eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/preference/menu/CdmPreferencePage.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.taxeditor.preference.menu;
  11
  12 import java.util.Collection;
  13 import java.util.List;
  14 import java.util.Map;
  15
  16 import org.eclipse.jface.preference.PreferencePage;
  17 import org.eclipse.jface.resource.ImageDescriptor;
  18
  19 import eu.etaxonomy.cdm.model.common.CdmBase;
  20 import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
  21 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
  22 import eu.etaxonomy.taxeditor.store.CdmStore;
  23
  24 /**
  25  * @author cmathew
  26  * @date 30 Jul 2015
  27  *
  28  */
  29 public abstract class CdmPreferencePage extends PreferencePage implements ICdmEntitySessionEnabled {
  30
  31     private ICdmEntitySession previousCdmEntitySession;
  32     private boolean isApply;
  33
  34     public CdmPreferencePage() {
  35         initSession();
  36     }
  37
  38     public CdmPreferencePage(String title) {
  39         super(title);
  40         initSession();
  41     }
  42
  43     public CdmPreferencePage(String title, ImageDescriptor image) {
  44         super(title, image);
  45         initSession();
  46     }
  47
  48     private void initSession() {
  49         if (CdmStore.isActive()){
  50             previousCdmEntitySession = CdmStore.getCurrentSessionManager().getActiveSession();
  51             bindNullSession();
  52         }
  53
  54     }
  55
  56     private void bindNullSession() {
  57         if(CdmStore.isActive()) {
  58             CdmStore.getCurrentSessionManager().bindNullSession();
  59         }
  60     }
  61
  62     @Override
  63     public boolean performOk() {
  64         if(previousCdmEntitySession != null && !isApply) {
  65             previousCdmEntitySession.bind();
  66         }
  67         return super.performOk();
  68     }
  69
  70     @Override
  71     public boolean performCancel() {
  72         if(previousCdmEntitySession != null) {
  73             previousCdmEntitySession.bind();
  74         }
  75         return super.performCancel();
  76     }
  77
  78     @Override
  79     public void performApply() {
  80         isApply = true;
  81         super.performApply();
  82         isApply = false;
  83     }
  84
  85     /* (non-Javadoc)
  86      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getCdmEntitySession()
  87      */
  88     @Override
  89     public ICdmEntitySession getCdmEntitySession() {
  90         return CdmStore.getCurrentSessionManager().getNullSession();
  91     }
  92
  93     /* (non-Javadoc)
  94      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getRootEntities()
  95      */
  96     @Override
  97     public <T extends CdmBase> Collection<T> getRootEntities() {
  98         return null;
  99     }
 100
 101     /* (non-Javadoc)
 102      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getPropertyPathsMap()
 103      */
 104     @Override
 105     public Map<Object, List<String>> getPropertyPathsMap() {
 106         return null;
 107     }
 108
 109 }