Thanks Ron About this shaodw class... Even if i have a shadow class for each original class The set() advice still need runtime reflection or a switch statement to set the shadow field ?! I cant find too many examples on set()/get()
UPDATE The map solution is easy and works I thought about injecting a buddy *object* into each real object (i.e. no new classes), using aspectj to skip all method execution, and only use the fields for storage. Is there some execution side effect which i wont be able to skip? TIA On Sat, Mar 9, 2013 at 4:20 PM, Ron DiFrango < rdifra...@captechconsulting.com> wrote: > Without creating a aspectj shadow class that gets "injected" via an > intertype declaration, I don't see a way to do it without reflection and/or > using the map approached referenced in your post. > > *Ron DiFrango* > Director / Architect | CapTech > (804) 855-9196 | > *rdifra...@captechconsulting.com<https://email4.captechventures.com/owa/UrlBlockedError.aspx> > * > ------------------------------ > *From:* aspectj-users-boun...@eclipse.org [ > aspectj-users-boun...@eclipse.org] on behalf of y a [ > yaniv.azriel.sams...@gmail.com] > *Sent:* Saturday, March 09, 2013 7:18 AM > *To:* aspectj-users@eclipse.org > *Subject:* [aspectj-users] Adding a new buddy field for EVERY existing > field in a class ?! > > I want an aspect to store the old value for each field set operation > So if a class has 3 long fields, i now need 3 new fields in the aspect > > Is this possible ?! > And is there a suitable ajc syntax to access such a buddy field in a set() > advice ? > > my example: > > aspect to "print" the field changes, but i need the new fields to > "store" the values > > import java.io.*; > import org.aspectj.lang.reflect.FieldSignature; > > aspect AspectField { > before(long newval): set(long *) && args(newval) { > > FieldSignature fs; > fs = (FieldSignature)thisJoinPointStaticPart.getSignature(); > System.out.println(fs.getFieldType()); > System.out.println("FIELD SET TO " + newval); > > // i want to store the newval here in a "buddy field" > } > } > > [[ Eventually i want all of this to be done statically with out > reflection but one bridge at a time.. ]] > [[ > http://stackoverflow.com/questions/6698203/exposing-previous-value-in-aspectj-set-pointcut- > this discussion stores all the fields in a single map - i dis like > solution for performance.. ]] > > > TIA > > _______________________________________________ > aspectj-users mailing list > aspectj-users@eclipse.org > https://dev.eclipse.org/mailman/listinfo/aspectj-users > >
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