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 /**
  18  * <p>ClassificationContentProvider class.</p>
  19  *
  20  * @author n.hoffmann
  21  * @created 17.06.2009
  22  * @version 1.0
  23  */
  24 public class ClassificationContentProvider implements ITreeContentProvider {
  25         private static final Logger logger = Logger
  26                         .getLogger(ClassificationContentProvider.class);
  27
  28         /* (non-Javadoc)
  29          * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
  30          */
  31         /** {@inheritDoc} */
  32         public Object[] getChildren(Object parentElement) {
  33                 if (parentElement instanceof Root) {
  34                         return ((Root) parentElement).getParentBeans().toArray();
  35                 }
  36
  37                 return new Object[0];
  38         }
  39
  40         /* (non-Javadoc)
  41          * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
  42          */
  43         /** {@inheritDoc} */
  44         public Object getParent(Object element) {
  45                 return null;
  46         }
  47
  48         /* (non-Javadoc)
  49          * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
  50          */
  51         /** {@inheritDoc} */
  52         public boolean hasChildren(Object element) {
  53                 return this.getChildren(element).length > 0;
  54         }
  55
  56         /* (non-Javadoc)
  57          * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
  58          */
  59         /** {@inheritDoc} */
  60         public Object[] getElements(Object inputElement) {
  61                 return this.getChildren(inputElement);
  62         }
  63
  64         /* (non-Javadoc)
  65          * @see org.eclipse.jface.viewers.IContentProvider#dispose()
  66          */
  67         /**
  68          * <p>dispose</p>
  69          */
  70         public void dispose() {
  71         }
  72
  73         /* (non-Javadoc)
  74          * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
  75          */
  76         /** {@inheritDoc} */
  77         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  78         }
  79 }