org.springframework.aop.aspectj.annotation
Class AspectMetadata

java.lang.Object
  org.springframework.aop.aspectj.annotation.AspectMetadata

public class AspectMetadata
extends java.lang.Object

Metadata for an AspectJ aspect class, with an additional Spring AOP pointcut for the per clause.

Uses AspectJ 5 AJType reflection API, so is only supported on Java 5. Enables us to work with different AspectJ instantiation models such as "singleton", "pertarget" and "perthis".

Since:

2.0

Author:

Rod Johnson, Juergen Hoeller

See Also:

AspectJExpressionPointcut

Field Summary

private AjType	ajType AspectJ reflection information (AspectJ 5 / Java 5 specific).
private java.lang.String	aspectName The name of this aspect as defined to Spring (the bean name) - allows us to determine if two pieces of advice come from the same aspect and hence their relative precedence.
private Pointcut	perClausePointcut Spring AOP pointcut corresponding to the per clause of the aspect.

Constructor Summary

AspectMetadata(java.lang.Class<?> aspectClass, java.lang.String aspectName)
Create a new AspectMetadata instance for the given aspect class.

Method Summary

private java.lang.String	findPerClause(java.lang.Class<?> aspectClass) Extract contents from String of form pertarget(contents).
AjType	getAjType() Return AspectJ reflection information.
java.lang.Class	getAspectClass() Return the aspect class.
java.lang.String	getAspectName() Return the aspect class.
Pointcut	getPerClausePointcut() Return a Spring pointcut expression for a singleton aspect.
boolean	isLazilyInstantiated() Return whether the aspect needs to be lazily instantiated.
boolean	isPerThisOrPerTarget() Return whether the aspect is defined as "perthis" or "pertarget".
boolean	isPerTypeWithin() Return whether the aspect is defined as "pertypewithin".

Methods inherited from class java.lang.Object

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

Field Detail

ajType

private final AjType ajType

AspectJ reflection information (AspectJ 5 / Java 5 specific).

perClausePointcut

private final Pointcut perClausePointcut

Spring AOP pointcut corresponding to the per clause of the aspect. Will be the Pointcut.TRUE canonical instance in the case of a singleton, otherwise an AspectJExpressionPointcut.

aspectName

private java.lang.String aspectName

The name of this aspect as defined to Spring (the bean name) - allows us to determine if two pieces of advice come from the same aspect and hence their relative precedence.

Constructor Detail

AspectMetadata

public AspectMetadata(java.lang.Class<?> aspectClass,
                      java.lang.String aspectName)

Create a new AspectMetadata instance for the given aspect class.

Parameters:

aspectClass - the aspect class

aspectName - the name of the aspect

Method Detail

findPerClause

private java.lang.String findPerClause(java.lang.Class<?> aspectClass)

Extract contents from String of form pertarget(contents).

getAjType

public AjType getAjType()

Return AspectJ reflection information.

getAspectClass

public java.lang.Class getAspectClass()

Return the aspect class.

getAspectName

public java.lang.String getAspectName()

Return the aspect class.

getPerClausePointcut

public Pointcut getPerClausePointcut()

Return a Spring pointcut expression for a singleton aspect. (e.g. Pointcut.TRUE if it's a singleton).

isPerThisOrPerTarget

public boolean isPerThisOrPerTarget()

Return whether the aspect is defined as "perthis" or "pertarget".

isPerTypeWithin

public boolean isPerTypeWithin()

Return whether the aspect is defined as "pertypewithin".

isLazilyInstantiated

public boolean isLazilyInstantiated()

Return whether the aspect needs to be lazily instantiated.