eu.etaxonomy.taxeditor.bulkeditor/src/main/java/eu/etaxonomy/taxeditor/bulkeditor/input/sortprovider/TitleCacheComparator.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.taxeditor.bulkeditor.input.sortprovider;
  12
  13 import java.util.Comparator;
  14
  15 import eu.etaxonomy.cdm.model.common.IIdentifiableEntity;
  16
  17 /**
  18  * <p>IdentifiableEntityComparator class.</p>
  19  *
  20  * @author p.ciardelli
  21  * @created 19.08.2009
  22  * @version 1.0
  23  */
  24 public class TitleCacheComparator<T extends IIdentifiableEntity> implements Comparator<T> {
  25
  26     private boolean fIgnoreCase;
  27
  28         private String getTitleCache(T o) {
  29                 return o == null ? null : o.getTitleCache();
  30         }
  31
  32         /* (non-Javadoc)
  33          * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
  34          */
  35         /** {@inheritDoc} */
  36         public int compare(T o1, T o2) {
  37                 String titleCache1 = getTitleCache(o1);
  38                 String titleCache2 = getTitleCache(o2);
  39                 if (titleCache1 == null && titleCache2 == null) {
  40                         return 0;
  41                 }
  42                 if (titleCache1 == null) {
  43                         return -1;
  44                 }
  45                 if (titleCache2 == null) {
  46                         return 1;
  47                 }
  48         return fIgnoreCase ? titleCache1.compareToIgnoreCase(titleCache2) :
  49                                                         titleCache1.compareTo(titleCache2);
  50         }
  51 }