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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2011 Jaspersoft Corporation. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports 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 JasperReports. If not, see .
 */
package net.sf.jasperreports.engine.xml;

import net.sf.jasperreports.engine.JRGroup;
import net.sf.jasperreports.engine.design.JRDesignChart;
import net.sf.jasperreports.engine.design.JRValidationException;

/**
 * 
 * 
 * @author Lucian Chirita ([email protected])
 * @version $Id: ChartEvaluationGroupReference.java 4595 2011-09-08 15:55:10Z teodord $
 */
// TODO extract an interface for delayed evaluation elements
public class ChartEvaluationGroupReference implements XmlGroupReference
{

	private final JRDesignChart chart;
	
	public ChartEvaluationGroupReference(JRDesignChart chart)
	{
		this.chart = chart;
	}

	public JRGroup getGroupReference()
	{
		return chart.getEvaluationGroup();
	}

	public void assignGroup(JRGroup group)
	{
		chart.setEvaluationGroup(group);
	}

	public void groupNotFound(String groupName) throws JRValidationException
	{
		throw new JRValidationException("Unknown evaluation group '" + groupName + "' for chart.", chart);
	}

}