eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/model/DefaultTermComparator.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2009 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.model;
  11
  12 import java.util.Comparator;
  13
  14 import eu.etaxonomy.cdm.model.common.DefinedTermBase;
  15 import eu.etaxonomy.taxeditor.store.CdmStore;
  16
  17 /**
  18  * Implements a {@link Comparator} for {@link DefinedTermBase} objects based on the term's label.
  19  * The compare algorithm compares a term's label. Example: If used on an unsorted list of terms, the
  20  * list will be alphabetically  sorted by label afterwards.
  21  *
  22  * @author n.hoffmann
  23  * @date Jan 18, 2012
  24  *
  25  */
  26 public class DefaultTermComparator<T extends DefinedTermBase> implements Comparator<T> {
  27         @Override
  28         public int compare(T o1, T o2) {
  29                 String label1 = o1.getLabel(CdmStore.getDefaultLanguage()) != null ? o1.getLabel(CdmStore.getDefaultLanguage()) : o1.getTitleCache();
  30                 String label2 = o2.getLabel(CdmStore.getDefaultLanguage()) != null ? o2.getLabel(CdmStore.getDefaultLanguage()) : o2.getTitleCache();
  31                 return label1.compareTo(label2);
  32         }
  33 };