Re: [aspectj-dev] Regular expressions in pointcut expressions

[Dean Wampler <dean@xxxxxxxxxxxxxxxxxxxxx>]

Wes Isberg wrote:
> Hi -
>
>
> > @Pre ("n != null")
> > public void setName (String n) { this.name = n; }
>
> ...
>
> > So, I would like to write aspects that find these occurrances of  DbC 
> > tests and their corresponding methods or fields and only advise the 
>
>
> Would using the AspectJ 5 support for annotations in pointcuts work for you?
>
> Wes

Wes,

Support for annotations does help. In fact, the best solution, given the 
current features in AJ5, is to use annotations like the original "@Pre", 
etc. to scope the PCDs down to those classes, methods and fields for 
which tests are defined, thereby reducing overhead.

Note that even if I tried something like this:

@Pre
public void setName(String n) { this.name = n; }
@PreImpl
public boolean preSetName(String n) { return n != null; }

@Pre
public String doSomething() { ... }
@PreImpl
public boolean preDoSomething() { ... }

and wrote pointcuts to match, it would further reduce the scope to only 
the full set of fields and methods that are involved, but still not 
achieve the 1-1 matching between a method/field and its corresponding 
tests. (I could use reflection to finish the job, however...)

Also, I'm trying to minimize the coding effort for users of C4J. If I 
can minimize the use of avoidable annotations, etc., that's a plus.

Anyway, it was during various experiments that I realized how the 
regular-expression and "exists" ideas would be beneficial.

dean

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