[#IDEADEV-21651] spring + aop: this() designator should be aware of declare-parents advice

IDEA: Development

spring + aop: this() designator should be aware of declare-parents advice

Created: 25 Sep 07 21:58 Updated: 06 Dec 07 18:43

Component/s:

J2EE.Spring

Fix Version/s:

Selena 7.0.2

Original Estimate:

Unknown

Remaining Estimate:

Unknown

Time Spent:

Unknown

Build:	7,294
Fixed in build:	7,591

Description

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The "declare-parents" type of advice can add additional interface implementations to a bean (a.k.a. "mix-ins").

In Spring AOP, the "this()" designator matches against the type of the AOP proxy.
So, when combining these two features, one can use this() to match mix-in interfaces added by declare-parents:

<aop:config>                                                                                                                                          
  <aop:aspect id="usageTrackerAspect" ref="simpleAspectBean">                                                                                         
    <aop:declare-parents types-matching="foo.bar.aop.SimpleTarget+" implement-interface="foo.bar.aop.MyMixin" 
                         default-impl="foo.bar.aop.MyMixinImpl"/>
    <aop:around pointcut="this(foo.bar.aop.MyMixin)" method="around"/>                                                                                
  </aop:aspect>                                                                                                                                       
</aop:config>

Above example works as expected, but IDEA shows "This advice intercepts no methods".
In practice above example is more often used in "binding form", with the around advice method having a MyMixin m parameter, and using "this(m) as pointcut.

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Irina Petrovskaya - 12 Nov 07 10:07

checked in 8014