taxeditor-navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/taxonomictree/TaxonomicTreeViewDataChangeBehaviour.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.taxonomictree;
  11
  12 import org.apache.log4j.Logger;
  13
  14 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  15 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeEvent.EventType;
  16 import eu.etaxonomy.taxeditor.store.model.AbstractDataChangeBehaviour;
  17 import eu.etaxonomy.taxeditor.store.model.IDataChangeBehavior;
  18
  19 /**
  20  * @author n.hoffmann
  21  * @created 01.04.2009
  22  * @version 1.0
  23  */
  24 public class TaxonomicTreeViewDataChangeBehaviour extends AbstractDataChangeBehaviour implements
  25                 IDataChangeBehavior {
  26         private static final Logger logger = Logger
  27                         .getLogger(TaxonomicTreeViewDataChangeBehaviour.class);
  28
  29         private TaxonomicTreeView source;
  30
  31         public TaxonomicTreeViewDataChangeBehaviour(
  32                         TaxonomicTreeView taxonomicTreeView) {
  33                 source = taxonomicTreeView;
  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
  60                 if(isRelevant(events)){
  61
  62                         source.refresh();
  63
  64                         logger.info("DataStore update caused a refresh of the taxonomic tree");
  65
  66                 }
  67         }
  68 }