3 * Copyright (C) 2007 EDIT
4 * European Distributed Institute of Taxonomy
5 * http://www.e-taxonomy.eu
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.
11 package eu
.etaxonomy
.taxeditor
.navigation
.navigator
;
13 import org
.apache
.log4j
.Logger
;
14 import org
.eclipse
.jface
.viewers
.ITreeContentProvider
;
15 import org
.eclipse
.jface
.viewers
.Viewer
;
17 import eu
.etaxonomy
.cdm
.model
.taxon
.TaxonNode
;
18 import eu
.etaxonomy
.cdm
.model
.taxon
.TaxonomicTree
;
25 public class TaxonNodeContentProvider
implements ITreeContentProvider
{
26 private static final Logger logger
= Logger
27 .getLogger(TaxonNodeContentProvider
.class);
29 private static final Object
[] NO_CHILDREN
= new Object
[0];
31 public Object
[] getChildren(Object parentElement
) {
32 Object
[] children
= null;
33 if (parentElement
instanceof TaxonNode
) {
34 children
= ((TaxonNode
) parentElement
).getChildNodes().toArray();
35 } else if (parentElement
instanceof TaxonomicTree
) {
36 children
= ((TaxonomicTree
) parentElement
).getChildNodes().toArray();
38 return children
!= null ? children
: NO_CHILDREN
;
41 public Object
getParent(Object element
) {
42 if(element
instanceof TaxonNode
){
43 return ((TaxonNode
) element
).getParent();
48 public boolean hasChildren(Object element
) {
49 return this.getChildren(element
).length
> 0;
52 public Object
[] getElements(Object inputElement
) {
53 return this.getChildren(inputElement
);
56 public void dispose() {
59 public void inputChanged(Viewer viewer
, Object oldInput
, Object newInput
) {