/**
* This file is part of Archiv-Editor.
*
* The software Archiv-Editor serves as a client user interface for working with
* the Person Data Repository. See: pdr.bbaw.de
*
* The software Archiv-Editor was developed at the Berlin-Brandenburg Academy
* of Sciences and Humanities, Jägerstr. 22/23, D-10117 Berlin.
* www.bbaw.de
*
* Copyright (C) 2010-2013 Berlin-Brandenburg Academy
* of Sciences and Humanities
*
* The software Archiv-Editor was developed by @author: Christoph Plutte.
*
* Archiv-Editor 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.
*
* Archiv-Editor 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 Archiv-Editor.
* If not, see <http://www.gnu.org/licenses/lgpl-3.0.html>.
*/
package org.bbaw.pdr.ae.control.comparator;
import java.util.Comparator;
import org.bbaw.pdr.ae.model.ReferenceMods;
/**
* Comparator for References according to Author and Title.
* @author Christoph Plutte
*/
public class ReferenceByAuthorTitleComparator implements Comparator<ReferenceMods>
{
/** ascending flag. */
private boolean _ascending;
/**
* constructor.
*/
public ReferenceByAuthorTitleComparator()
{
this._ascending = false;
}
/**
* constructor with ascending flag.
* @param ascending ascending flag
*/
public ReferenceByAuthorTitleComparator(final boolean ascending)
{
this._ascending = ascending;
}
@Override
public final int compare(final ReferenceMods r1, final ReferenceMods r2)
{
int c = 0;
if (r1 != null && r2 != null)
{
c = r1.getDisplayName().compareToIgnoreCase(r2.getDisplayName());
}
else if (r1 != null)
{
c = -1;
}
else if (r2 != null)
{
c = 1;
}
if (_ascending)
{
return -c;
}
else
{
return c;
}
}
}