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

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org.springframework.aop.support
Class AopUtils

java.lang.Object
  org.springframework.aop.support.AopUtils

public abstract class AopUtils
extends Object
extends Object

Utility methods for AOP support code. Mainly for internal use within Spring's AOP support.

See AopProxyUtils for a collection of framework-specific AOP utility methods which depend on internals of Spring's AOP framework implementation.

Author:: Rod Johnson, Juergen Hoeller, Rob Harrop
See Also:: AopProxyUtils

Constructor Summary

AopUtils()


Method Summary

static boolean canApply(Advisor advisor, Class targetClass)
          Can the given advisor apply at all on the given class?

static boolean canApply(Advisor advisor, Class targetClass, boolean hasIntroductions)
          Can the given advisor apply at all on the given class?

static boolean canApply(Pointcut pc, Class targetClass)
          Can the given pointcut apply at all on the given class?

static boolean canApply(Pointcut pc, Class targetClass, boolean hasIntroductions)
          Can the given pointcut apply at all on the given class?

static List findAdvisorsThatCanApply(List candidateAdvisors, Class clazz)
          Determine the sublist of the candidateAdvisors list that is applicable to the given class.

static Method getMostSpecificMethod(Method method, Class targetClass)
          Given a method, which may come from an interface, and a target class used in the current AOP invocation, find the corresponding target method if there is one.

static Class getTargetClass(Object candidate)
          Determine the target class of the given bean instance, which might be an AOP proxy.

static Object invokeJoinpointUsingReflection(Object target, Method method, Object[] args)
          Invoke the given target via reflection, as part of an AOP method invocation.

static boolean isAopProxy(Object object)
          Check whether the given object is a JDK dynamic proxy or a CGLIB proxy.

static boolean isCglibProxy(Object object)
          Check whether the given object is a CGLIB proxy.

static boolean isCglibProxyClass(Class clazz)
          Check whether the specified class is a CGLIB-generated class.

static boolean isEqualsMethod(Method method)
          Determine whether the given method is an "equals" method.

static boolean isHashCodeMethod(Method method)
          Determine whether the given method is a "hashCode" method.

static boolean isJdkDynamicProxy(Object object)
          Check whether the given object is a JDK dynamic proxy.

static boolean isToStringMethod(Method method)
          Determine whether the given method is a "toString" method.

Methods inherited from class java.lang.Object

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

Constructor Summary
`AopUtils()`

Method Summary
`static boolean`	`canApply(Advisor advisor, Class targetClass)` Can the given advisor apply at all on the given class?
`static boolean`	`canApply(Advisor advisor, Class targetClass, boolean hasIntroductions)` Can the given advisor apply at all on the given class?
`static boolean`	`canApply(Pointcut pc, Class targetClass)` Can the given pointcut apply at all on the given class?
`static boolean`	`canApply(Pointcut pc, Class targetClass, boolean hasIntroductions)` Can the given pointcut apply at all on the given class?
`static List`	`findAdvisorsThatCanApply(List candidateAdvisors, Class clazz)` Determine the sublist of the `candidateAdvisors` list that is applicable to the given class.
`static Method`	`getMostSpecificMethod(Method method, Class targetClass)` Given a method, which may come from an interface, and a target class used in the current AOP invocation, find the corresponding target method if there is one.
`static Class`	`getTargetClass(Object candidate)` Determine the target class of the given bean instance, which might be an AOP proxy.
`static Object`	`invokeJoinpointUsingReflection(Object target, Method method, Object[] args)` Invoke the given target via reflection, as part of an AOP method invocation.
`static boolean`	`isAopProxy(Object object)` Check whether the given object is a JDK dynamic proxy or a CGLIB proxy.
`static boolean`	`isCglibProxy(Object object)` Check whether the given object is a CGLIB proxy.
`static boolean`	`isCglibProxyClass(Class clazz)` Check whether the specified class is a CGLIB-generated class.
`static boolean`	`isEqualsMethod(Method method)` Determine whether the given method is an "equals" method.
`static boolean`	`isHashCodeMethod(Method method)` Determine whether the given method is a "hashCode" method.
`static boolean`	`isJdkDynamicProxy(Object object)` Check whether the given object is a JDK dynamic proxy.
`static boolean`	`isToStringMethod(Method method)` Determine whether the given method is a "toString" method.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

AopUtils

public AopUtils()

Method Detail

isAopProxy

public static boolean isAopProxy(Object object)

Check whether the given object is a JDK dynamic proxy or a CGLIB proxy.

Parameters:: object - the object to check
See Also:: isJdkDynamicProxy(java.lang.Object), isCglibProxy(java.lang.Object)

isJdkDynamicProxy

public static boolean isJdkDynamicProxy(Object object)

Check whether the given object is a JDK dynamic proxy.

Parameters:: object - the object to check
See Also:: Proxy.isProxyClass(java.lang.Class)

isCglibProxy

public static boolean isCglibProxy(Object object)

Check whether the given object is a CGLIB proxy.

Parameters:: object - the object to check

isCglibProxyClass

public static boolean isCglibProxyClass(Class clazz)

Check whether the specified class is a CGLIB-generated class.

Parameters:: clazz - the class to check

getTargetClass

public static Class getTargetClass(Object candidate)

Determine the target class of the given bean instance, which might be an AOP proxy.

Returns the target class for an AOP proxy and the plain class else.

Parameters:: candidate - the instance to check (might be an AOP proxy)
Returns:: the target class (or the plain class of the given object as fallback)
See Also:: TargetClassAware.getTargetClass()

isEqualsMethod

public static boolean isEqualsMethod(Method method)

Determine whether the given method is an "equals" method.

See Also:: Object.equals(java.lang.Object)

isHashCodeMethod

public static boolean isHashCodeMethod(Method method)

Determine whether the given method is a "hashCode" method.

See Also:: Object.hashCode()

isToStringMethod

public static boolean isToStringMethod(Method method)

Determine whether the given method is a "toString" method.

See Also:: Object.toString()

getMostSpecificMethod

public static Method getMostSpecificMethod(Method method,
                                           Class targetClass)

Given a method, which may come from an interface, and a target class used in the current AOP invocation, find the corresponding target method if there is one. E.g. the method may be IFoo.bar() and the target class may be DefaultFoo. In this case, the method may be DefaultFoo.bar(). This enables attributes on that method to be found.

Parameters:: method - the method to be invoked, which may come from an interface; targetClass - the target class for the current invocation. May be null or may not even implement the method.
Returns:: the specific target method, or the original method if the targetClass doesn't implement it or is null

canApply

public static boolean canApply(Pointcut pc,
                               Class targetClass)

Can the given pointcut apply at all on the given class?

This is an important test as it can be used to optimize out a pointcut for a class.

Parameters:: pc - the static or dynamic pointcut to check; targetClass - the class to test
Returns:: whether the pointcut can apply on any method

canApply

public static boolean canApply(Pointcut pc,
                               Class targetClass,
                               boolean hasIntroductions)

Can the given pointcut apply at all on the given class?

This is an important test as it can be used to optimize out a pointcut for a class.

Parameters:: pc - the static or dynamic pointcut to check; targetClass - the class to test; hasIntroductions - whether or not the advisor chain for this bean includes any introductions
Returns:: whether the pointcut can apply on any method

canApply

public static boolean canApply(Advisor advisor,
                               Class targetClass)

Can the given advisor apply at all on the given class? This is an important test as it can be used to optimize out a advisor for a class.

Parameters:: advisor - the advisor to check; targetClass - class we're testing
Returns:: whether the pointcut can apply on any method

canApply

public static boolean canApply(Advisor advisor,
                               Class targetClass,
                               boolean hasIntroductions)

Can the given advisor apply at all on the given class? This is an important test as it can be used to optimize out a advisor for a class. This version also takes into account introductions, for IntroductionAwareMethodMatchers

Parameters:: advisor - the advisor to check; targetClass - class we're testing; hasIntroductions - whether or not the advisor chain for this bean includes any introductions
Returns:: whether the pointcut can apply on any method

findAdvisorsThatCanApply

public static List findAdvisorsThatCanApply(List candidateAdvisors,
                                            Class clazz)

Determine the sublist of the candidateAdvisors list that is applicable to the given class.

Parameters:: candidateAdvisors - the Advisors to evaluate; clazz - the target class
Returns:: sublist of Advisors that can apply to an object of the given class (may be the incoming List as-is)

invokeJoinpointUsingReflection

public static Object invokeJoinpointUsingReflection(Object target,
                                                    Method method,
                                                    Object[] args)
                                             throws Throwable

Invoke the given target via reflection, as part of an AOP method invocation.

Parameters:: target - the target object; method - the method to invoke; args - the arguments for the method
Returns:: the invocation result, if any
Throws:: Throwable - if thrown by the target method; AopInvocationException - in case of a reflection error

Overview

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Class

Use

Tree

Deprecated

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Help

The Spring Framework

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SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

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

org.springframework.aop.support Class AopUtils

AopUtils

isAopProxy

isJdkDynamicProxy

isCglibProxy

isCglibProxyClass

getTargetClass

isEqualsMethod

isHashCodeMethod

isToStringMethod

getMostSpecificMethod

canApply

canApply

canApply

canApply

findAdvisorsThatCanApply

invokeJoinpointUsingReflection

org.springframework.aop.support
Class AopUtils