taxeditor-navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNavigatorDataChangeBehavior.java

   1 /**
   2 * Copyright (C) 2007 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
  10 package eu.etaxonomy.taxeditor.navigation.navigator;
  11
  12 import org.apache.log4j.Logger;
  13 import org.eclipse.ui.navigator.CommonViewer;
  14
  15 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  16 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeEvent.EventType;
  17 import eu.etaxonomy.taxeditor.model.AbstractDataChangeBehaviour;
  18 import eu.etaxonomy.taxeditor.model.IDataChangeBehavior;
  19
  20 /**
  21  * @author n.hoffmann
  22  * @created 01.04.2009
  23  * @version 1.0
  24  */
  25 public class TaxonNavigatorDataChangeBehavior extends AbstractDataChangeBehaviour implements
  26                 IDataChangeBehavior {
  27         private static final Logger logger = Logger
  28                         .getLogger(TaxonNavigatorDataChangeBehavior.class);
  29
  30         private TaxonNavigator source;
  31
  32         public TaxonNavigatorDataChangeBehavior(TaxonNavigator taxonNavigator) {
  33                 source = taxonNavigator;
  34         }
  35
  36
  37         /* (non-Javadoc)
  38          * @see eu.etaxonomy.taxeditor.store.model.IDataChangeBehavior#isRelevant(java.lang.Object, eu.etaxonomy.cdm.persistence.hibernate.CdmCrudEvent)
  39          */
  40         public boolean isRelevant(CdmDataChangeMap events) {
  41                 // react on everything except load
  42                 if(events.sizeByEventType(EventType.INSERT) > 0){
  43                         return true;
  44                 }else if(events.sizeByEventType(EventType.UPDATE) > 0){
  45                         return true;
  46                 }else if(events.sizeByEventType(EventType.DELETE) > 0){
  47                         return true;
  48                 }else{
  49                         return false;
  50                 }
  51         }
  52
  53
  54         /* (non-Javadoc)
  55          * @see eu.etaxonomy.taxeditor.store.model.IDataChangeBehavior#reactOnDataChange(java.lang.Object, eu.etaxonomy.cdm.persistence.hibernate.CdmCrudEvent)
  56          */
  57         public void reactOnDataChange(CdmDataChangeMap events) {
  58
  59                 if(isRelevant(events)){
  60
  61                         CommonViewer viewer = source.getCommonViewer();
  62
  63                         viewer.refresh();
  64
  65                         logger.info("DataStore update caused a refresh of the taxonomic tree");
  66
  67                 }
  68         }
  69 }