org.springframework.aop

接口 Advisor

所有已知子接口:

InstantiationModelAwarePointcutAdvisor, IntroductionAdvisor, PointcutAdvisor

所有已知实现类:

AbstractBeanFactoryPointcutAdvisor, AbstractGenericPointcutAdvisor, AbstractPointcutAdvisor, AspectJExpressionPointcutAdvisor, AspectJPointcutAdvisor, DeclareParentsAdvisor, DefaultBeanFactoryPointcutAdvisor, DefaultIntroductionAdvisor, DefaultPointcutAdvisor, NameMatchMethodPointcutAdvisor, ReflectiveAspectJAdvisorFactory.SyntheticInstantiationAdvisor, RegexpMethodPointcutAdvisor, StaticMethodMatcherPointcutAdvisor

public interface Advisor

Base interface holding AOP advice (action to take at a joinpoint) and a filter determining the applicability of the advice (such as a pointcut). This interface is not for use by Spring users, but to allow for commonality in support for different types of advice.

Spring AOP is based around around advice delivered via method interception, compliant with the AOP Alliance interception API. The Advisor interface allows support for different types of advice, such as before and after advice, which need not be implemented using interception.

作者:

Rod Johnson, Juergen Hoeller

字段概要

字段

限定符和类型	字段和说明
static Advice	EMPTY_ADVICE Common placeholder for an empty Advice to be returned from getAdvice() if no proper advice has been configured (yet).

方法概要

限定符和类型	方法和说明
Advice	getAdvice() Return the advice part of this aspect.
boolean	isPerInstance() Return whether this advice is associated with a particular instance (for example, creating a mixin) or shared with all instances of the advised class obtained from the same Spring bean factory.

字段详细资料

EMPTY_ADVICE

static final Advice EMPTY_ADVICE

Common placeholder for an empty Advice to be returned from getAdvice() if no proper advice has been configured (yet).

从以下版本开始:

5.0

方法详细资料

getAdvice

Advice getAdvice()

Return the advice part of this aspect. An advice may be an interceptor, a before advice, a throws advice, etc.

返回:

the advice that should apply if the pointcut matches

另请参阅:

MethodInterceptor, BeforeAdvice, ThrowsAdvice, AfterReturningAdvice

isPerInstance

boolean isPerInstance()

Return whether this advice is associated with a particular instance (for example, creating a mixin) or shared with all instances of the advised class obtained from the same Spring bean factory.

Note that this method is not currently used by the framework. Typical Advisor implementations always return true. Use singleton/prototype bean definitions or appropriate programmatic proxy creation to ensure that Advisors have the correct lifecycle model.

返回:

whether this advice is associated with a particular target instance