Hi Henrique, Thanks for your input. Just out of curiosity, can I ask you to expand on a few points? (My original problem is solved—I'll just have to do the report creation in a less general way. But I think it's interesting to get to the bottom of the received wisdom on this issue.)
On 27/09/2013, at 1:55 AM, Henrique Prange <hpra...@gmail.com> wrote: > I've refactored the report generation in one of applications lately to use a > background task. A few lessons that I learned: > > 1) Do not create the editing context you're going to use in the background > task during the request-response cycle. So this would presumably include creating it in the constructor of the Callable class. What are the risks here? > 3) Do not reference the WOSession, WORequest, WOContext from the background > task. What are the risks here? > 5) You can pass a Map as parameter when generating Jasper reports. I don't > how this could relate to your need to perform a dictionary preparation. The preparation step is not an issue—I'll just move that into the background as well. (Obviously one could make a pretty good case that that's where it should be done anyway.) > I also had trouble locking the editing context in the background task, but I > have no recommendation on this subject. You must check how your application > behaves. Interesting. What did you find? > In the end, we have created a project (that is probably going to became open > source) to handle the report generation. You can take a look here [1] for > some inspiration related to Jasper data sources. Please, be gentle. The code > is available but it's not completely polished. :) > > [1]https://github.com/hprange/woreports/tree/master/src/main/java/com/woreports/jasper Thanks a lot. I'll take a look. -- Paul Hoadley http://logicsquad.net/
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