net.sf.jasperreports.engine.export.ExporterFilterContainer 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.export;
import java.util.Iterator;
import java.util.List;
import net.sf.jasperreports.engine.JRPrintElement;
import net.sf.jasperreports.engine.JRRuntimeException;
/**
* An exporter filter that consists of several exporter filter, and filters
* elements through each of them.
*
* @author Lucian Chirita ([email protected])
* @see #isToExport(JRPrintElement)
*/
public class ExporterFilterContainer implements ResetableExporterFilter
{
public static final String EXCEPTION_MESSAGE_KEY_NULL_FILTERS_LIST = "export.filter.null.filters.list";
private final List filters;
/**
* Constructs a container for a list of exporter filters.
*
* @param filters the list of filters
*/
public ExporterFilterContainer(List filters)
{
if (filters == null)
{
throw
new JRRuntimeException(
EXCEPTION_MESSAGE_KEY_NULL_FILTERS_LIST,
(Object[])null);
}
this.filters = filters;
}
/**
* Returns true
if the element is not filtered by any of
* the contained filters.
*/
@Override
public boolean isToExport(JRPrintElement element)
{
boolean export = true;
for (Iterator it = filters.iterator(); it.hasNext();)
{
ExporterFilter filter = it.next();
if (!filter.isToExport(element))
{
export = false;
break;
}
}
return export;
}
@Override
public void reset()
{
for (ExporterFilter filter : filters)
{
if (filter instanceof ResetableExporterFilter)
{
((ResetableExporterFilter) filter).reset();
}
}
}
}