/**
* ========================================
* JFreeReport : a free Java report library
* ========================================
*
* Project Info: http://reporting.pentaho.org/
*
* (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: GroupReadHandler.java 6659 2008-12-02 15:35:06Z tmorgner $
* ------------
* (C) Copyright 2000-2005, by Object Refinery Limited.
* (C) Copyright 2005-2007, by Pentaho Corporation.
*/
package org.jfree.report.modules.factories.report.flow;
import org.jfree.report.structure.Element;
import org.jfree.report.structure.Group;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
/**
* Creation-Date: 09.04.2006, 15:37:31
*
* @author Thomas Morgner
*/
public class GroupReadHandler extends SectionReadHandler
{
private Group group;
private GroupingExpressionReadHandler groupingExpressionReadHandler;
public GroupReadHandler()
{
group = new Group();
}
/**
* Returns the handler for a child element.
*
* @param tagName the tag name.
* @param atts the attributes.
* @return the handler or null, if the tagname is invalid.
* @throws SAXException if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final Attributes atts)
throws SAXException
{
XmlReadHandler base = super.getHandlerForChild(uri, tagName, atts);
if (base != null)
{
return base;
}
if (FlowReportFactoryModule.NAMESPACE.equals(uri))
{
if ("grouping-expression".equals(tagName))
{
groupingExpressionReadHandler = new GroupingExpressionReadHandler();
return groupingExpressionReadHandler;
}
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
if (groupingExpressionReadHandler == null)
{
throw new ParseException
("Required element 'grouping-expression' is missing.", getLocator());
}
super.doneParsing();
Group group = (Group) getElement();
group.setGroupingExpression(groupingExpressionReadHandler.getExpression());
}
protected Element getElement()
{
return group;
}
}