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  */
  21 public class CdmChangeEvent {
  22
  23     public enum Action {
  24         Create,
  25         Update,
  26         Delete
  27     }
  28
  29     private final Action action;
  30     private final Set<CdmBase> changedObjects;
  31     private final Class sourceType;
  32     private Class entityType;
  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, Class sourceType, Class entityType) {
  49         this(action, changedObjects, sourceType);
  50         this.entityType = entityType;
  51     }
  52
  53     public CdmChangeEvent(Action action, Set<CdmBase> changedObjects, Object source) {
  54         this(action, changedObjects, source.getClass());
  55         this.source = source;
  56     }
  57
  58     /**
  59      * @return the action
  60      */
  61     public Action getAction() {
  62         return action;
  63     }
  64
  65     /**
  66      * @return the changedObjects
  67      */
  68     public Set<? extends CdmBase> getChangedObjects() {
  69         return changedObjects;
  70     }
  71
  72     /**
  73      * @return the sourceType
  74      */
  75     public Class getSourceType() {
  76         return sourceType;
  77     }
  78
  79
  80     /**
  81      * @return the source
  82      */
  83     public Object getSource() {
  84         return source;
  85     }
  86
  87     public Class getEntityType() {
  88         return entityType;
  89     }
  90
  91     public boolean hasChanges() {
  92         return changedObjects != null && !changedObjects.isEmpty();
  93     }
  94
  95 }