| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. 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.felix.cm.impl; |
| |
| |
| import java.io.IOException; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| |
| import org.apache.felix.cm.PersistenceManager; |
| |
| |
| /** |
| * The <code>PersistenceManagerProxy</code> TODO |
| */ |
| class PersistenceManagerProxy implements PersistenceManager |
| { |
| |
| private PersistenceManager delegatee; |
| |
| |
| PersistenceManagerProxy( PersistenceManager delegatee ) |
| { |
| setPersistenceManager( delegatee ); |
| } |
| |
| |
| /** |
| * @param pid |
| * @throws IOException |
| * @see org.apache.felix.cm.PersistenceManager#delete(java.lang.String) |
| */ |
| public void delete( String pid ) throws IOException |
| { |
| checkDelegatee(); |
| delegatee.delete( pid ); |
| } |
| |
| |
| /** |
| * @param pid |
| * @see org.apache.felix.cm.PersistenceManager#exists(java.lang.String) |
| */ |
| public boolean exists( String pid ) |
| { |
| return delegatee != null && delegatee.exists( pid ); |
| } |
| |
| |
| /** |
| * @throws IOException |
| * @see org.apache.felix.cm.PersistenceManager#getDictionaries() |
| */ |
| public Enumeration getDictionaries() throws IOException |
| { |
| checkDelegatee(); |
| return delegatee.getDictionaries(); |
| } |
| |
| |
| /** |
| * @param pid |
| * @throws IOException |
| * @see org.apache.felix.cm.PersistenceManager#load(java.lang.String) |
| */ |
| public Dictionary load( String pid ) throws IOException |
| { |
| checkDelegatee(); |
| return delegatee.load( pid ); |
| } |
| |
| |
| /** |
| * @param pid |
| * @param properties |
| * @throws IOException |
| * @see org.apache.felix.cm.PersistenceManager#store(java.lang.String, java.util.Dictionary) |
| */ |
| public void store( String pid, Dictionary properties ) throws IOException |
| { |
| checkDelegatee(); |
| delegatee.store( pid, properties ); |
| } |
| |
| |
| void setPersistenceManager( PersistenceManager delegatee ) |
| { |
| this.delegatee = delegatee; |
| } |
| |
| |
| void checkDelegatee() throws IOException |
| { |
| if ( delegatee == null ) |
| { |
| throw new IOException( "PersistenceManager not valid" ); |
| } |
| } |
| } |