How does the RTC repository handle dynamic attributes?
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I have an EMF model that I need to persist to a database. I'd like the
model to be able to reference RTC users, workitems, and team areas, so persisting the model in the RTC repository seems ideal. Our application needs to use dynamic EMF to extend one or more of the modeled classes to add user specified attributes. Conceptually, it seems identical to how a user can customize a workitem. In fact, I would like to allow users the ability to specify the additional attributes as part of the process configuration data. Can this type of model be persisted in the RTC repository? Do the dynamically added attributes get mapped to columns in the table with the base attributes so that they can be queried efficiently? Do I have to write code to add the columns? Another concern I have is performance. We will be inserting somewhere in the range of 20 to 200 instances of the model per second. Does anyone have a "gut feel" if RTC can handle that insert rate along with updates, queries, etc? If the answer is "we can't handle that", how much effort would it be to store a model (using something like Teneo) that somehow ties back into RTC so that my UI can have links to RTC users, workitems, etc? Right now, I'm trying to evaluate Teneo, RTC, and developing a custom solution. Any words of wisdom will be appreciated. Bryan |
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In Jazz/RTC a modeled Item can have the dynamic attributes you describe
through 'state extensions'. To allow an Item to have 'state extensions', you can annotate your new EClass with a 'teamClass' annotation, and add a detail allowsStateExtensions=true. When the model code generation tool sees that annotation, it will add the ability to store extra attributes on the Item and they will be persisted automatically. Whether RTC can handle the speed at which you want to insert items, I would assume that it can. I'm not familiar with Teneo, so I don't quite understand how your Ecore model would be related to Teneo. - Matt Lavin Jazz Server Team On Wed, 2008-11-05 at 22:53 -0600, Bryan Hunt wrote: I have an EMF model that I need to persist to a database. I'd like the |
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