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AspectJExpressionPointcut (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.aop.aspectj
Class AspectJExpressionPointcut

java.lang.Object
  org.springframework.aop.support.AbstractExpressionPointcut
      org.springframework.aop.aspectj.AspectJExpressionPointcut

All Implemented Interfaces:

Serializable, ClassFilter, IntroductionAwareMethodMatcher, MethodMatcher, Pointcut, ExpressionPointcut

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public class AspectJExpressionPointcut
extends AbstractExpressionPointcut
implements ClassFilter, IntroductionAwareMethodMatcher

Spring Pointcut implementation that uses the AspectJ weaver to evaluate a pointcut expression.

The pointcut expression value is an AspectJ expression. This can reference other pointcuts and use composition and other operations.

Naturally, as this is to be processed by Spring AOP's proxy-based model, only method execution pointcuts are supported.

Since:

2.0

Author:

Rob Harrop, Adrian Colyer, Rod Johnson, Juergen Hoeller, Ramnivas Laddad

See Also:

Serialized Form

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Field Summary

 

Fields inherited from interface org.springframework.aop.ClassFilter
TRUE

 

Fields inherited from interface org.springframework.aop.Pointcut
TRUE

 

Constructor Summary
AspectJExpressionPointcut()           Create a new default AspectJExpressionPointcut.
AspectJExpressionPointcut(Class declarationScope, String[] paramNames, Class[] paramTypes)           Create a new AspectJExpressionPointcut with the given settings.
AspectJExpressionPointcut(Set supportedPrimitives)           Create a new AspectJExpressionPointcut with the given supported primitives.

 

Method Summary
boolean	equals(Object other)
ClassFilter	getClassFilter()           Return the ClassFilter for this pointcut.
MethodMatcher	getMethodMatcher()           Return the MethodMatcher for this pointcut.
org.aspectj.weaver.tools.PointcutExpression	getPointcutExpression()           Return the underlying AspectJ pointcut expression.
int	hashCode()
boolean	isRuntime()           Is this MethodMatcher dynamic, that is, must a final call be made on the MethodMatcher.matches(java.lang.reflect.Method, Class, Object[]) method at runtime even if the 2-arg matches method returns true?
boolean	matches(Class targetClass)           Should the pointcut apply to the given interface or target class?
boolean	matches(Method method, Class targetClass)           Perform static checking whether the given method matches.
boolean	matches(Method method, Class targetClass, boolean beanHasIntroductions)           Perform static checking whether the given method matches.
boolean	matches(Method method, Class targetClass, Object[] args)           Check whether there a runtime (dynamic) match for this method, which must have matched statically.
void	setParameterNames(String[] names)           Set the parameter names for the pointcut.
void	setParameterTypes(Class[] types)           Set the parameter types for the pointcut.
void	setPointcutDeclarationScope(Class pointcutDeclarationScope)           Set the declaration scope for the pointcut.
String	toString()

 

Methods inherited from class org.springframework.aop.support.AbstractExpressionPointcut
getExpression, getLocation, onSetExpression, setExpression, setLocation

 

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Constructor Detail

AspectJExpressionPointcut

public AspectJExpressionPointcut()

Create a new default AspectJExpressionPointcut.

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AspectJExpressionPointcut

public AspectJExpressionPointcut(Set supportedPrimitives)

Create a new AspectJExpressionPointcut with the given supported primitives.

Parameters:

supportedPrimitives - Set of PointcutPrimitive instances

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AspectJExpressionPointcut

public AspectJExpressionPointcut(Class declarationScope,
                                 String[] paramNames,
                                 Class[] paramTypes)

Create a new AspectJExpressionPointcut with the given settings.

Parameters:

declarationScope - the declaration scope for the pointcut

paramNames - the parameter names for the pointcut

paramTypes - the parameter types for the pointcut

Method Detail

setPointcutDeclarationScope

public void setPointcutDeclarationScope(Class pointcutDeclarationScope)

Set the declaration scope for the pointcut.

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setParameterNames

public void setParameterNames(String[] names)

Set the parameter names for the pointcut.

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setParameterTypes

public void setParameterTypes(Class[] types)

Set the parameter types for the pointcut.

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getClassFilter

public ClassFilter getClassFilter()

Description copied from interface: Pointcut

Return the ClassFilter for this pointcut.

Specified by:

getClassFilter in interface Pointcut

Returns:

the ClassFilter (never null)

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getMethodMatcher

public MethodMatcher getMethodMatcher()

Description copied from interface: Pointcut

Return the MethodMatcher for this pointcut.

Specified by:

getMethodMatcher in interface Pointcut

Returns:

the MethodMatcher (never null)

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getPointcutExpression

public org.aspectj.weaver.tools.PointcutExpression getPointcutExpression()

Return the underlying AspectJ pointcut expression.

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matches

public boolean matches(Class targetClass)

Description copied from interface: ClassFilter

Should the pointcut apply to the given interface or target class?

Specified by:

matches in interface ClassFilter

Parameters:

targetClass - the candidate target class

Returns:

whether the advice should apply to the given target class

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matches

public boolean matches(Method method,
                       Class targetClass,
                       boolean beanHasIntroductions)

Description copied from interface: IntroductionAwareMethodMatcher

Perform static checking whether the given method matches. This may be invoked instead of the 2-arg MethodMatcher.matches(java.lang.reflect.Method, Class) method if the caller supports the extended IntroductionAwareMethodMatcher interface.

Specified by:

matches in interface IntroductionAwareMethodMatcher

Parameters:

method - the candidate method

targetClass - the target class (may be null, in which case the candidate class must be taken to be the method's declaring class)

beanHasIntroductions - true if the object on whose behalf we are asking is the subject on one or more introductions; false otherwise

Returns:

whether or not this method matches statically

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matches

public boolean matches(Method method,
                       Class targetClass)

Description copied from interface: MethodMatcher

Perform static checking whether the given method matches. If this returns false or if the MethodMatcher.isRuntime() method returns false, no runtime check (i.e. no. MethodMatcher.matches(java.lang.reflect.Method, Class, Object[]) call) will be made.

Specified by:

matches in interface MethodMatcher

Parameters:

method - the candidate method

targetClass - the target class (may be null, in which case the candidate class must be taken to be the method's declaring class)

Returns:

whether or not this method matches statically

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isRuntime

public boolean isRuntime()

Description copied from interface: MethodMatcher

Is this MethodMatcher dynamic, that is, must a final call be made on the MethodMatcher.matches(java.lang.reflect.Method, Class, Object[]) method at runtime even if the 2-arg matches method returns true?

Can be invoked when an AOP proxy is created, and need not be invoked again before each method invocation,

Specified by:

isRuntime in interface MethodMatcher

Returns:

whether or not a runtime match via the 3-arg MethodMatcher.matches(java.lang.reflect.Method, Class, Object[]) method is required if static matching passed

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matches

public boolean matches(Method method,
                       Class targetClass,
                       Object[] args)

Description copied from interface: MethodMatcher

Check whether there a runtime (dynamic) match for this method, which must have matched statically.

This method is invoked only if the 2-arg matches method returns true for the given method and target class, and if the MethodMatcher.isRuntime() method returns true. Invoked immediately before potential running of the advice, after any advice earlier in the advice chain has run.

Specified by:

matches in interface MethodMatcher

Parameters:

method - the candidate method

targetClass - the target class (may be null, in which case the candidate class must be taken to be the method's declaring class)

args - arguments to the method

Returns:

whether there's a runtime match

See Also:

MethodMatcher.matches(Method, Class)

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equals

public boolean equals(Object other)

Overrides:

equals in class Object

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hashCode

public int hashCode()

Overrides:

hashCode in class Object

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toString

public String toString()

Overrides:

toString in class Object

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