Experts,
GlassFish (RI) throws an exception if Timer any method is executed by a
non-EJB. The statement that might cause RI behavior is in the section
13.2.6: "timers are local objects"..
Do you think the RI is too restrictive or the spec wording should be
relaxed?
My vote is yes, because otherwise, instead of just calling
Timer.isPersistent() or Timer.getInfo() the caller needs to ask an EJB
(the Bean Provider) to do so.
thanks,
-marina
Linda DeMichiel wrote:
>
>
> On 12/4/2012 9:40 AM, Marina Vatkina wrote:
>>
>>
>> Linda DeMichiel wrote:
>>>
>>>
>>> On 12/3/2012 11:03 PM, Marina Vatkina wrote:
>>>> Experts,
>>>>
>>>> Please look at http://java.net/jira/browse/EJB_SPEC-71 - which is a
>>>> separate issue on Timer.cancel mismatch in the spec.
>>>>
>>>> Please let me know, if you think that:
>>>>
>>>> a) A timer can be cancelled only by the bean that owns it (as in
>>>> getAllTimers() rule)
>>>>
>>>
>>> no
>>>
>>>> Or
>>>>
>>>> b1) A timer can be cancelled by calling Timer.cancel() (i.e. the
>>>> rule in getAllTimers() should be removed)
>>>>
>>>
>>> yes
>>>
>>>> b2) Timer can be cancelled by a non-EJB caller (i.e. the spec
>>>> should remove references to a bean or a Bean Provider when
>>>> describing the timer cancellation).
>>>>
>>>
>>> yes
>>>
>>>> Depending on the outcome of your vote, I'll update the spec one way
>>>> or the other.
>>>>
>>>
>>> The spec should not prohibit this, as that would be a
>>> backward-incompatible change.
>>>
>>> I don't see any reason for encouraging it either, i.e., the language
>>> of EJB 3.1 is sufficient.
>>
>> The spec says "Timer object [...] allows the bean to cancel the
>> timer" or "the Bean Provider to cancel a timer". So the
>> spec needs to change to allow b2.
>>
>
> I don't think the spec needs to change anything. What is stated is
> the obvious intended scenario. However the
> bean provider can arrange for the timer to be canceled or managed by
> another object by passing it around.
>
>
>> thanks,
>> -marina
>>>
>>> -Linda
>>>
>>>> As a note: GlassFish (RI) allows a non-owning bean (I didn't check
>>>> a servlet) to cancel a timer by calling its cancel()
>>>> method.
>>>>
>>>>
>>>> thanks,
>>>> -marina