[cdi-dev] Lifecycle Callback Interceptor and @Target "METHOD"

Jozef Hartinger jharting at redhat.com
Wed Apr 24 11:11:35 EDT 2013

This was explicitly forbidden in CDI 1.0. If the spec allows it I doubt 
this was a deliberate change for CDI 1.1 but rather a leftover from the 
"method level bindings for lifecycle interceptors" proposal which ended 
up being reverted in the interceptors spec.

On 04/24/2013 03:57 PM, Pete Muir wrote:
> Right, I don't think there needs to be an error if an interceptor with a lifecycle callback defined on it is bound to a business method.
> On 24 Apr 2013, at 14:27, Jens Schumann <jens.schumann at openknowledge.de> wrote:
>> I need ElementType.METHOD since I want to use the same interceptor binding annotation for both business method and lifecycle callback interception. However I have a dedicated @AroundInvoke and @PostConstruct interceptor method. If I declare my annotation at method level I would expect that @AroundInvoke is applied only.
>> I just found the related sentence in the interceptor spec. "Method-level interceptors may not be associated with a lifecycle callback method of the target class." This statement seems to be OK but I believe this doesn't mean that my interceptor binding annotation may not specify ElementType.METHOD.
>> Jens
>> Von: Jozef Hartinger <jharting at redhat.com>
>> Datum: Mittwoch, 24. April 2013 14:56
>> An: Jens Schumann <jens.schumann at openknowledge.de>
>> Cc: CDI-Dev <cdi-dev at lists.jboss.org>
>> Betreff: Re: [cdi-dev] Lifecycle Callback Interceptor and @Target "METHOD"
>> Why do you need ElementType.METHOD? You cannot use method-level bindings for lifecycle callback interceptor methods. This has been reverted from the interceptors spec.
>> On 04/24/2013 02:17 PM, Jens Schumann wrote:
>>> Hi all!
>>> While testing Weld 2.0.0.CR4 I have been running into a DefinitionException because of an interceptor that contains one @AroundInvoke and one @PostConstruct method. Since I use this interceptor at class AND method level it declares @Target({ElementType.METHOD, ElementType.TYPE}). The error message seems to indicate that I can not have a lifecycle callback interceptor with @Target METHOD:
>>> "WELD-000619 An interceptor for lifecycle callbacks Interceptor XX declares and interceptor binding interface YYY with METHOD as its @Target."
>>> Is this true? I just checked the current CDI 1.1 and Interceptor 1.2 spec and could not find this kind of restriction.
>>> Jens
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