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Posted to users@tapestry.apache.org by Thim Anneessens <th...@gmail.com> on 2012/05/25 12:18:32 UTC
How to get a service whithout using @Inject
Hello,
I need to use a Tapestry service outside of the Tapestry scope (in
another servlet of the same web app) and would like to know what is the
cleanest way to achieve this.
Thanks,
Thim.
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Re: How to get a service whithout using @Inject
Posted by Lance Java <la...@googlemail.com>.
Whilst tapestry will happily work side-by-side with other servlets, you can
get tapestry to instantiate a servlet and delegate to it. Here is my recent
attempt at integrating DWR with tapestry before I abandoned the idea.
https://github.com/uklance/tapestry-push/blob/master/src/main/java/com/lazan/push/dwr/DwrHttpServletRequestFilter.java
https://github.com/uklance/tapestry-push/blob/master/src/main/java/com/lazan/services/AppModule.java
One of the benefits of this approach is that you can provide the
functionality in a separate jar without needing to add to web.xml and you
can configure the servlet init-params as tapestry symbols.
--
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Re: How to get a service whithout using @Inject
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Fri, 25 May 2012 07:18:32 -0300, Thim Anneessens <th...@gmail.com>
wrote:
> Hello,
Hi!
> I need to use a Tapestry service outside of the Tapestry scope (in
> another servlet of the same web app) and would like to know what is the
> cleanest way to achieve this.
The Tapestry-created Registry instance is stored in the
TapestryFilter.REGISTRY_CONTEXT_NAME
(org.apache.tapestry5.application-registry) attribute of the
ServletContext. From the Registry instance you can use its getService()
methods (which are inherited from ObjectLocator) to get configured
services. That's exactly the methods used by the code that handles
@Inject. Registry has also the autobuild() method to create an instance of
any class with dependencies injected.
--
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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