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Posted to users@tapestry.apache.org by fmaylinch <fe...@gmail.com> on 2012/03/19 18:37:45 UTC
Service creation listener?
Hello,
We would like to add a service creation observer so this "master" service is
be notified every time a service is created. We would like to do it together
with an annotation (let's say @Metric) so every time a @Metric service is
created, the master service calls its methods from time to time to obtain
metrics (like number of users, consumed space, opened connections, etc.)
Is there any way to do it in Tapestry? How can we intercept service
instantiation?
Thank you very much,
Ferran
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Re: Service creation listener?
Posted by fmaylinch <fe...@gmail.com>.
Thank you Thiago.
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Re: Service creation listener?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
> On the other hand, I guess you can use Tapestry-IoC service advice to
> implement this.
I should have been more specific: you can add an advice to be applied for
all services. Your advice would need to advise all methods and check
whether it's the first time a method was invoked on it. You can also use
service decoration. In this case, the method that creates a decorator will
be invoked for every service instance created by Tapestry-IoC.
Regarding annotations, Tapestry-IoC 5.3.2, as far as I know, doesn't copy
annotations from service implementations classes nor methods to their
proxies (Tapestry-IoC creates proxies for all interface-defined services)
anymore. This would be another JIRA and it'll have my vote. :)
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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Re: Service creation listener?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Mon, 19 Mar 2012 14:37:45 -0300, fmaylinch <fe...@gmail.com>
wrote:
> Hello,
Hi!
> Is there any way to do it in Tapestry? How can we intercept service
> instantiation?
I don't think Tapestry-IoC does. Feel free to post a JIRA about this.
On the other hand, I guess you can use Tapestry-IoC service advice to
implement this.
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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