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Free Java Reporting Library
/*
* 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;
import java.util.Arrays;
import java.util.List;
import net.sf.jasperreports.engine.fill.DatasetFillContext;
/**
* A dataset filter that wraps several other filters and applies them as a conjunction.
*
* @author Lucian Chirita ([email protected])
*/
public class CompositeDatasetFilter implements DatasetFilter
{
/**
* Combines two filter in a conjunction.
*
* @param filter the first filter
* @param other the second filter
*/
public static DatasetFilter combine(DatasetFilter filter, DatasetFilter other)
{
DatasetFilter combined;
if (filter == null)
{
combined = other;
}
else if (other == null)
{
combined = filter;
}
else
{
combined = new CompositeDatasetFilter(filter, other);
}
return combined;
}
private List filters;
/**
* Creates a conjunction for several filters.
*
* @param filters the filters
*/
public CompositeDatasetFilter(DatasetFilter ... filters)
{
this.filters = Arrays.asList(filters);
}
public CompositeDatasetFilter(List filters)
{
this.filters = filters;
}
@Override
public void init(DatasetFillContext context)
{
for (DatasetFilter filter : filters)
{
filter.init(context);
}
}
@Override
public boolean matches(EvaluationType evaluation)
{
boolean matches = true;
for (DatasetFilter filter : filters)
{
if (!filter.matches(evaluation))
{
matches = false;
break;
}
}
return matches;
}
public List getFilters() {
return filters;
}
public void setFilters(List filters) {
this.filters = filters;
}
}