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.apache.log4j.Logger;
  13 import org.eclipse.jface.viewers.ILabelProvider;
  14 import org.eclipse.ui.views.properties.PropertyDescriptor;
  15
  16 import eu.etaxonomy.cdm.model.reference.ReferenceBase;
  17
  18 /**
  19  * This subclass is for cases where only one subclass of <code>ReferenceBase</code>
  20  * can be edited in the property source.
  21  * <p>
  22  * For instance, if the user is editing an
  23  * <code>Article</code>, one of its fields would be a
  24  * <code>SingleRefTypePropertySource</code> restricted to a <code>Journal</code>,
  25  * and the reference type drop-down would be replaced by the non-editable
  26  * value "Journal".
  27  *
  28  * @author p.ciardelli
  29  * @created 19.11.2008
  30  * @version 1.0
  31  */
  32 public class SingleRefTypePropertySource extends ReferencePropertySource {
  33         private static final Logger logger = Logger
  34                         .getLogger(SingleRefTypePropertySource.class);
  35
  36         public static final String BOOK = "Book";
  37         public static final String JOURNAL = "Journal";
  38
  39         private String referenceType;
  40
  41         public SingleRefTypePropertySource(ReferenceBase reference, String referenceType) {
  42                 super(reference);
  43
  44                 this.referenceType = referenceType;
  45         }
  46
  47         protected PropertyDescriptor createReferenceTypeDescriptor() {
  48                 return new PropertyDescriptor(P_ID_REFERENCETYPE, P_REFERENCETYPE) {
  49                         public ILabelProvider getLabelProvider() {
  50                                 return super.getLabelProvider();
  51                         }
  52                 };
  53         }
  54
  55         public Object getPropertyValue(Object id) {
  56
  57                 // Reference Type: show non-editable reference type in property value
  58                 if (id.equals(P_ID_REFERENCETYPE)) {
  59                         return referenceType;
  60                 }
  61
  62                 return super.getPropertyValue(id);
  63         }
  64 }