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