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Re: [aspectj-users] Limiting depth of pointcut for subclasses

Could you explain a bit more about why you need to do this?


On 2/5/08 5:25 AM, "hermod.opstvedt@xxxxxxxxx" <hermod.opstvedt@xxxxxxxxx>
wrote:

> Hi
> 
> I was afraid there was no easy way - maybe we should ask for an
> enhancement to add a new attribute that will limit a Object+ construct.
> 
> Hermod
> 
> -----Original Message-----
> From: aspectj-users-bounces@xxxxxxxxxxx
> [mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of Gijs Peek
> Sent: Tuesday, February 05, 2008 2:20 PM
> To: aspectj-users@xxxxxxxxxxx
> Subject: Re: [aspectj-users] Limiting depth of pointcut for subclasses
> 
> 
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> Hash: SHA1
> 
> Although I fail to comprehend why you would ever need this (maybe you
> should consider modifying your design), my guess would be that you can
> only achieve such an effect by using the if() pointcut and applying
> reflection to determine the classes' location in the hierarchy (e.g., by
> using the Class.getInterfaces method). Your pointcut then would probably
> look something like pointcut pc(A obj):
>     this(obj) &&
> if(Arrays.asList(obj.getClass().getInterfaces()).contains(A.class)))
> 
> cheers,
>  - Gijs Peek
> 
> hermod.opstvedt@xxxxxxxxx wrote:
>> Limiting depth of pointcut for subclasses
>> 
>> Hi
>> 
>> Is there a short and easy way of shortening the depth of a pointcut?
>> The scenario is that I advise the construction of objects that
>> implement an interface. However I only want to advice the first child
>> in the hierarchy of implementation. I.E Interface A extends interface
>> I, Interface A1 extends interface A. Class C implements A and class C1
> 
>> implements A1. I only want to advice A (i.e construction of C). First
>> challenge is that interface I is the only known interface at design
>> time.
>> 
>> Hermod
>> 
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