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
  10 package eu.etaxonomy.taxeditor.editor.view.descriptive.operation;
  11
  12 import org.eclipse.core.commands.ExecutionException;
  13 import org.eclipse.core.commands.operations.IUndoContext;
  14 import org.eclipse.core.runtime.IAdaptable;
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.core.runtime.IStatus;
  17
  18 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  19 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  20 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  21 import eu.etaxonomy.taxeditor.operation.AbstractPostTaxonOperation;
  22 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  23 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
  24
  25 /**
  26  * <p>DeleteDescriptionElementOperation class.</p>
  27  *
  28  * @author p.ciardelli
  29  * @created 05.02.2009
  30  * @version 1.0
  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 cdmEntitySessionEnabled) {
  48                 super(label, undoContext, postOperationEnabled, cdmEntitySessionEnabled);
  49
  50                 this.element = element;
  51         }
  52
  53         /* (non-Javadoc)
  54          * @see org.eclipse.core.commands.operations.AbstractOperation#execute(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  55          */
  56         /** {@inheritDoc} */
  57         @Override
  58         public IStatus execute(IProgressMonitor monitor, IAdaptable info)
  59                         throws ExecutionException {
  60
  61                 description = element.getInDescription();
  62
  63                 monitor.worked(20);
  64
  65                 // Remove element from description
  66                 if (description == null) {
  67                         MessagingUtils.error(this.getClass(), "Couldn't find element's description!", null);
  68                 } else {
  69                         description.removeElement(element);
  70                 }
  71                 monitor.worked(40);
  72
  73         // Redraw editor if exists
  74                 return postExecute(null);
  75         }
  76
  77         /* (non-Javadoc)
  78          * @see org.eclipse.core.commands.operations.AbstractOperation#redo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  79          */
  80         /** {@inheritDoc} */
  81         @Override
  82         public IStatus redo(IProgressMonitor monitor, IAdaptable info)
  83                         throws ExecutionException {
  84                 return execute(monitor, info);
  85         }
  86
  87         /* (non-Javadoc)
  88          * @see org.eclipse.core.commands.operations.AbstractOperation#undo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  89          */
  90         /** {@inheritDoc} */
  91         @Override
  92         public IStatus undo(IProgressMonitor monitor, IAdaptable info)
  93                         throws ExecutionException {
  94
  95                 description.addElement(element);
  96
  97                 return postExecute(element);
  98         }
  99 }