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 }