl; 269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xpath.VariableStack; 279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xpath.objects.XObject; 289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Implement xsl:param. 319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <pre> 329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <!ELEMENT xsl:param %template;> 339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <!ATTLIST xsl:param 349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * name %qname; #REQUIRED 359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * select %expr; #IMPLIED 369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * > 379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * </pre> 389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a> 399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @xsl.usage advanced 409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpublic class ElemParam extends ElemVariable 429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson static final long serialVersionUID = -1131781475589006431L; 449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int m_qnameID; 459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Constructor ElemParam 489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public ElemParam(){} 519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Get an int constant identifying the type of element. 549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.apache.xalan.templates.Constants 559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The token ID of the element 579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public int getXSLToken() 599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return Constants.ELEMNAME_PARAMVARIABLE; 619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return the node name. 659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The element's name 679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String getNodeName() 699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return Constants.ELEMNAME_PARAMVARIABLE_STRING; 719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Copy constructor. 759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param param Element from an xsl:param 779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws TransformerException 799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public ElemParam(ElemParam param) throws TransformerException 819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson super(param); 839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * This function is called after everything else has been 879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * recomposed, and allows the template to set remaining 889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * values that may be based on some other property that 899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * depends on recomposition. 909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void compose(StylesheetRoot sroot) throws TransformerException 929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson super.compose(sroot); 949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_qnameID = sroot.getComposeState().getQNameID(m_qname); 959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int parentToken = m_parentNode.getXSLToken(); 969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (parentToken == Constants.ELEMNAME_TEMPLATE 979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson || parentToken == Constants.EXSLT_ELEMNAME_FUNCTION) 989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ((ElemTemplate)m_parentNode).m_inArgsSize++; 999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Execute a variable declaration and push it onto the variable stack. 1039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a> 1049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param transformer non-null reference to the the current transform-time state. 1069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws TransformerException 1089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void execute(TransformerImpl transformer) throws TransformerException 1109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson VariableStack vars = transformer.getXPathContext().getVarStack(); 1129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(!vars.isLocalSet(m_index)) 1149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int sourceNode = transformer.getXPathContext().getCurrentNode(); 1179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson XObject var = getValue(transformer, sourceNode); 1189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // transformer.getXPathContext().getVarStack().pushVariable(m_qname, var); 1209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson transformer.getXPathContext().getVarStack().setLocalVariable(m_index, var); 1219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 125