001 /**
002 * ========================================
003 * JFreeReport : a free Java report library
004 * ========================================
005 *
006 * Project Info: http://reporting.pentaho.org/
007 *
008 * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
009 *
010 * This library is free software; you can redistribute it and/or modify it under the terms
011 * of the GNU Lesser General Public License as published by the Free Software Foundation;
012 * either version 2.1 of the License, or (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016 * See the GNU Lesser General Public License for more details.
017 *
018 * You should have received a copy of the GNU Lesser General Public License along with this
019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020 * Boston, MA 02111-1307, USA.
021 *
022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023 * in the United States and other countries.]
024 *
025 * ------------
026 * $Id: ExpressionReadHandler.java,v 1.4 2007/04/01 18:49:27 taqua Exp $
027 * ------------
028 * (C) Copyright 2000-2005, by Object Refinery Limited.
029 * (C) Copyright 2005-2007, by Pentaho Corporation.
030 */
031 package org.jfree.report.modules.factories.report.flow;
032
033 import org.jfree.xmlns.parser.StringReadHandler;
034 import org.jfree.xmlns.parser.XmlReadHandler;
035 import org.xml.sax.Attributes;
036 import org.xml.sax.SAXException;
037
038 /**
039 * Creation-Date: 09.04.2006, 13:40:08
040 *
041 * @author Thomas Morgner
042 */
043 public class ExpressionReadHandler extends AbstractExpressionReadHandler
044 {
045 private StringReadHandler nameReadHandler;
046
047 public ExpressionReadHandler()
048 {
049 }
050
051 /**
052 * Returns the handler for a child element.
053 *
054 * @param tagName the tag name.
055 * @param atts the attributes.
056 * @return the handler or null, if the tagname is invalid.
057 * @throws SAXException if there is a parsing error.
058 * @throws XmlReaderException if there is a reader error.
059 */
060 protected XmlReadHandler getHandlerForChild(final String uri,
061 final String tagName,
062 final Attributes atts)
063 throws SAXException
064 {
065 if (isSameNamespace(uri) == false)
066 {
067 return null;
068 }
069 if (tagName.equals("name"))
070 {
071 nameReadHandler = new StringReadHandler();
072 return nameReadHandler;
073 }
074 return super.getHandlerForChild(uri, tagName, atts);
075 }
076
077 /**
078 * Done parsing.
079 *
080 * @throws SAXException if there is a parsing error.
081 * @throws XmlReaderException if there is a reader error.
082 */
083 protected void doneParsing() throws SAXException
084 {
085 super.doneParsing();
086 if (nameReadHandler != null)
087 {
088 getExpression().setName(nameReadHandler.getResult());
089 }
090 }
091 }