I'm taking this proposal off the table.
This would mean that async JAX-RS processing using EJBs will not have an
EJB-specific option that is parallel to the JAX-RS @Suspend(timeOut =
15, timeUnit = TimeUnit.SECONDS) option.
Best,
-marina
Marina Vatkina wrote:
> Experts,
>
> I had not received any feedback so far. If you think we should not add
> async timeout capabilities, please say so. Otherwise please provide
> your input.
>
> Thank you,
> -marina
>
> Marina Vatkina wrote:
>> Experts,
>>
>> This question was brought up some time ago, but got lost among other
>> discussions. (Sorry about that). Let's resolve it.
>>
>> Please vote on the choices in each group below or provide your own
>> solution proposal for further discussion.
>>
>> A. The definition:
>>
>> Async timeout will determine the time limit on:
>>
>> A1. Wait time before an async method begins execution;
>> A2. Limit on the execution time of an async method;
>> A3. A sum of A1 + A2;
>>
>> B. The timeout behavior:
>>
>> If the method execution did not complete (did not start in case of
>> A1) when the timeout expires, the method execution will not abruptly
>> stop, but:
>> B1. The transaction, if active, will be marked for rollback;
>> B2. SessionContext.wasCancelCalled(), when called within the context
>> of that asynchronous method, will return true;
>> B3. If the method returns a Future, the future will be marked as
>> done, and the exception TBD will be available from Future.get() as
>> the cause of java.util.concurrent.ExecutionException;
>> B4. All of the above for A2 or A3 or B3 only in case of A1.
>>
>>
>> C. Possible solutions:
>>
>> C1. Reuse AccessTimeout annotation. This doesn't seem a good match
>> either in the name (there is no *access* timeout) or matching the
>> current use cases with the new one.
>> C2. Create a new annotation, e.g. AsynchronousTimeout
>> C3. Add 2 new elements to the Asynchronous annotation value/unit (to
>> match those in the AccessTimeout) with the defaults providing
>> no-limit behavior (i.e. backward compatible with EJB 3.1).
>>
>> D. Exception name. (See item B3 on the exception handling part)
>>
>> D1. Add new AsynchronousTimeoutException
>> D2. Reuse XYZ exception (I can't think of any)
>> D3. Add new ABC exception
>> D4. No exception necessary.
>>
>> thanks,
>> -marina