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Explore the source code of the class JRValueDataset.java

/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2016 TIBCO Software Inc. 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.charts;

import net.sf.jasperreports.engine.JRChartDataset;
import net.sf.jasperreports.engine.JRExpression;


/**
 * This class represents a dataset that consists of a single
 * value.  It is used by Meter and Thermometer charts, which
 * plot a single value against a range.
 * 
 * @author Barry Klawans ([email protected])
 */
public interface JRValueDataset extends JRChartDataset
{
	
	/**
	 * Returns the expression that indicates the value held
	 * by this dataset.
	 * 
	 * @return the expression that indicates the value held by
	 * this dataset
	 */
	public JRExpression getValueExpression();

}