| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. The ASF licenses this file to You |
| * under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.jackrabbit.decorator; |
| |
| import org.apache.jackrabbit.decorator.NodeDecorator; |
| import org.apache.jackrabbit.decorator.DecoratorFactory; |
| |
| import javax.jcr.Session; |
| import javax.jcr.RepositoryException; |
| import javax.jcr.version.Version; |
| import javax.jcr.version.VersionHistory; |
| import java.util.Calendar; |
| |
| /** |
| */ |
| public class VersionDecorator extends NodeDecorator implements Version { |
| |
| protected final Version version; |
| |
| public VersionDecorator(DecoratorFactory factory, |
| Session session, |
| Version version) { |
| super(factory, session, version); |
| this.version = version; |
| } |
| |
| /** |
| * Returns the underlying <code>Version</code> of the <code>version</code> |
| * that decorates it. Unwrapping <code>null</code> returns <code>null</code>. |
| * |
| * @param version decorates the underlying version. |
| * @return the underlying version. |
| * @throws IllegalStateException if <code>version</code> is not of type |
| * {@link VersionDecorator}. |
| */ |
| public static Version unwrap(Version version) { |
| if (version == null) { |
| return null; |
| } |
| if (version instanceof VersionDecorator) { |
| version = (Version) ((VersionDecorator) version).unwrap(); |
| } else { |
| throw new IllegalStateException("version is not of type VersionDecorator"); |
| } |
| return version; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| public VersionHistory getContainingHistory() throws RepositoryException { |
| VersionHistory vHistory = version.getContainingHistory(); |
| return factory.getVersionHistoryDecorator(session, vHistory); |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| public Calendar getCreated() throws RepositoryException { |
| return version.getCreated(); |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| public Version[] getSuccessors() throws RepositoryException { |
| Version[] successors = version.getSuccessors(); |
| for (int i = 0; i < successors.length; i++) { |
| successors[i] = factory.getVersionDecorator(session, successors[i]); |
| } |
| return successors; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| public Version[] getPredecessors() throws RepositoryException { |
| Version[] predecessors = version.getPredecessors(); |
| for (int i = 0; i < predecessors.length; i++) { |
| predecessors[i] = factory.getVersionDecorator(session, predecessors[i]); |
| } |
| return predecessors; |
| } |
| } |