eu.etaxonomy.taxeditor.cdmlib/src/main/java/eu/etaxonomy/cdm/api/application/CdmChangeEvent.java

   1 /**
   2 * Copyright (C) 2015 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 package eu.etaxonomy.cdm.api.application;
  10
  11 import java.util.HashSet;
  12 import java.util.Set;
  13
  14 import eu.etaxonomy.cdm.model.common.CdmBase;
  15
  16 /**
  17  * @author cmathew
  18  * @date 7 Apr 2015
  19  */
  20 public class CdmChangeEvent {
  21
  22     public enum Action {
  23         Create,
  24         Update,
  25         Delete
  26     }
  27
  28     private final Action action;
  29     private final Set<CdmBase> changedObjects;
  30     private final Class<?> sourceType;
  31     private Class<?> entityType;
  32     private Object source;
  33
  34     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Class<?> sourceType) {
  35         this.action = action;
  36         this.changedObjects = changedObjects;
  37         this.sourceType = sourceType;
  38     }
  39
  40     public CdmChangeEvent(Action action, CdmBase changedObject, Class<?> sourceType) {
  41         this.action = action;
  42         changedObjects = new HashSet<CdmBase>();
  43         changedObjects.add(changedObject);
  44         this.sourceType = sourceType;
  45     }
  46
  47     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Class sourceType, Class entityType) {
  48         this(action, changedObjects, sourceType);
  49         this.entityType = entityType;
  50     }
  51
  52     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Object source) {
  53         this(action, changedObjects, source.getClass());
  54         this.source = source;
  55     }
  56
  57     public Action getAction() {
  58         return action;
  59     }
  60
  61     public Set<? extends CdmBase> getChangedObjects() {
  62         return changedObjects;
  63     }
  64
  65     public Class<?> getSourceType() {
  66         return sourceType;
  67     }
  68
  69     public Object getSource() {
  70         return source;
  71     }
  72
  73     public Class<?> getEntityType() {
  74         return entityType;
  75     }
  76
  77     public boolean hasChanges() {
  78         return changedObjects != null && !changedObjects.isEmpty();
  79     }
  80 }