From: Dean Wampler Date: 2007-06-14T02:53:42+09:00 Subject: Re: Advising JRuby code from AspectJ? ------=_Part_14923_12003582.1181757210883 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline "Advising" methods with behavior before, after, or around the method invocation itself is easy to do in Ruby. If your advice just needs to invoke other ruby code, then using these techniques would be better (probably) than trying to combine a Java-based AOP mechanism with JRuby classes, etc. There are also several basic AOP frameworks for Ruby, although they tend to be somewhat old or poorly documented. However, if you need your ruby classes to invoke java services, then it might make sense to try Spring AOP. I've been doing some work on AOP in Ruby and I'm interested in issues like this. Feel free to follow up with me privately if you would to discuss it further! dean On 6/13/07, Susan Davis wrote: > > We're developing a RESTful web application, and we're looking at running > Rails under JRuby for many of our services. The front end is likely to > be Java, as we're kitbashing an existing OSS project into something that > fits our needs a bit better. > > One of our big requirements is a billing subsystem that supports a wide > number of pricing models, and the ability for our sales/marketing people > to introduce new ones on the fly. Another is a robust auditing > subsystem. Both problems absolutely scream to be pulled out into > aspects, which is fine for the bits of the system written in Java, but > what about the Ruby code? I hear tell (handwave) that there are Ruby > constructs that resemble aspects (handwave, handwave), but I'm new > enough to Ruby to not have learned those patterns yet, and really, we'd > like to only have to write our billing/auditing instrumentation code once. > > Is there a good way to get AspectJ or Spring AOP aspects to advise JRuby > classes? Alternatively, has anyone tried to use Spring AOP to use a > JRuby class to advise Java code? Or is there some third possibility > that I'm overlooking? > > For that matter, where on Usenet is the good place to ask about AOP in > general? I don't see a specific group; is c.l.j.p the right place, or > does one simply not exist yet? > > Thanks in advance, > -- Sue -- > > -- > Susan Davis > > Sue needs developers! See http://futabachan.livejournal.com/145014.html > > -- Dean Wampler http://www.objectmentor.com http://www.aspectprogramming.com http://www.contract4j.org ------=_Part_14923_12003582.1181757210883--