public class

DelegatingIntroductionInterceptor

extends IntroductionInfoSupport
implements IntroductionInterceptor
java.lang.Object
   ↳ org.springframework.aop.support.IntroductionInfoSupport
     ↳ org.springframework.aop.support.DelegatingIntroductionInterceptor

Class Overview

Convenient implementation of the IntroductionInterceptor interface.

Subclasses merely need to extend this class and implement the interfaces to be introduced themselves. In this case the delegate is the subclass instance itself. Alternatively a separate delegate may implement the interface, and be set via the delegate bean property.

Delegates or subclasses may implement any number of interfaces. All interfaces except IntroductionInterceptor are picked up from the subclass or delegate by default.

The suppressInterface method can be used to suppress interfaces implemented by the delegate but which should not be introduced to the owning AOP proxy.

An instance of this class is serializable if the delegate is.

See Also

Summary

[Expand]
Inherited Fields
From class org.springframework.aop.support.IntroductionInfoSupport
Public Constructors
DelegatingIntroductionInterceptor(Object delegate)
Construct a new DelegatingIntroductionInterceptor, providing a delegate that implements the interfaces to be introduced.
Protected Constructors
DelegatingIntroductionInterceptor()
Construct a new DelegatingIntroductionInterceptor.
Public Methods
Object invoke(MethodInvocation mi)
Subclasses may need to override this if they want to perform custom behaviour in around advice.
Protected Methods
Object doProceed(MethodInvocation mi)
Proceed with the supplied org.aopalliance.intercept.MethodInterceptor.
[Expand]
Inherited Methods
From class org.springframework.aop.support.IntroductionInfoSupport
From class java.lang.Object
From interface org.springframework.aop.DynamicIntroductionAdvice
From interface org.springframework.aop.IntroductionInfo

Public Constructors

public DelegatingIntroductionInterceptor (Object delegate)

Construct a new DelegatingIntroductionInterceptor, providing a delegate that implements the interfaces to be introduced.

Parameters
delegate the delegate that implements the introduced interfaces

Protected Constructors

protected DelegatingIntroductionInterceptor ()

Construct a new DelegatingIntroductionInterceptor. The delegate will be the subclass, which must implement additional interfaces.

Public Methods

public Object invoke (MethodInvocation mi)

Subclasses may need to override this if they want to perform custom behaviour in around advice. However, subclasses should invoke this method, which handles introduced interfaces and forwarding to the target.

Throws
Throwable

Protected Methods

protected Object doProceed (MethodInvocation mi)

Proceed with the supplied org.aopalliance.intercept.MethodInterceptor. Subclasses can override this method to intercept method invocations on the target object which is useful when an introduction needs to monitor the object that it is introduced into. This method is never called for MethodInvocation MethodInvocations on the introduced interfaces.

Throws
Throwable