True. But, on the one hand it would be relatively easy to have an aspect put the code in wherever the annotation is used. But on the other hand: - it should also be easy to add new annotations using hivemind - i would like throw any exceptions about mis-use of the annotation when the class is constructed, not when the method is executed - doing it using tapestry gives me access to classes that make it easier such as EnhancementOperation and such
On Thu, 2006-05-25 at 10:43 -0400, James Carman wrote: > Don't get me wrong, I understand your reluctance to introduce AspectJ into > your build environment. But, this is a perfect case for AspectJ, IMHO. > > -----Original Message----- > From: Dan Adams [mailto:[EMAIL PROTECTED] > Sent: Thursday, May 25, 2006 10:39 AM > To: Tapestry users > Subject: RE: Help in writing a custom annotation > > I thought about using it but I thought that putting in an annotation > seemed like a natural course of action. Plus, using aspecj would put > some constraints on the project build environment. > > On Thu, 2006-05-25 at 10:02 -0400, James Carman wrote: > > Have you looked into AspectJ? > > > > -----Original Message----- > > From: Dan Adams [mailto:[EMAIL PROTECTED] > > Sent: Thursday, May 25, 2006 10:00 AM > > To: Tapestry users > > Subject: RE: Help in writing a custom annotation > > > > Okay, my annotation is called @Once and if put on accessor will make > > sure that the method is only executed once and then the return value is > > cached. Any further calls to the method will just return the saved > > value. I've got pretty far but I think I'm stuck as I want to do > > something that I could do with javassist but I'm not sure how to do > > within the tapestry enhancement classes. I've attached what I have so > > far and I would greatly appreciated it if someone could give me some > > suggestions on what to do. My big problem is: > > > > - I could add code at the beginning and end of the method with javassit > > but can't see a way to do that > > - Perhaps I could somehow rename the old method to something else and > > put in a new method that calls it? > > > > Thanks a lot. > > > > On Thu, 2006-05-25 at 07:11 -0400, James Carman wrote: > > > I'd look at the one that injects messages, or beans, or even the one > that > > I > > > wrote for "autowiring" (available in SVN on the 4.1 branch). > > > > > > -----Original Message----- > > > From: Dan Adams [mailto:[EMAIL PROTECTED] > > > Sent: Wednesday, May 24, 2006 10:44 PM > > > To: Tapestry users > > > Subject: Help in writing a custom annotation > > > > > > I want to write an annotation that will intercept a method and add a > > > property to the class. I've started digging around in some of the > > > annotation sources but it's going pretty slow. Can someone point me at > > > the right place to look for where to start? > > > -- Dan Adams Software Engineer Interactive Factory 617.235.5857 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
