001    /** 
002     * 
003     * Copyright 2004 Hiram Chirino
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    package org.activemq.store.cache;
019    
020    import java.io.IOException;
021    
022    import org.activemq.store.PersistenceAdapter;
023    
024    /**
025     * Provides a CachePersistenceAdapter that uses a seperate LRU cache
026     * for each destination.
027     *
028     * @version $Revision: 1.1.1.1 $
029     */
030    public class SimpleCachePersistenceAdapter extends CachePersistenceAdapter {
031            
032            int cacheSize=1000;
033            
034            public SimpleCachePersistenceAdapter() {
035                    super();
036            }
037    
038            public SimpleCachePersistenceAdapter(PersistenceAdapter longTermPersistence)
039                            throws IOException {
040                    super(longTermPersistence);
041            }
042            
043            /**
044             * @see org.activemq.store.cache.CachePersistenceAdapter#createMessageCache(java.lang.String)
045             */
046            protected MessageCache createMessageCache(String destinationName) {
047                    return new SimpleMessageCache(cacheSize);
048            }
049    
050            // Properties
051        //-------------------------------------------------------------------------
052    
053            /**
054             * @return the MAX size that ech destination's LRU can grow to.
055             */
056            public int getCacheSize() {
057                    return cacheSize;
058            }
059            /**
060             * @param the MAX size that ech destination's LRU can grow to.
061             */
062            public void setCacheSize(int cacheSize) {
063                    this.cacheSize = cacheSize;
064            }
065    
066    }