001    package org.apache.ojb.broker.core;
002    
003    /* Copyright 2003-2005 The Apache Software Foundation
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    import org.apache.commons.pool.KeyedObjectPool;
019    import org.apache.ojb.broker.PersistenceBrokerInternal;
020    import org.apache.ojb.broker.util.logging.LoggerFactory;
021    
022    public class PoolablePersistenceBroker extends DelegatingPersistenceBroker
023    {
024        private KeyedObjectPool pool;
025    
026        public PoolablePersistenceBroker(PersistenceBrokerInternal broker, KeyedObjectPool pool)
027        {
028            super(broker);
029            this.pool = pool;
030        }
031    
032        public boolean close()
033        {
034            super.close();
035            try
036            {
037                pool.returnObject(this.getPBKey(), this);
038                return true;
039            }
040            catch (Exception e)
041            {
042                LoggerFactory.getDefaultLogger().error("Unexpected exception when returning instance to pool", e);
043                return false;
044            }
045        }
046    
047        public void destroy()
048        {
049            this.setDelegate(null);
050        }
051    }