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 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2016 TIBCO Software Inc. All rights reserved.
 * 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
 * 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.JRCloneable;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRHyperlink;

 * Represents the series for the Pie dataset.
 * @author Teodor Danciu ([email protected])
public interface JRPieSeries extends JRCloneable
	 * @return a java.lang.Comparable object representing 
	 * the categories that will make up the slices in the pie chart.
	public JRExpression getKeyExpression();

	 * @return a numeric expression that produces the values corresponding 
	 * to each category/key in the dataset.
	public JRExpression getValueExpression();

	 * @return the label expression. If this expression is missing, the chart 
	 * will display default labels for each slice in the pie chart. Use this 
	 * expression, which returns java.lang.String values, to customize 
	 * the item labels for the pie chart.
	public JRExpression getLabelExpression();

	 * Returns the hyperlink specification for chart sections.

* The hyperlink will be evaluated for every chart section and an image map will be created for the chart. *

* * @return hyperlink specification for chart sections */ public JRHyperlink getSectionHyperlink(); }

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