| Re: [higgins-dev] [IdAS] new methods doc |
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I believe we added isCreatable (I called it canCreate) so that one can determine (given a ContextRef) which factories are capable of producing a Context for it (allows one to discover and choose from the capable factories). The overhead of actually creating the context may warrant the canCreate() method.
Jim >>> Greg Byrd <gbyrd@xxxxxxxx> 7/27/06 5:51 PM >>> Yes, I should have put isOpenable on the Context, not the ContextFactory. So, isCreatable(ContextRef) would be TRUE if the ContextFactory knows how to resolve the URI to a data source, and if it can determine that the underlying datatype is one that it can interpret. Does that seem correct? Actually, wouldn't it be just as simple to just throw an exception on createContext(ContextRef) if it can't resolve or support the data format? I don't know why someone would call isCreatable unless they were planning to create, and checking first would cause the factory to do the resolution and format checking twice (once for the test, once for the creation). ...Greg Jim Sermersheim wrote: > Question on IContextFactory.isOpenable(contextRef, identity) > > I remember having the discussion where we thought it would be good to > allow the identity to be passed to a function which tests whether a > context is currently open with a specified identity. I don't remember > us talking about passing the identity to isOpenable here though. > > Actually, with the changes, I expected this method to be called > isCreatable(contextRef). Since the role of opening is on IContext now, > the factory can't know whether it's openable given a specified identity. > > Jim > > >>> Greg Byrd <gbyrd@xxxxxxxx> 7/27/06 3:33 PM >>> > > I modified the list of IdAS methods (Working Draft 0.4) and uploaded it > to the IdAS wiki page. I will continue to make edits to the page over > the next few days. I believe this incorporates today's discussion, as > well as other smaller changes to the API from the last few weeks. As > always, feel free to question and critique. > > http://spwiki.editme.com/IdentityAttributeService > > ...Greg > > _______________________________________________ > higgins-dev mailing list > higgins-dev@xxxxxxxxxxx > https://dev.eclipse.org/mailman/listinfo/higgins-dev > ------------------------------------------------------------------------ > > _______________________________________________ > higgins-dev mailing list > higgins-dev@xxxxxxxxxxx > https://dev.eclipse.org/mailman/listinfo/higgins-dev > _______________________________________________ higgins-dev mailing list higgins-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/higgins-dev |