eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/ClassificationContentProvider.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   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.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.navigation.navigator;
  12
  13 import org.apache.log4j.Logger;
  14 import org.eclipse.jface.viewers.ITreeContentProvider;
  15 import org.eclipse.jface.viewers.Viewer;
  16
  17 import eu.etaxonomy.cdm.model.taxon.Classification;
  18
  19 /**
  20  * <p>ClassificationContentProvider class.</p>
  21  *
  22  * @author n.hoffmann
  23  * @created 17.06.2009
  24  * @version 1.0
  25  */
  26 public class ClassificationContentProvider implements ITreeContentProvider {
  27         private static final Logger logger = Logger
  28                         .getLogger(ClassificationContentProvider.class);
  29
  30         /* (non-Javadoc)
  31          * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
  32          */
  33         /** {@inheritDoc} */
  34         public Object[] getChildren(Object parentElement) {
  35                 if (parentElement instanceof Root) {
  36                         return ((Root) parentElement).getParentBeans().toArray();
  37                 }else if(parentElement instanceof Classification){
  38                         return ((Classification) parentElement).getChildNodes().toArray();
  39                 }
  40
  41
  42                 return new Object[0];
  43         }
  44
  45         /* (non-Javadoc)
  46          * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
  47          */
  48         /** {@inheritDoc} */
  49         public Object getParent(Object element) {
  50                 return null;
  51         }
  52
  53         /* (non-Javadoc)
  54          * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
  55          */
  56         /** {@inheritDoc} */
  57         public boolean hasChildren(Object element) {
  58                 return this.getChildren(element).length > 0;
  59         }
  60
  61         /* (non-Javadoc)
  62          * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
  63          */
  64         /** {@inheritDoc} */
  65         public Object[] getElements(Object inputElement) {
  66                 return this.getChildren(inputElement);
  67         }
  68
  69         /* (non-Javadoc)
  70          * @see org.eclipse.jface.viewers.IContentProvider#dispose()
  71          */
  72         /**
  73          * <p>dispose</p>
  74          */
  75         public void dispose() {
  76         }
  77
  78         /* (non-Javadoc)
  79          * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
  80          */
  81         /** {@inheritDoc} */
  82         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  83         }
  84 }