server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/providers/VersionLabelProvider.java

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   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.jcr.ui.explorer.providers;
  17
  18 import javax.jcr.Node;
  19 import javax.jcr.RepositoryException;
  20 import javax.jcr.version.Version;
  21
  22 import org.argeo.ArgeoException;
  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 Get text method does not assume that
  28  * Version extends Node class to respect JCR 2.0 specification
  29  *
  30  */
  31 public class VersionLabelProvider extends ColumnLabelProvider {
  32
  33         public String getText(Object element) {
  34                 try {
  35                         if (element instanceof Version) {
  36                                 Version version = (Version) element;
  37                                 return version.getName();
  38                         } else if (element instanceof Node) {
  39                                 return ((Node) element).getName();
  40                         }
  41                 } catch (RepositoryException re) {
  42                         throw new ArgeoException(
  43                                         "Unexpected error while getting element name", re);
  44                 }
  45                 return super.getText(element);
  46         }
  47 }