net.sf.jasperreports.crosstabs.fill.JRPercentageCalculator Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 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.crosstabs.fill;
import net.sf.jasperreports.engine.fill.JRCalculable;
/**
* Percentage calculator interface.
*
* Implementing this interface is required for percentage calculations on types
* missing built-in support.
*
* @author Lucian Chirita ([email protected])
* @see net.sf.jasperreports.crosstabs.fill.JRPercentageCalculatorFactory
*/
public interface JRPercentageCalculator
{
/**
* Calculates the percentage of a value out of a total.
*
* @param value the value
* @param total the total
* @return the percentage
*/
public Object calculatePercentage(JRCalculable value, JRCalculable total);
}