| /* |
| * 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: XSLTVisitor.java 468643 2006-10-28 06:56:03Z minchau $ |
| */ |
| package org.apache.xalan.templates; |
| |
| import org.apache.xpath.XPathVisitor; |
| |
| /** |
| * A derivation from this class can be passed to a class that implements |
| * the XSLTVisitable interface, to have the appropriate method called |
| * for each component of an XSLT stylesheet. Aside from possible other uses, |
| * the main intention is to provide a reasonable means to perform expression |
| * rewriting. |
| */ |
| public class XSLTVisitor extends XPathVisitor |
| { |
| /** |
| * Visit an XSLT instruction. Any element that isn't called by one |
| * of the other visit methods, will be called by this method. |
| * |
| * @param elem The xsl instruction element object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitInstruction(ElemTemplateElement elem) |
| { |
| return true; |
| } |
| |
| /** |
| * Visit an XSLT stylesheet instruction. |
| * |
| * @param elem The xsl instruction element object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitStylesheet(ElemTemplateElement elem) |
| { |
| return true; |
| } |
| |
| |
| /** |
| * Visit an XSLT top-level instruction. |
| * |
| * @param elem The xsl instruction element object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitTopLevelInstruction(ElemTemplateElement elem) |
| { |
| return true; |
| } |
| |
| /** |
| * Visit an XSLT top-level instruction. |
| * |
| * @param elem The xsl instruction element object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitTopLevelVariableOrParamDecl(ElemTemplateElement elem) |
| { |
| return true; |
| } |
| |
| |
| /** |
| * Visit an XSLT variable or parameter declaration. |
| * |
| * @param elem The xsl instruction element object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitVariableOrParamDecl(ElemVariable elem) |
| { |
| return true; |
| } |
| |
| /** |
| * Visit a LiteralResultElement. |
| * |
| * @param elem The literal result object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitLiteralResultElement(ElemLiteralResult elem) |
| { |
| return true; |
| } |
| |
| /** |
| * Visit an Attribute Value Template (at the top level). |
| * |
| * @param elem The attribute value template object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitAVT(AVT elem) |
| { |
| return true; |
| } |
| |
| |
| /** |
| * Visit an extension element. |
| * @param elem The extension object. |
| * @return true if the sub expressions should be traversed. |
| */ |
| public boolean visitExtensionElement(ElemExtensionCall elem) |
| { |
| return true; |
| } |
| |
| } |
| |