org.codehaus.aspectwerkz.aspect
Class AbstractAspectContainer

java.lang.Object
  org.codehaus.aspectwerkz.aspect.AbstractAspectContainer

All Implemented Interfaces:

AspectContainer

Direct Known Subclasses:

DefaultAspectContainerStrategy

public abstract class AbstractAspectContainer
extends Object
implements AspectContainer

Abstract base class for the aspect container implementations.

Author:

Jonas BonŽr , Alexandre Vasseur

Field Summary

protected Object[]	ARRAY_WITH_SINGLE_ASPECT_CONTEXT An array with the single aspect context, needed to save one array creation per invocation.
static int	ASPECT_CONSTRUCTION_TYPE_ASPECT_CONTEXT
static int	ASPECT_CONSTRUCTION_TYPE_DEFAULT
static int	ASPECT_CONSTRUCTION_TYPE_UNKNOWN
static Object[]	EMPTY_OBJECT_ARRAY
protected Map	m_adviceInfos Maps the advice infos to the hash codes of the the matching advice method.
protected AspectContext	m_aspectContext The aspect context prototype.
protected int	m_constructionType The aspect construction type.
protected Map	m_perClass Holds references to the per class aspect instances.
protected Map	m_perInstance Holds references to the per instance aspect instances.
protected Object	m_perJvm Holds a reference to the sole per JVM aspect instance.
protected Map	m_perThread Holds references to the per thread aspect instances.

Constructor Summary

AbstractAspectContainer(AspectContext aspectContext)
Creates a new aspect container strategy.

Method Summary

Object	aspectOf() asm Creates a new perJVM cross-cutting instance, if it already exists then return it.
Object	aspectOf(Class klass) Creates a new perClass cross-cutting instance, if it already exists then return it.
Object	aspectOf(Object instance) Creates a new perInstance cross-cutting instance, if it already exists then return it.
Object	aspectOf(Thread thread) Creates a new perThread cross-cutting instance, if it already exists then return it.
protected abstract Object	createAspect() To be implemented by the concrete aspect containers.
AspectContext	getContext() Returns the context.

Methods inherited from class java.lang.Object

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

Field Detail

ASPECT_CONSTRUCTION_TYPE_UNKNOWN

public static final int ASPECT_CONSTRUCTION_TYPE_UNKNOWN

See Also:

Constant Field Values

ASPECT_CONSTRUCTION_TYPE_DEFAULT

public static final int ASPECT_CONSTRUCTION_TYPE_DEFAULT

See Also:

Constant Field Values

ASPECT_CONSTRUCTION_TYPE_ASPECT_CONTEXT

public static final int ASPECT_CONSTRUCTION_TYPE_ASPECT_CONTEXT

See Also:

Constant Field Values

EMPTY_OBJECT_ARRAY

public static final Object[] EMPTY_OBJECT_ARRAY

ARRAY_WITH_SINGLE_ASPECT_CONTEXT

protected final Object[] ARRAY_WITH_SINGLE_ASPECT_CONTEXT

An array with the single aspect context, needed to save one array creation per invocation.

m_constructionType

protected int m_constructionType

The aspect construction type.

m_aspectContext

protected final AspectContext m_aspectContext

The aspect context prototype.

m_perJvm

protected Object m_perJvm

Holds a reference to the sole per JVM aspect instance.

m_perClass

protected final Map m_perClass

Holds references to the per class aspect instances.

m_perInstance

protected final Map m_perInstance

Holds references to the per instance aspect instances.

m_perThread

protected final Map m_perThread

Holds references to the per thread aspect instances.

m_adviceInfos

protected final Map m_adviceInfos

Maps the advice infos to the hash codes of the the matching advice method.

Constructor Detail

AbstractAspectContainer

public AbstractAspectContainer(AspectContext aspectContext)

Creates a new aspect container strategy.

Parameters:

aspectContext - the context

Method Detail

getContext

public AspectContext getContext()

Returns the context.

Specified by:

getContext in interface AspectContainer

Returns:

the context

aspectOf

public Object aspectOf()

asm Creates a new perJVM cross-cutting instance, if it already exists then return it.

Specified by:

aspectOf in interface AspectContainer

Returns:

the cross-cutting instance

aspectOf

public Object aspectOf(Class klass)

Creates a new perClass cross-cutting instance, if it already exists then return it.

Specified by:

aspectOf in interface AspectContainer

Parameters:

klass -

Returns:

the cross-cutting instance

aspectOf

public Object aspectOf(Object instance)

Creates a new perInstance cross-cutting instance, if it already exists then return it.

Specified by:

aspectOf in interface AspectContainer

Parameters:

instance -

Returns:

the cross-cutting instance

aspectOf

public Object aspectOf(Thread thread)

Creates a new perThread cross-cutting instance, if it already exists then return it.

Specified by:

aspectOf in interface AspectContainer

Parameters:

thread - the thread for the aspect

Returns:

the cross-cutting instance

createAspect

protected abstract Object createAspect()

To be implemented by the concrete aspect containers.

Should return a new aspect instance.

Returns:

a new aspect instance