2
* JasperReports - Free Java Reporting Library.
3
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
4
* http://www.jaspersoft.com
6
* Unless you have purchased a commercial license agreement from Jaspersoft,
7
* the following license terms apply:
9
* This program is part of JasperReports.
11
* JasperReports is free software: you can redistribute it and/or modify
12
* it under the terms of the GNU Lesser General Public License as published by
13
* the Free Software Foundation, either version 3 of the License, or
14
* (at your option) any later version.
16
* JasperReports is distributed in the hope that it will be useful,
17
* but WITHOUT ANY WARRANTY; without even the implied warranty of
18
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19
* GNU Lesser General Public License for more details.
21
* You should have received a copy of the GNU Lesser General Public License
22
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
24
package net.sf.jasperreports.engine.fill;
26
import net.sf.jasperreports.engine.JRException;
29
* Base class for extended incrementers.
31
* @author Lucian Chirita (lucianc@users.sourceforge.net)
32
* @version $Id: JRAbstractExtendedIncrementer.java 3034 2009-08-27 11:58:04Z teodord $
34
public abstract class JRAbstractExtendedIncrementer implements JRExtendedIncrementer
38
* This implementation simply calls {@link JRExtendedIncrementer#increment(JRCalculable, Object, AbstractValueProvider) increment(JRCalculable, Object, AbstractValueProvider)}.
40
public Object increment(JRFillVariable variable, Object expressionValue, AbstractValueProvider valueProvider) throws JRException
42
return increment((JRCalculable) variable, expressionValue, valueProvider);
46
* This implementation calls {@link JRExtendedIncrementer#increment(JRCalculable, Object, AbstractValueProvider) increment(calculable, calculableValue.getValue(), valueProvider)}.
48
public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider) throws JRException
50
return increment(calculable, calculableValue.getValue(), valueProvider);
54
* This implementation returns <code>true</code>.
56
* Incrementer implementations can override this to specify that
57
* <code>null</code> values should not be ignored.
59
public boolean ignoresNullValues()