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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.aop.support

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.springframework.aop.support .IntroductionInfoSupport

org.springframework.aop.support .DelegatingIntroductionInterceptor

DelegatingIntroductionInterceptor

public class DelegatingIntroductionInterceptor extends IntroductionInfoSupport implements IntroductionInterceptor(Code)

Convenient implementation of the org.springframework.aop.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.
author:
   Rod Johnson
author:
   Juergen Hoeller
since:
   16.11.2003
See Also:   DelegatingIntroductionInterceptor.suppressInterface
See Also:   DelegatePerTargetObjectIntroductionInterceptor

Constructor Summary
public	DelegatingIntroductionInterceptor(Object delegate) Construct a new DelegatingIntroductionInterceptor, providing a delegate that implements the interfaces to be introduced.
protected	DelegatingIntroductionInterceptor() Construct a new DelegatingIntroductionInterceptor.

Method Summary
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.
public Object	invoke(MethodInvocation mi) Subclasses may need to override this if they want to perform custom behaviour in around advice.

Constructor Detail

DelegatingIntroductionInterceptor
public DelegatingIntroductionInterceptor(Object delegate)(Code)
	Construct a new DelegatingIntroductionInterceptor, providing a delegate that implements the interfaces to be introduced. Parameters: delegate - the delegate that implements the introduced interfaces

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

Method Detail

doProceed
protected Object doProceed(MethodInvocation mi) throws Throwable(Code)
	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.

invoke
public Object invoke(MethodInvocation mi) throws Throwable(Code)
	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.

Fields inherited from org.springframework.aop.support.IntroductionInfoSupport

protected transient Log logger(Code)(Java Doc)
protected Set publishedInterfaces(Code)(Java Doc)

Methods inherited from org.springframework.aop.support.IntroductionInfoSupport

public Class[] getInterfaces()(Code)(Java Doc)
protected void implementInterfacesOnObject(Object delegate)(Code)(Java Doc)
public boolean implementsInterface(Class intf)(Code)(Java Doc)
final protected boolean isMethodOnIntroducedInterface(MethodInvocation mi)(Code)(Java Doc)
public void suppressInterface(Class intf)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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