taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/propertysheet/reference/SingleRefTypePropertySource.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.propertysheet.reference;
  11
  12 import org.eclipse.jface.viewers.ILabelProvider;
  13 import org.eclipse.ui.views.properties.PropertyDescriptor;
  14
  15 import eu.etaxonomy.cdm.model.reference.ReferenceBase;
  16
  17 /**
  18  * This subclass is for cases where only one subclass of <code>ReferenceBase</code>
  19  * can be edited in the property source.
  20  * <p>
  21  * For instance, if the user is editing an
  22  * <code>Article</code>, one of its fields would be a
  23  * <code>SingleRefTypePropertySource</code> restricted to a <code>Journal</code>,
  24  * and the reference type drop-down would be replaced by the non-editable
  25  * value "Journal".
  26  *
  27  * @author p.ciardelli
  28  * @created 19.11.2008
  29  * @version 1.0
  30  */
  31 public class SingleRefTypePropertySource extends ReferencePropertySource {
  32
  33         public static final String BOOK = "Book";
  34         public static final String JOURNAL = "Journal";
  35
  36         private String referenceType;
  37
  38         public SingleRefTypePropertySource(ReferenceBase<?> reference, String referenceType) {
  39                 super(reference);
  40
  41                 this.referenceType = referenceType;
  42         }
  43
  44         protected PropertyDescriptor createReferenceTypeDescriptor() {
  45                 return new PropertyDescriptor(P_ID_REFERENCETYPE, P_REFERENCETYPE) {
  46                         public ILabelProvider getLabelProvider() {
  47                                 return super.getLabelProvider();
  48                         }
  49                 };
  50         }
  51
  52         public Object getPropertyValue(Object id) {
  53
  54                 // Reference Type: show non-editable reference type in property value
  55                 if (id.equals(P_ID_REFERENCETYPE)) {
  56                         return referenceType;
  57                 }
  58
  59                 return super.getPropertyValue(id);
  60         }
  61 }