net.sf.jasperreports.engine.fill.JRAbstractExtendedIncrementer 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.engine.fill;
import net.sf.jasperreports.engine.JRException;
/**
* Base class for extended incrementers.
*
* @author Lucian Chirita ([email protected])
*/
public abstract class JRAbstractExtendedIncrementer implements JRExtendedIncrementer
{
/**
* This implementation simply calls {@link JRExtendedIncrementer#increment(JRCalculable, Object, AbstractValueProvider) increment(JRCalculable, Object, AbstractValueProvider)}.
*/
@Override
public Object increment(JRFillVariable variable, Object expressionValue, AbstractValueProvider valueProvider) throws JRException
{
return increment((JRCalculable) variable, expressionValue, valueProvider);
}
/**
* This implementation calls {@link JRExtendedIncrementer#increment(JRCalculable, Object, AbstractValueProvider) increment(calculable, calculableValue.getValue(), valueProvider)}.
*/
@Override
public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider) throws JRException
{
return increment(calculable, calculableValue.getValue(), valueProvider);
}
/**
* This implementation returns true
.
*
* Incrementer implementations can override this to specify that
* null
values should not be ignored.
*/
@Override
public boolean ignoresNullValues()
{
return true;
}
}