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Posted to users@tapestry.apache.org by Britske <gb...@gmail.com> on 2007/10/23 11:27:56 UTC
T5: how to let pojo (no component) have reference to PropertyAccess
I have a helperclass SelectModelRepository which centralizes logic concerning
selectmodels which different pages/ components can access. This class needs
a reference to PropertyAccess to do some of its work, which normally is
available as:
@Inject PropertyAccess _access.
However, this only works on components and not ordinary pojo's like the one
described above (i know... components are pojo's too ;-)
I tried passing the PropertyAccess-instance from a component to the
SelectModelRepository, but that didn't work because the
PropertyAccess-instance is only seen as a proxy since the JustInTimeCreator
proxies the class until it is needed. This all results in
NullPointer-exceptions when referencing the PropertyAccess-instance form the
SelectModelRepository.
Is there any way to get a valid reference to the PropertyAccess-instance
from my
SelectModelRepository-instance?
The SelectModelRepository-instance is a singleton, so of course it could be
injected through Tapestry-ioc, although i havn't tried tapestry-ioc yet at
all though. The trouble is that now it is configured as a Spring-IOC
instance with a whole chain of spring-ioc-references to build it. So
transferring it to Tapestry-ioc gets a bit messy i guess. If no other
solution exists, could you show a simple example of where (what file) and
how to configure the SelectModelRepository-instance as Tapestry-ioc service,
thanks,
Geert-Jan
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Re: T5: how to let pojo (no component) have reference to
PropertyAccess
Posted by Britske <gb...@gmail.com>.
Never mind.
I thought it would be difficult to define SelectModelRepository in
Tapestry-IOC given the existing spring-ioc chain it needs for construction.
I didn't realize injecting spring-instances in the build()-method of
Tapestry-IOC works just as good as normally in components.. and i love it
;-)
Britske wrote:
>
> I have a helperclass SelectModelRepository which centralizes logic
> concerning selectmodels which different pages/ components can access. This
> class needs a reference to PropertyAccess to do some of its work, which
> normally is available as:
>
> @Inject PropertyAccess _access.
>
> However, this only works on components and not ordinary pojo's like the
> one described above (i know... components are pojo's too ;-)
>
> I tried passing the PropertyAccess-instance from a component to the
> SelectModelRepository, but that didn't work because the
> PropertyAccess-instance is only seen as a proxy since the
> JustInTimeCreator proxies the class until it is needed. This all results
> in NullPointer-exceptions when referencing the PropertyAccess-instance
> form the SelectModelRepository.
>
> Is there any way to get a valid reference to the PropertyAccess-instance
> from my
> SelectModelRepository-instance?
>
> The SelectModelRepository-instance is a singleton, so of course it could
> be injected through Tapestry-ioc, although i havn't tried tapestry-ioc
> yet at all though. The trouble is that now it is configured as a
> Spring-IOC instance with a whole chain of spring-ioc-references to build
> it. So transferring it to Tapestry-ioc gets a bit messy i guess. If no
> other solution exists, could you show a simple example of where (what
> file) and how to configure the SelectModelRepository-instance as
> Tapestry-ioc service,
>
> thanks,
> Geert-Jan
>
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