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Re: Override an IoC service
by P.Stavrinides
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Hi nillehammer,
> Isn't this a question of disambiguation of Services either with ids or with the @Local annotation as described here: http://tapestry.apache.org/tapestry5.1/tapestry-
> ioc/service.html ? Or did I get lost somewhere?
I am not sure to be perfectly honest, looking through that link I guess there may have been a case... in my situation Thiagos solution is perfect because I use a generic error handling service that is configured in the shared core module and is reused without change by many applications, but in one particular application I have to extend this service to override some of the handling... so far as I know I could do this either by:
- decorating the service
- not bind it in the shared core module, and then binding it each applications AppModule (my solution before)
- Or implement the override (Thiagos suggestion), which I have now done
But perhaps I could have done it that way as well?
regards,
Peter
----- Original Message -----
From: "nille hammer" <tapestry.nillehammer@...>
To: "Tapestry users" <users@...>
Sent: Monday, 29 June, 2009 15:31:04 GMT +02:00 Athens, Beirut, Bucharest, Istanbul
Subject: Re: Override an IoC service
Hi Peter,
Isn't this a question of disambiguation of Services either with ids or with the@Local annotation as described here: http://tapestry.apache.org/tapestry5.1/tapestry-ioc/service.html ? Or did I get lost somewhere?
Regards, nillehammer
==
http://www.winfonet.eu
----- original Nachricht --------
Betreff: Override an IoC service
Gesendet: Mo, 29. Jun 2009
Von: Peter Stavrinides<P.Stavrinides@...>
> Hi,
>
> I have recently introduced a multiple IoC module structure into my web
> applications, so I have a core web module and then application specific
> modules separately, and now I am getting the following error:
> ERROR - Service interface com.albourne.web.interfaces.ISiteError is matched
> by 2 services: CoreError, SiteError.
>
> I have introduced these changes mostly for testing purposes... its not a big
> problem as I can simply remove the offending service from the shared core
> and provide an implementation of it in each application specific module, but
> it got me wandering about this issue on a larger scale, is it possible to
> override a service? if not would such a feature be useful? How do others
> deal with this, using service decoration potentially?
>
> Kind regards,
> Peter
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@...
> For additional commands, e-mail: users-help@...
>
>
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> Isn't this a question of disambiguation of Services either with ids or with the @Local annotation as described here: http://tapestry.apache.org/tapestry5.1/tapestry-
> ioc/service.html ? Or did I get lost somewhere?
I am not sure to be perfectly honest, looking through that link I guess there may have been a case... in my situation Thiagos solution is perfect because I use a generic error handling service that is configured in the shared core module and is reused without change by many applications, but in one particular application I have to extend this service to override some of the handling... so far as I know I could do this either by:
- decorating the service
- not bind it in the shared core module, and then binding it each applications AppModule (my solution before)
- Or implement the override (Thiagos suggestion), which I have now done
But perhaps I could have done it that way as well?
regards,
Peter
----- Original Message -----
From: "nille hammer" <tapestry.nillehammer@...>
To: "Tapestry users" <users@...>
Sent: Monday, 29 June, 2009 15:31:04 GMT +02:00 Athens, Beirut, Bucharest, Istanbul
Subject: Re: Override an IoC service
Hi Peter,
Isn't this a question of disambiguation of Services either with ids or with the@Local annotation as described here: http://tapestry.apache.org/tapestry5.1/tapestry-ioc/service.html ? Or did I get lost somewhere?
Regards, nillehammer
==
http://www.winfonet.eu
----- original Nachricht --------
Betreff: Override an IoC service
Gesendet: Mo, 29. Jun 2009
Von: Peter Stavrinides<P.Stavrinides@...>
> Hi,
>
> I have recently introduced a multiple IoC module structure into my web
> applications, so I have a core web module and then application specific
> modules separately, and now I am getting the following error:
> ERROR - Service interface com.albourne.web.interfaces.ISiteError is matched
> by 2 services: CoreError, SiteError.
>
> I have introduced these changes mostly for testing purposes... its not a big
> problem as I can simply remove the offending service from the shared core
> and provide an implementation of it in each application specific module, but
> it got me wandering about this issue on a larger scale, is it possible to
> override a service? if not would such a feature be useful? How do others
> deal with this, using service decoration potentially?
>
> Kind regards,
> Peter
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@...
> For additional commands, e-mail: users-help@...
>
>
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