org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/VersionLabelProvider.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.cms.ui.jcr;
  17
  18 import javax.jcr.Node;
  19 import javax.jcr.RepositoryException;
  20 import javax.jcr.version.Version;
  21
  22 import org.argeo.eclipse.ui.EclipseUiException;
  23 import org.eclipse.jface.viewers.ColumnLabelProvider;
  24
  25 /**
  26  * Simple wrapping of the ColumnLabelProvider class to provide text display in
  27  * order to build a tree for version. The getText() method does not assume that
  28  * {@link Version} extends {@link Node} class to respect JCR 2.0 specification
  29  *
  30  */
  31 public class VersionLabelProvider extends ColumnLabelProvider {
  32         private static final long serialVersionUID = 5270739851193688238L;
  33
  34         public String getText(Object element) {
  35                 try {
  36                         if (element instanceof Version) {
  37                                 Version version = (Version) element;
  38                                 return version.getName();
  39                         } else if (element instanceof Node) {
  40                                 return ((Node) element).getName();
  41                         }
  42                 } catch (RepositoryException re) {
  43                         throw new EclipseUiException(
  44                                         "Unexpected error while getting element name", re);
  45                 }
  46                 return super.getText(element);
  47         }
  48 }