001/* ======================================================================== 002 * JCommon : a free general purpose class library for the Java(tm) platform 003 * ======================================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jcommon/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * ------------------------------------- 028 * AbstractElementDefinitionHandler.java 029 * ------------------------------------- 030 * (C)opyright 2003-2005, by Thomas Morgner and Contributors. 031 * 032 * Original Author: Thomas Morgner; 033 * Contributor(s): David Gilbert (for Object Refinery Limited); 034 * 035 * $Id: AbstractElementDefinitionHandler.java,v 1.3 2005/10/18 13:25:44 mungady Exp $ 036 * 037 * Changes 038 * ------------------------- 039 * 23.06.2003 : Initial version 040 * 041 */ 042 043package org.jfree.xml; 044 045import org.xml.sax.Attributes; 046import org.xml.sax.SAXException; 047 048/** 049 * An abstract element definition handler. 050 * 051 * @author Thomas Morgner 052 */ 053public abstract class AbstractElementDefinitionHandler implements ElementDefinitionHandler { 054 055 /** A parser. */ 056 private Parser parser; 057 058 /** 059 * Creates a new handler. 060 * 061 * @param parser the parser. 062 */ 063 public AbstractElementDefinitionHandler(final Parser parser) { 064 this.parser = parser; 065 } 066 067 /** 068 * Callback to indicate that an XML element start tag has been read by the parser. 069 * 070 * @param tagName the tag name. 071 * @param attrs the attributes. 072 * 073 * @throws SAXException if a parser error occurs or the validation failed. 074 */ 075 public void startElement(final String tagName, final Attributes attrs) throws SAXException { 076 // nothing required 077 } 078 079 /** 080 * Callback to indicate that some character data has been read. 081 * 082 * @param ch the character array. 083 * @param start the start index for the characters. 084 * @param length the length of the character sequence. 085 * @throws SAXException if a parser error occurs or the validation failed. 086 */ 087 public void characters(final char[] ch, final int start, final int length) throws SAXException { 088 // nothing required 089 } 090 091 /** 092 * Callback to indicate that an XML element end tag has been read by the parser. 093 * 094 * @param tagName the tag name. 095 * 096 * @throws SAXException if a parser error occurs or the validation failed. 097 */ 098 public void endElement(final String tagName) throws SAXException { 099 // nothing required 100 } 101 102 /** 103 * Returns the parser. 104 * 105 * @return The parser. 106 */ 107 public Parser getParser() { 108 return this.parser; 109 } 110}