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         previousCdmEntitySession = CdmStore.getCurrentSessionManager().getActiveSession();
  50         bindNullSession();
  51     }
  52
  53     private void bindNullSession() {
  54         if(CdmStore.isActive()) {
  55             CdmStore.getCurrentSessionManager().bindNullSession();
  56         }
  57     }
  58
  59     @Override
  60     public boolean performOk() {
  61         if(previousCdmEntitySession != null && !isApply) {
  62             previousCdmEntitySession.bind();
  63         }
  64         return super.performOk();
  65     }
  66
  67     @Override
  68     public boolean performCancel() {
  69         if(previousCdmEntitySession != null) {
  70             previousCdmEntitySession.bind();
  71         }
  72         return super.performCancel();
  73     }
  74
  75     @Override
  76     public void performApply() {
  77         isApply = true;
  78         super.performApply();
  79         isApply = false;
  80     }
  81
  82     /* (non-Javadoc)
  83      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getCdmEntitySession()
  84      */
  85     @Override
  86     public ICdmEntitySession getCdmEntitySession() {
  87         return CdmStore.getCurrentSessionManager().getNullSession();
  88     }
  89
  90     /* (non-Javadoc)
  91      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getRootEntities()
  92      */
  93     @Override
  94     public <T extends CdmBase> Collection<T> getRootEntities() {
  95         return null;
  96     }
  97
  98     /* (non-Javadoc)
  99      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getPropertyPathsMap()
 100      */
 101     @Override
 102     public Map<Object, List<String>> getPropertyPathsMap() {
 103         return null;
 104     }
 105
 106 }