At 08:15 AM 5/22/2002 -0500, Dave Bryson wrote: >On Tuesday 21 May 2002 06:33 pm, you wrote: > > So I've been thinking, instead of programming, and I came up with the > > following idea: What if I use my WebWork ActionSupport beans in a message > > queuing system? The views.properties & a dispatcher would direct the > > messages between various ActionSupport beans. This is probably treading on > > the area of JMS and message driven > > beans, but I was wondering what the rest of you thought. It seems like it > > could do things like > > handle error conditions well, multicast with a comma separated list of > > recipients, and select > > between various output queues using views.properties. How would > > persistence be implemented? > >What are you trying to accomplish? Do you want the Actions to serve as a >bunch of workers that communicate via the message queue?
My current task is to input a list of drawing numbers, get the highest revision of the drawings from an Oracle DBMS, fatten the lines on the drawing, convert the drawing to a multipage PDF, and write the PDFs to a directory in preparation for burning to CD or DVD. I've done this task 3 times already, using JMS, Oracle AQ, and XML with directories. In order to make the system reconfigurable, I've had to do things like submit the pipeline that drawings go through in advance, and then for each process, tell it which queue to pull from. It would be VERY nice if I could put all that decision making into a views.properties file or database table, to make the system reconfigurable (say we wanted to skip the fatten step, or the fatten step gets incorporated into the PDF conversion). >Have you looked at Jini and JavaSpaces? I think I looked at JavaSpaces--what persistence technology do they use? We only have a uniprocessor machine at this point, so I'm not sure how useful creating a lot of worker bees on a queue would be. Also, I haven't seen anything as reconfigurable as WebWork OOTB, but maybe I haven't looked hard enough. John _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ Webwork-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/webwork-user
