Re: [equinox-dev] Eclipse ViewPart and OSGI Declarative Servicesproblem

[Martin Lippert <lippert@xxxxxxx>]

Hi!

> Another dependency-injection approach is Spring.  Martin Libbert provided a way to bridge extension points w/ spring beans.  See his blog at:
> * http://martinlippert.blogspot.com/2008/05/dependency-injection-for-extensions.html

The bridge that I built some time ago is now located at:

http://github.com/martinlippert/spring-extension-factory

Cheers,
-Martin



> -----Original Message-----
> From: equinox-dev-bounces@xxxxxxxxxxx [mailto:equinox-dev-bounces@xxxxxxxxxxx] On Behalf Of Neil Bartlett
> Sent: Tuesday, November 02, 2010 7:11 AM
> To: Equinox development mailing list
> Subject: Re: [equinox-dev] Eclipse ViewPart and OSGI Declarative Servicesproblem
>
> Hi Richard,
>
> This is a rather challenging area, because the lifecycles of services
> and extensions are completely unrelated. As you've noticed, creating a
> component with DS does not mean it will be used by the extension
> registry. Indeed it cannot be, because the extension registry is more
> like a factory where new instances are created each time they are
> needed.
>
> I created a small framework to help with this kind of thing:
> http://github.com/njbartlett/extensions2services. Please be sure to
> read the manual (in PDF), because it helps to describe the background
> of the problem, even if you decide not to adopt my solution.
>
> Other possible solutions, which all use or include a
> dependency-injection approach, are as follows:
>
> 1) Eclipse Riena -- however Riena does a lot of other stuff that I
> don't really understand
> 2) Peaberry is based on Guice
> 3) Eclipse 4.0 ("e4") uses dependency injection everywhere, but this
> is not much use to you if you are using 3.x.
>
> Regards,
> Neil
>
>
> On Mon, Nov 1, 2010 at 9:17 PM, Richard Catlin
> <richard.m.catlin@xxxxxxxxx>  wrote:
> > I have a ViewPart which depends on an OSGI Declarative Service.
> >
> > I have it configured properly so that the service is injected into the
> > ViewPart via a bind method.  I can debug and see that this is working.
> >
> > The problem I am having is that a new instance of the ViewPart is being
> > instantiated for viewing and that the instance that was injected is not
> > being used.
> >
> > Any help is appreciated.
> >
> > Thanks.
> > Richard Catlin
> >
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