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

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.bulkeditor.input.sortprovider;
  11
  12 import java.util.Comparator;
  13
  14 import eu.etaxonomy.cdm.model.common.IIdentifiableEntity;
  15
  16 /**
  17  * <p>IdentifiableEntityComparator class.</p>
  18  *
  19  * @author p.ciardelli
  20  * @created 19.08.2009
  21  * @version 1.0
  22  */
  23 public class TitleCacheComparator<T extends IIdentifiableEntity> implements Comparator<T> {
  24
  25     private boolean fIgnoreCase;
  26
  27         private String getTitleCache(T o) {
  28                 return o == null ? null : o.getTitleCache();
  29         }
  30
  31         /* (non-Javadoc)
  32          * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
  33          */
  34         /** {@inheritDoc} */
  35         public int compare(T o1, T o2) {
  36                 String titleCache1 = getTitleCache(o1);
  37                 String titleCache2 = getTitleCache(o2);
  38                 if (titleCache1 == null && titleCache2 == null) {
  39                         return 0;
  40                 }
  41                 if (titleCache1 == null) {
  42                         return -1;
  43                 }
  44                 if (titleCache2 == null) {
  45                         return 1;
  46                 }
  47         return fIgnoreCase ? titleCache1.compareToIgnoreCase(titleCache2) :
  48                                                         titleCache1.compareTo(titleCache2);
  49         }
  50 }