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

   1 // $Id$
   2 /**
   3 * Copyright (C) 2015 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 package eu.etaxonomy.cdm.api.application;
  11
  12 import java.util.HashSet;
  13 import java.util.Set;
  14
  15 import eu.etaxonomy.cdm.model.common.CdmBase;
  16
  17 /**
  18  * @author cmathew
  19  * @date 7 Apr 2015
  20  *
  21  */
  22 public class CdmChangeEvent {
  23
  24     public enum Action {
  25         Create,
  26         Update,
  27         Delete
  28     }
  29
  30     private final Action action;
  31     private final Set<CdmBase> changedObjects;
  32     private final Class sourceType;
  33     private Object source;
  34
  35     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Class sourceType) {
  36         this.action = action;
  37         this.changedObjects = changedObjects;
  38         this.sourceType = sourceType;
  39     }
  40
  41     public CdmChangeEvent(Action action, CdmBase changedObject, Class sourceType) {
  42         this.action = action;
  43         changedObjects = new HashSet<CdmBase>();
  44         changedObjects.add(changedObject);
  45         this.sourceType = sourceType;
  46     }
  47
  48     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Object source) {
  49         this(action, changedObjects, source.getClass());
  50         this.source = source;
  51     }
  52
  53     /**
  54      * @return the action
  55      */
  56     public Action getAction() {
  57         return action;
  58     }
  59
  60     /**
  61      * @return the changedObjects
  62      */
  63     public Set<? extends CdmBase> getChangedObjects() {
  64         return changedObjects;
  65     }
  66
  67     /**
  68      * @return the sourceType
  69      */
  70     public Class getSourceType() {
  71         return sourceType;
  72     }
  73
  74
  75     /**
  76      * @return the source
  77      */
  78     public Object getSource() {
  79         return source;
  80     }
  81
  82     public boolean hasChanges() {
  83         return changedObjects != null && !changedObjects.isEmpty();
  84     }
  85
  86 }