cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/NodeDtoSortMode.java

   1 package eu.etaxonomy.cdm.api.service;
   2
   3 import java.util.Comparator;
   4
   5 import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDto;
   6 import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDtoByNameComparator;
   7 import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDtoByRankAndNameComparator;
   8 import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDtoNaturalComparator;
   9
  10 public enum NodeDtoSortMode {
  11
  12         NaturalOrder(TaxonNodeDtoNaturalComparator.class),
  13         /**
  14      * sorts by TaxonName titleCaches and rank associated with the taxonNodes
  15      */
  16         RankAndAlphabeticalOrder(TaxonNodeDtoByRankAndNameComparator.class),
  17         /**
  18          * sorts by TaxonName titleCaches associated with the taxonNodes
  19          */
  20         AlphabeticalOrder(TaxonNodeDtoByNameComparator.class);
  21
  22         private Class<? extends Comparator<TaxonNodeDto>> type;
  23
  24     NodeDtoSortMode(Class<? extends Comparator<TaxonNodeDto>> type){
  25             this.type = type;
  26         }
  27
  28     /**
  29      * @return
  30      */
  31     public Comparator<TaxonNodeDto> newComparator() {
  32         try {
  33             return type.newInstance();
  34         } catch (InstantiationException e) {
  35             throw new RuntimeException(e);
  36         } catch (IllegalAccessException e) {
  37             throw new RuntimeException(e);
  38         }
  39     }
  40 }