| Re: Re[2]: [higgins-dev] IdAS update proposals |
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>>> Valery Kokhan vkokhan@xxxxxxxxxxxxxx> 4/16/07 3:14 PM >>
<snip> >>>My second point of confusion with option 3a is proposed >>>TransactionSemantics parameter. My question is what will happens when >>>first we call few methods with the semantic parameter set to >>>"OnCommit" and then we call another method with the semantic parameter >>>set to "Immediate"? >> >> All updates which set it to "OnCommit" are held by the CP until >> IContext.commit is called. All updates which set it to "Immediate" >> are committed immediately. So, yes, you could mix these calls if you wanted. >> >I'd prefer not to mix them because it may leads to a hardly resolvable >situations when my waiting updates become invalid after a single call >to "immediate" method. The same problem exists when another entity concurrently makes changes to the backing data store. We haven't said that a Context (or its backing data) is locked and only updatable by a single entity at a single time. When something like this happens, the call to commit will have to fail. As a user, I would avoid mixing these when the updates affect the same subject.
Jim |