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 *****************************************************************************/
009package org.picocontainer.injectors;
010
011import org.picocontainer.ComponentAdapter;
012import org.picocontainer.ComponentMonitor;
013import org.picocontainer.InjectionFactory;
014import org.picocontainer.LifecycleStrategy;
015import org.picocontainer.Parameter;
016import org.picocontainer.PicoCompositionException;
017import org.picocontainer.PicoContainer;
018import org.picocontainer.Characteristics;
019import org.picocontainer.behaviors.AbstractBehaviorFactory;
020
021import java.lang.reflect.Type;
022import java.util.Properties;
023
024public class Reinjection extends CompositeInjection {
025
026    public Reinjection(InjectionFactory reinjectionFactory, final PicoContainer parent) {
027        super(new AbstractInjectionFactory() {
028            public <T> ComponentAdapter<T> createComponentAdapter(
029                    ComponentMonitor componentMonitor, LifecycleStrategy lifecycleStrategy,
030                    Properties componentProperties, final Object componentKey, Class<T> componentImplementation,
031                    Parameter... parameters) throws PicoCompositionException {
032                boolean useNames = AbstractBehaviorFactory.arePropertiesPresent(componentProperties, Characteristics.USE_NAMES, true);
033                return new ReinjectionInjector(componentKey, componentImplementation, parameters, componentMonitor, parent, useNames);
034            }
035        }, reinjectionFactory);
036    }
037
038    private static class ReinjectionInjector<T> extends AbstractInjector {
039        private final PicoContainer parent;
040
041        public ReinjectionInjector(Object componentKey, Class<T> componentImplementation, Parameter[] parameters, ComponentMonitor componentMonitor, PicoContainer parent, boolean useNames) {
042            super(componentKey, componentImplementation, parameters, componentMonitor, useNames);
043            this.parent = parent;
044        }
045
046        public Object getComponentInstance(PicoContainer container, Type into) throws PicoCompositionException {
047            return parent.getComponent(getComponentKey());
048        }
049
050    }
051}