001    /*****************************************************************************
002     * Copyright (C) PicoContainer Organization. All rights reserved.            *
003     * ------------------------------------------------------------------------- *
004     * The software in this package is published under the terms of the BSD      *
005     * style license a copy of which has been included with this distribution in *
006     * the LICENSE.txt file.                                                     *
007     *                                                                           *
008     * Original code by the committers                                           *
009     *****************************************************************************/
010    package org.picocontainer.alternatives;
011    
012    import java.io.Serializable;
013    
014    import org.picocontainer.MutablePicoContainer;
015    import org.picocontainer.PicoContainer;
016    import org.picocontainer.defaults.CachingComponentAdapterFactory;
017    import org.picocontainer.defaults.ComponentAdapterFactory;
018    import org.picocontainer.defaults.ConstructorInjectionComponentAdapterFactory;
019    import org.picocontainer.defaults.DefaultPicoContainer;
020    
021    /**
022     * The Caching version of  {@link org.picocontainer.defaults.DefaultPicoContainer}
023     *
024     * @see ImplementationHidingCachingPicoContainer
025     * @see ImplementationHidingPicoContainer
026     * @author Paul Hammant
027     * @version $Revision: 2381 $
028     */
029    public class CachingPicoContainer extends AbstractDelegatingMutablePicoContainer implements Serializable {
030        private final ComponentAdapterFactory caf;
031    
032        /**
033         * Creates a new container with a parent container.
034         */
035        public CachingPicoContainer(ComponentAdapterFactory caf, PicoContainer parent) {
036            super(new DefaultPicoContainer(makeComponentAdapterFactory(caf), parent));
037            this.caf = caf;
038        }
039    
040        private static CachingComponentAdapterFactory makeComponentAdapterFactory(ComponentAdapterFactory caf) {
041            if (caf instanceof CachingComponentAdapterFactory) {
042                return (CachingComponentAdapterFactory) caf;
043            }
044            return new CachingComponentAdapterFactory(caf);
045        }
046    
047        /**
048         * Creates a new container with a parent container.
049         */
050        public CachingPicoContainer(PicoContainer parent) {
051            this(makeComponentAdapterFactory(new ConstructorInjectionComponentAdapterFactory()), parent);
052        }
053        
054        /**
055         * Creates a new container with a parent container.
056         */
057        public CachingPicoContainer(ComponentAdapterFactory caf) {
058            this(makeComponentAdapterFactory(caf), null);
059        }
060    
061    
062        /**
063         * Creates a new container with no parent container.
064         */
065        public CachingPicoContainer() {
066            this((PicoContainer) null);
067        }
068    
069    
070        public MutablePicoContainer makeChildContainer() {
071            CachingPicoContainer pc = new CachingPicoContainer(caf, this);
072            getDelegate().addChildContainer(pc);
073            return pc;
074        }
075    
076    }