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 Class entityType;
  34     private Object source;
  35
  36     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Class sourceType) {
  37         this.action = action;
  38         this.changedObjects = changedObjects;
  39         this.sourceType = sourceType;
  40     }
  41
  42     public CdmChangeEvent(Action action, CdmBase changedObject, Class sourceType) {
  43         this.action = action;
  44         changedObjects = new HashSet<CdmBase>();
  45         changedObjects.add(changedObject);
  46         this.sourceType = sourceType;
  47     }
  48
  49     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Class sourceType, Class entityType) {
  50         this(action, changedObjects, sourceType);
  51         this.entityType = entityType;
  52     }
  53
  54     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Object source) {
  55         this(action, changedObjects, source.getClass());
  56         this.source = source;
  57     }
  58
  59     /**
  60      * @return the action
  61      */
  62     public Action getAction() {
  63         return action;
  64     }
  65
  66     /**
  67      * @return the changedObjects
  68      */
  69     public Set<? extends CdmBase> getChangedObjects() {
  70         return changedObjects;
  71     }
  72
  73     /**
  74      * @return the sourceType
  75      */
  76     public Class getSourceType() {
  77         return sourceType;
  78     }
  79
  80
  81     /**
  82      * @return the source
  83      */
  84     public Object getSource() {
  85         return source;
  86     }
  87
  88     public Class getEntityType() {
  89         return entityType;
  90     }
  91
  92     public boolean hasChanges() {
  93         return changedObjects != null && !changedObjects.isEmpty();
  94     }
  95
  96 }