Ustun Yildiz wrote: > Hi: It is very hard to catch workflow model errors other than type > mismatches. I am not sure Kepler has a support for this. Ustun.
Actually, it's not so hard. The TestExceptionHandler actor is an example of an actor that handles exceptions. Any actor that implements the ExceptionHandler mechanism will be given a chance to handle exceptions. We use this extensively in regression tests to ensure that exceptions are thrown when it is correct to do so. Exceptions are passed up the Java call hierarchy. Model errors are a complementary mechanism where the error is passed up the model hierarchy. A model error handler overrides the handleModelError() method. The ThrowModelError actor throws a model error. We have talked about providing an "error handler transition" in ModalModels, but I don't think think this has been implemented. Shanna (cc'd here) was looking into it... Edward -------------- next part -------------- A non-text attachment was scrubbed... Name: eal.vcf Type: text/x-vcard Size: 351 bytes Desc: not available URL: <http://mercury.nceas.ucsb.edu/kepler/pipermail/kepler-users/attachments/20091209/083537ce/attachment.vcf>
