eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/operation/DeleteDescriptionElementOperation.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 package eu.etaxonomy.taxeditor.editor.view.descriptive.operation;
  10
  11 import org.eclipse.core.commands.ExecutionException;
  12 import org.eclipse.core.commands.operations.IUndoContext;
  13 import org.eclipse.core.runtime.IAdaptable;
  14 import org.eclipse.core.runtime.IProgressMonitor;
  15 import org.eclipse.core.runtime.IStatus;
  16
  17 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  18 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  19 import eu.etaxonomy.cdm.model.taxon.Taxon;
  20 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  21 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  22 import eu.etaxonomy.taxeditor.operation.AbstractPostTaxonOperation;
  23 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  24 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
  25
  26 /**
  27  * <p>DeleteDescriptionElementOperation class.</p>
  28  *
  29  * @author p.ciardelli
  30  * @created 05.02.2009
  31  */
  32 public class DeleteDescriptionElementOperation extends AbstractPostTaxonOperation {
  33
  34         private final DescriptionElementBase element;
  35         private DescriptionBase<?> description = null;
  36
  37         /**
  38          * <p>Constructor for DeleteDescriptionElementOperation.</p>
  39          *
  40          * @param label a {@link java.lang.String} object.
  41          * @param undoContext a {@link org.eclipse.core.commands.operations.IUndoContext} object.
  42          * @param element a {@link eu.etaxonomy.cdm.model.description.DescriptionElementBase} object.
  43          * @param postOperationEnabled a {@link eu.etaxonomy.taxeditor.operation.IPostOperationEnabled} object.
  44          */
  45         public DeleteDescriptionElementOperation(String label, IUndoContext undoContext,
  46                         DescriptionElementBase element, IPostOperationEnabled postOperationEnabled,
  47                         ICdmEntitySessionEnabled<Taxon> cdmEntitySessionEnabled) {
  48                 super(label, undoContext, postOperationEnabled, cdmEntitySessionEnabled);
  49
  50                 this.element = element;
  51         }
  52
  53         @Override
  54         public IStatus execute(IProgressMonitor monitor, IAdaptable info)
  55                         throws ExecutionException {
  56
  57                 description = element.getInDescription();
  58
  59                 monitor.worked(20);
  60
  61                 // Remove element from description
  62                 if (description == null) {
  63                         MessagingUtils.error(this.getClass(), Messages.DeleteDescriptionElementOperation_DESC_NOT_FOUND, null);
  64                 } else {
  65                         description.removeElement(element);
  66                 }
  67                 monitor.worked(40);
  68
  69         // Redraw editor if exists
  70                 return postExecute(description);
  71         }
  72
  73         @Override
  74         public IStatus redo(IProgressMonitor monitor, IAdaptable info)
  75                         throws ExecutionException {
  76                 return execute(monitor, info);
  77         }
  78
  79         @Override
  80         public IStatus undo(IProgressMonitor monitor, IAdaptable info)
  81                         throws ExecutionException {
  82
  83                 description.addElement(element);
  84
  85                 return postExecute(element);
  86         }
  87 }