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Re: [aspectj-dev] Specifying pointcuts in an external file
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Yes, my question was probably not so clear. Let me take an example.
Let's say that I want to weave all methods declared by an interface, I will have to write the following pointcut:
@Pointcut("execution(*
com.foo.interface.a..*(..))")
public void anyFooInterfaceA() {
}
And then I write the advice:
@Before("(anyFooInterfaceA())")
public void beforeAnyInterface(JoinPoint.StaticPart
thisJoinPointStaticPart, JoinPoint thisJoinPoint) {
...
Now let say I need to apply the same advice for more interfaces, the pointcut will become:
@Pointcut("(execution(* com.foo.interface.a..*
(..)) && execution(* com.foo.interface.b..*(..)) && execution(* com.bar.interface.c..*(..)))")
public void anyFooOrBarInterfaces() {
}
The project I am working on requires a lot of interfaces to be weaved and more interfaces will be added in the future. I am trying to find an easy way to add all the existing interfaces (and the future ones) into my aspect class without having (1) huge pointcut definition or (2) to modify the aspect code each time a new interface that need to be weaved is added. Is there an elegant way to achieve that? Or is there a way to specify an external file that will contain the list of pointcut to take into consideration for a specific advice. For example:
@Before(file="pointcut.txt")
Thanks a lot
Regards,
Jean
On 10/25/06, Matthew Webster <
matthew_webster@xxxxxxxxxx> wrote:
Jean,
I am not sure I fully understand your
question. Are you writing pointcuts that match annotations declared in
the classes you wish to advise? I this statement puzzles me: "each
time a pointcut changes, I will have to change the annotation".
Can you post an example of what you are trying to do?
Matthew Webster
AOSD Project
Java Technology Centre, MP146
IBM Hursley Park, Winchester, SO21 2JN, England
Telephone: +44 196 2816139 (external) 246139 (internal)
Email: Matthew Webster/UK/IBM @ IBMGB, matthew_webster@xxxxxxxxxx
http://w3.hursley.ibm.com/~websterm/
Hi,
Is it possible to specify pointcuts in an external file when using the
annotation AspectJ? I am asking this question because our project will
contain a lot of different pointcuts: what is the easiest way to define
them? Using annotation is a bit a pain because each time a pointcut changes,
I will have to change the annotation. Any method to load these pointcuts
from an external source?
Thanks for any help,
Jean
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