eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNodeNavigatorComparator.java

   1 package eu.etaxonomy.taxeditor.navigation.navigator;
   2
   3 import java.util.Comparator;
   4
   5 import org.eclipse.jface.viewers.Viewer;
   6 import org.eclipse.jface.viewers.ViewerComparator;
   7
   8 import eu.etaxonomy.cdm.model.taxon.Classification;
   9 import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDto;
  10
  11 public class TaxonNodeNavigatorComparator extends ViewerComparator{
  12
  13         Comparator<TaxonNodeDto> comparator;
  14
  15         public TaxonNodeNavigatorComparator(Comparator<TaxonNodeDto> comparator){
  16                 super();
  17                 this.comparator = comparator;
  18         }
  19
  20
  21
  22         @Override
  23         public int compare(Viewer viewer, Object e1, Object e2){
  24                 if ((e1 instanceof Classification && e2 instanceof Classification) ){
  25                         return ((Classification)e1).getTitleCache().compareTo(((Classification)e2).getTitleCache());
  26                 } else{
  27                         if (((TaxonNodeDto)e1).getTaxonUuid() == null && ((TaxonNodeDto)e2).getTaxonUuid() == null){
  28                                 String title1 = ((TaxonNodeDto)e1).getTitleCache();
  29                                 title1 = title1 == null ? "" : title1;
  30                                 return title1.compareTo(((TaxonNodeDto)e2).getTitleCache());
  31                         }else{
  32                                 return comparator.compare((TaxonNodeDto)e1, (TaxonNodeDto)e2);
  33                         }
  34
  35                 }
  36         }
  37 }