com.randomcoder.dao.finder
Class FinderIntroductionInterceptor

java.lang.Object
  com.randomcoder.dao.finder.FinderIntroductionInterceptor

All Implemented Interfaces:

Advice, Interceptor, MethodInterceptor, DynamicIntroductionAdvice, IntroductionInterceptor

public class FinderIntroductionInterceptor
extends Object
implements IntroductionInterceptor

Advisor used to supplement generic dao with type-specific query interfaces.

For any method beginning with "find", "list", "iterate", this interceptor will use the FinderExecutor to call a Hibernate named query.

Any method ending with InRange will be executed using a paged result set.

Inspired by Per Mellqvist's IBM developerWorks article, Don't repeat the DAO!.

 Copyright (c) 2006-2007, Craig Condit. All rights reserved.
 
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Constructor Summary

FinderIntroductionInterceptor()

Method Summary

boolean	implementsInterface(Class intf) Determines if this interceptor implements the given interface.
Object	invoke(MethodInvocation methodInvocation) Invokes the given method.

Methods inherited from class java.lang.Object

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

Constructor Detail

FinderIntroductionInterceptor

public FinderIntroductionInterceptor()

Method Detail

invoke

public Object invoke(MethodInvocation methodInvocation)
              throws Throwable

Invokes the given method.

Specified by:

invoke in interface MethodInterceptor

Parameters:

methodInvocation - method invocation

Throws:

Throwable - if target method throws an exception

implementsInterface

public boolean implementsInterface(Class intf)

Determines if this interceptor implements the given interface.

Specified by:

implementsInterface in interface DynamicIntroductionAdvice

Parameters:

intf - inteface to check

Returns:

true if intf is a subclass of FinderExecutor