/*
* This is eMonocot, a global online biodiversity information resource.
*
* Copyright © 2011–2015 The Board of Trustees of the Royal Botanic Gardens, Kew and The University of Oxford
*
* eMonocot is free software: you can redistribute it and/or modify it under the terms of the
* GNU Affero General Public License as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* eMonocot 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 Affero General Public License for more details.
*
* The complete text of the GNU Affero General Public License is in the source repository as the file
* ‘COPYING’. It is also available from <http://www.gnu.org/licenses/>.
*/
package org.emonocot.model.compare;
import java.util.Comparator;
import org.emonocot.model.Description;
import org.emonocot.model.Reference;
public class ReferenceBasedDescriptionComparator implements Comparator<Description> {
Comparator<Reference> referenceComparator = new ReferenceComparator();
@Override
public int compare(Description o1, Description o2) {
if(o1.getReferences().isEmpty() || o2.getReferences().isEmpty()) {
return 0;
} else {
return referenceComparator.compare(o1.getReferences().iterator().next(), o2.getReferences().iterator().next());
}
}
}