Load-Time Weaving aspect complexities

[jeffastorey]

Hi,

I'm trying to write an aspect whose pointcut detects a method call m on class A (so A.m()), but I want to specify what class the caller is. Does aspectjweaver and the aop.xml file allow me to specify things such as this, target, and within for a particular pointcut? If so, can someone please show me how?

Thank you,
Jeff

[oleg.zhurakousky]

The following link seem to have an answer
http://www.eclipse.org/aspectj/doc/n...iguration.html
Let us know if you still having an issue

[jeffastorey]

I had actually seen that link before, but that seems to show how to set includes and excludes for all aspects. I was just trying for a single aspect.

I basically wanted to try to do something like this:

          <aspectj>
            <aspects>
              <!-- define a concrete aspect inline -->
              <concrete-aspect name="com.xyz.tracing.MyTracing"
                               extends="tracing.AbstractTracing">
                <pointcut name="tracingScope" expression="call(* MyClass.myMethod(..))"/>
              </concrete-aspect>
            </aspects>

            <weaver options="-verbose">
              <include within="javax.*"/>
            </weaver>

          </aspectj>

As it is, this would make sure com.xyz.tracing.MyTracing would be executed on any call to MyClass.myMethod(), but I would also like it to only be executed when the "this" object (i.e. the caller) is of type MyCaller. So it would be 2 expressions combined into 1. Is that possible?

Thanks,
Jeff

[oleg.zhurakousky]

Something like this should work

 <aspectj>
            <aspects>
              <!-- define a concrete aspect inline -->
              <concrete-aspect name="com.xyz.tracing.MyTracing"
                               extends="tracing.AbstractTracing">
                <pointcut name="tracingScope(MyCaller mc)" expression="call(* MyClass.myMethod(..)) && this(mc)"/>
              </concrete-aspect>
            </aspects>

            <weaver options="-verbose">
              <include within="javax.*"/>
            </weaver>

</aspectj>

Let me know

[jeffastorey]

Oleg, thanks. That wasn't exactly the right syntax for the aop.xml file, but it got me close enough to find the right syntax. Appreciate it.

[oleg.zhurakousky]

Cool!

Could you please post the right syntax so others can benefit?

[jeffastorey]

Sure, I'd be happy to.

 <aspectj>
            <aspects>
              <!-- define a concrete aspect inline -->
              <concrete-aspect name="com.xyz.tracing.MyTracing"
                               extends="tracing.AbstractTracing">
                <pointcut name="tracingScope" expression="call(* MyClass.myMethod(..)) AND this(fully.qualifier.package.MyCaller)"/>
              </concrete-aspect>
            </aspects>

            <weaver options="-verbose">
              <include within="javax.*"/>
            </weaver>

</aspectj>