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From Christian Essl <christiane...@yahoo.de>
Subject Re: [HiveMind] extending BuilderFactory
Date Thu, 09 Oct 2003 14:56:29 GMT
Have you tried to use <create-instance> or defining your own 
ServiceImplementationFactory which creates the Interceptor? I think this 
way you don't need the BuilderFactory to create the 
ServiceInterceptorFactory service.

On Thu, 09 Oct 2003 20:52:39 +0800, Eric Yung <eric.yung@jspectrum.com> 
wrote:

> Since I would like to record the ids of the services created by the 
> BuilderFactory, I want to use an interceptor to do the job. Before I 
> implements that solution, I take the logging interceptor as a test to 
> check if HiveMind allows such setup.
>
> And the result is that I cannot take this approach - HiveMind does NOT 
> allow such setup. Add an interceptor to an BuilderFactory since the 
> interceptor uses the BuilderFactory service.
>
>
> Regards,
> Eric
>
>
> Howard M. Lewis Ship wrote:
>> Did you add a logging interceptor to BuilderFactory?
>>
>> --
>> Howard M. Lewis Ship
>> Creator, Tapestry: Java Web Components
>> http://jakarta.apache.org/tapestry
>> http://jakarta.apache.org/commons/sandbox/hivemind/
>> http://javatapestry.blogspot.com
>>
>>
>>> -----Original Message-----
>>> From: news [mailto:news@sea.gmane.org] On Behalf Of Eric Yung
>>> Sent: Thursday, October 09, 2003 5:44 AM
>>> To: commons-dev@jakarta.apache.org
>>> Subject: Re: [HiveMind] extending BuilderFactory
>>>
>>>
>>> Hi,
>>>
>>> After the testing I have built the newest version from the CVS. When I 
>>> re-run the test today, it shows the following error.
>>>
>>>
>>> [junit] Unable to construct service js.util.testA: Unable to construct 
>>> service hivemind.BuilderFactory: Unable to construct service 
>>> hivemind.LoggingInterceptor: A recursive call to construct service 
>>> hivemind.BuilderFactory has occured.  This indicates a cycle between 
>>> one or more services or configurations.
>>>
>>>
>>> And that's OK since the code can detect the cyclic dependency of the 
>>> services.
>>>
>>>
>>> BTW, I have changed my code to extend the BuilderFactory and create 
>>> another service point by copying the default BuilderFactory definition.
>>>
>>>
>>> Regards,
>>> Eric
>>>
>>>
>>> Howard M. Lewis Ship wrote:
>>>
>>>>> But I notes from the debug log that the system creates multiple
>>>>> instances of the BuilderFactory & the interceptor - one for each

>>>>> <invoke-factory> config in the xml file. If I replace my
>>>
>>> interceptor
>>>
>>>>> with the "hivemind.LoggingInterceptor", the behavior is the same.
>>>>>
>>>>> I would like to know if this is the system behavior if I add a
>>>>> interceptor in the service "hivemind.BuilderFactory" since the 
>>>>> instantiation of interceptor requests the "hivemind.BuilderFactory" 
>>>>> service.
>>>>>
>>>>
>>>>
>>>> hivemind.BuilderFactory is a singleton; it is created
>>>
>>> exactly once.
>>>
>>>> I'd like to see the debug output you mention; there must be
>>>
>>> misleading
>>>
>>>> output (perhaps due to the recent refactoring).
>>>>
>>>> --
>>>> Howard M. Lewis Ship
>>>> Creator, Tapestry: Java Web Components 
>>>> http://jakarta.apache.org/tapestry
>>>> http://jakarta.apache.org/commons/sandbox/hivemind/
>>>> http://javatapestry.blogspot.com
>>>
>>>
>>>
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>>>
>
>
>
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-- 
--
Christian Essl http://jucas.sourceforge.net

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