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.containers;
011
012 import org.picocontainer.ComponentAdapter;
013 import org.picocontainer.MutablePicoContainer;
014 import org.picocontainer.Parameter;
015 import org.picocontainer.PicoContainer;
016 import org.picocontainer.PicoException;
017 import org.picocontainer.PicoVisitor;
018 import org.picocontainer.PicoCompositionException;
019 import org.picocontainer.ParameterName;
020
021 import java.io.Serializable;
022 import java.util.Collection;
023 import java.util.List;
024 import java.util.Properties;
025
026 /**
027 * @author Paul Hammant
028 */
029 public abstract class AbstractDelegatingMutablePicoContainer implements MutablePicoContainer, Serializable {
030
031 private MutablePicoContainer delegate;
032
033 public AbstractDelegatingMutablePicoContainer(MutablePicoContainer delegate) {
034 if (delegate == null) {
035 throw new NullPointerException("MutablePicoContainer delegate must not be null");
036 }
037 this.delegate = delegate;
038 }
039
040 protected MutablePicoContainer getDelegate() {
041 return delegate;
042 }
043
044 public MutablePicoContainer addComponent(Object componentKey,
045 Object componentImplementationOrInstance,
046 Parameter... parameters) throws PicoCompositionException {
047 return delegate.addComponent(componentKey, componentImplementationOrInstance, parameters);
048 }
049
050 public MutablePicoContainer addComponent(Object implOrInstance) throws PicoCompositionException {
051 return delegate.addComponent(implOrInstance);
052 }
053
054 public MutablePicoContainer addConfig(String name, Object val) {
055 return delegate.addConfig(name, val);
056 }
057
058 public MutablePicoContainer addAdapter(ComponentAdapter componentAdapter) throws PicoCompositionException {
059 return delegate.addAdapter(componentAdapter);
060 }
061
062 public ComponentAdapter removeComponent(Object componentKey) {
063 return delegate.removeComponent(componentKey);
064 }
065
066 public ComponentAdapter removeComponentByInstance(Object componentInstance) {
067 return delegate.removeComponentByInstance(componentInstance);
068 }
069
070 public Object getComponent(Object componentKeyOrType) {
071 return delegate.getComponent(componentKeyOrType);
072 }
073
074 public <T> T getComponent(Class<T> componentType) {
075 return componentType.cast(getComponent((Object)componentType));
076 }
077
078 public List getComponents() {
079 return delegate.getComponents();
080 }
081
082 public PicoContainer getParent() {
083 return delegate.getParent();
084 }
085
086 public ComponentAdapter<?> getComponentAdapter(Object componentKey) {
087 return delegate.getComponentAdapter(componentKey);
088 }
089
090 public <T> ComponentAdapter<T> getComponentAdapter(Class<T> componentType, ParameterName componentParameterName) {
091 return delegate.getComponentAdapter(componentType, componentParameterName);
092 }
093
094 public Collection<ComponentAdapter<?>> getComponentAdapters() {
095 return delegate.getComponentAdapters();
096 }
097
098 public <T> List<ComponentAdapter<T>> getComponentAdapters(Class<T> componentType) {
099 return delegate.getComponentAdapters(componentType);
100 }
101
102 public void start() {
103 delegate.start();
104 }
105
106 public void stop() {
107 delegate.stop();
108 }
109
110 public void dispose() {
111 delegate.dispose();
112 }
113
114 public MutablePicoContainer addChildContainer(PicoContainer child) {
115 return delegate.addChildContainer(child);
116 }
117
118 public boolean removeChildContainer(PicoContainer child) {
119 return delegate.removeChildContainer(child);
120 }
121
122 public void accept(PicoVisitor visitor) {
123 delegate.accept(visitor);
124 }
125
126 public <T> List<T> getComponents(Class<T> type) throws PicoException {
127 return delegate.getComponents(type);
128 }
129
130 public boolean equals(Object obj) {
131 // required to make it pass on both jdk 1.3 and jdk 1.4. Btw, what about overriding hashCode()? (AH)
132 return delegate.equals(obj) || this == obj;
133 }
134
135 public MutablePicoContainer change(Properties... properties) {
136 return delegate.change(properties);
137 }
138
139 public MutablePicoContainer as(Properties... properties) {
140 return delegate.as(properties);
141 }
142 }