org.objectledge.pico.customization
Class CustomizedComponentAdapter

java.lang.Object
  org.objectledge.pico.customization.CustomizedComponentAdapter

All Implemented Interfaces:

org.picocontainer.ComponentAdapter

public class CustomizedComponentAdapter
extends Object
implements org.picocontainer.ComponentAdapter

An adapter for a component that is customized on behalf of a component that is asking for it.

When another component is being initialized and it depends on the component that is managed by this adapter (identified by the componentKey), the customizedContainerProvider is asked to produce an instance of the customized component. Thus, different components may recieve different instnaces of the managed component, depending on the customizedComponentProvider's semantics.

Version:

$Id: CustomizedComponentAdapter.java,v 1.15 2005/02/04 02:28:00 rafal Exp $

Author:

rafal@caltha.pl

Field Summary

private Object	componentKey
private CustomizedComponentProvider	customizedComponentProvider

Constructor Summary

CustomizedComponentAdapter(Object componentKey, CustomizedComponentProvider customizedComponentProvider)
Crates a new instance of the adapter.

Method Summary

void	accept(org.picocontainer.PicoVisitor visitor)
Class	getComponentImplementation()
Object	getComponentInstance(org.picocontainer.PicoContainer container)
Object	getComponentInstance(org.picocontainer.PicoContainer container, Object componentKey, Class componentImplementation) Returns a customized components instance.
Object	getComponentKey()
void	verify(org.picocontainer.PicoContainer container)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

componentKey

private Object componentKey

customizedComponentProvider

private CustomizedComponentProvider customizedComponentProvider

Constructor Detail

CustomizedComponentAdapter

public CustomizedComponentAdapter(Object componentKey,
                                  CustomizedComponentProvider customizedComponentProvider)

Crates a new instance of the adapter.

Parameters:

componentKey - the component key this adapter manages.

customizedComponentProvider - a provider of customized components.

Method Detail

getComponentInstance

public Object getComponentInstance(org.picocontainer.PicoContainer container)
                            throws org.picocontainer.PicoInitializationException,
                                   org.picocontainer.PicoIntrospectionException

Specified by:

getComponentInstance in interface org.picocontainer.ComponentAdapter

Throws:

org.picocontainer.PicoInitializationException

org.picocontainer.PicoIntrospectionException

getComponentInstance

public Object getComponentInstance(org.picocontainer.PicoContainer container,
                                   Object componentKey,
                                   Class componentImplementation)
                            throws org.picocontainer.PicoInitializationException,
                                   org.picocontainer.PicoIntrospectionException,
                                   UnsupportedKeyTypeException

Returns a customized components instance.

This method is called by the CustomizingConstructorComponentAdapter.

Parameters:

container - the container for resolving references.

componentKey - the key of the requesting component.

componentImplementation - the implemenation class of the requesting component.

Returns:

a customized component instance.

Throws:

org.picocontainer.PicoInitializationException - if the customized component cannot be instantiated.

org.picocontainer.PicoIntrospectionException - if there is a problem introspecting classes.

UnsupportedKeyTypeException - if the requesting component key if an unsupported type.

verify

public void verify(org.picocontainer.PicoContainer container)
            throws org.picocontainer.PicoVerificationException

Specified by:

verify in interface org.picocontainer.ComponentAdapter

Throws:

org.picocontainer.PicoVerificationException

getComponentImplementation

public Class getComponentImplementation()

Specified by:

getComponentImplementation in interface org.picocontainer.ComponentAdapter

getComponentKey

public Object getComponentKey()

Specified by:

getComponentKey in interface org.picocontainer.ComponentAdapter

accept

public void accept(org.picocontainer.PicoVisitor visitor)

Specified by:

accept in interface org.picocontainer.ComponentAdapter