[weld-dev] PostConstruct & PreDestroy in Java SE

[Mark Struberg]

And before there are any questions: it's not directly stated inside the CDI spec but in the TCK documentation:

http://docs.jboss.org/cdi/tck/reference/1.0.4.SP1/pdf/jsr299-tck-reference-guide.pdf

"JSR-330 - CDI builds on JSR-330, and as such JSR-299 implementations must additionally pass the JSR-330 TCK."

again: I agree with Martin that you should better not use it. But it should work nontheless.

LieGrue,
strub




----- Original Message -----
> From: Mark Struberg <struberg at yahoo.de>
> To: Martin Kouba <mkouba at redhat.com>; Kristoffer Sjögren <stoffe at gmail.com>
> Cc: "weld-dev at lists.jboss.org" <weld-dev at lists.jboss.org>
> Sent: Saturday, 7 September 2013, 19:22
> Subject: Re: [weld-dev] PostConstruct & PreDestroy in Java SE
> 
>T he wording is not correct.
> 
> Each JSR-299 Container must _fully_ implement the JSR-330 specification and pass 
> the JSR-330 TCK. Thus each CDI Container MUST support javax.inject.Singleton. 
> But it's actually not really defined in detail how this scope should behave. 
> And the atinject and EE specs also define that @PostConstruct and @PreDestroy 
> must work for @Singleton beans. So this is imo a bug. But otoh I personally 
> would suggest to not use javax.inject.Singleton because of the aforementioned 
> underspecified behaviout.
> 
> LieGrue,
> strub
> 
> 
> 
> 
> ----- Original Message -----
>>  From: Martin Kouba <mkouba at redhat.com>
>>  To: Kristoffer Sjögren <stoffe at gmail.com>
>>  Cc: weld-dev at lists.jboss.org
>>  Sent: Friday, 6 September 2013, 14:31
>>  Subject: Re: [weld-dev] PostConstruct & PreDestroy in Java SE
>> 
>>  Actually there's no singleton scope and corresponding built-in context
>>  defined in the CDI spec. Though Weld API contains
>>  org.jboss.weld.context.SingletonContext. Also the docs are outdated
>>  (chapter 5.4. The singleton pseudo-scope). I think relevant classes
>>  should be deprecated and the docs updated.
>> 
>>  With regard to lifecycle callbacks - Weld only invalidates application
>>  context during shutdown right now [1].
>> 
>>  Martin
>> 
>>  [1]
>> 
> https://github.com/weld/core/blob/master/impl/src/main/java/org/jboss/weld/bootstrap/WeldRuntime.java#L56
>> 
>>  Dne 6.9.2013 14:09, Kristoffer Sjögren napsal(a):
>>>   Hi
>>> 
>>>   We're running Weld 2.0.3.Final in a Java SE environment and have
>>>   encountered a precarious situation where it seems like Weld is not
>>>   consistent in handling the lifecycle of singleton beans.
>>> 
>>>   We have singleton beans with @PostConstruct and @PreDestroy methods.
>>>   During Weld.initialize() all @PostConstruct methods are called. But
>>>   during @PreDestroy methods are never called during Weld.shutdown().
>>>   @PreDestroy is only called on beans which are @ApplicationScoped.
>>> 
>>>   Is this according to specification or a bug?
>>> 
>>>   Cheers,
>>>   -Kristoffer
>>> 
>>> 
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>> 
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