I wouldn't worry too much about xmlrpc..  I don't really know of anyone
using it, and it is kinda ugly..  I would love an XMLRPC that worked well,
but the rest of Fulcrum is more important.  Of course, I guess that is more
on my plate then yours!

Did you get a chance to review configuration?

Eric

> -----Original Message-----
> From: Stephen McConnell [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, November 12, 2003 6:23 PM
> To: Avalon Developers List
> Subject: Re: Merlin runtime plugins
>
>
>
>
> Eric Pugh wrote:
>
> >Can you elaborate on what components in Fulcrum need this?
> Just as I am
> >going to probably stub my toe over this soon..  Is this
> where something like
> >Pool want's to load up a Factory component?
> >
>
> xmlrpc
>
> Its basically acting as a container - receives requests for the
> deployment of a compoennt based on its configuration and
> registeres the
> component with the XmlRPM implementation.
>
> Steve.
>
> >
> >ERic
> >
> >
> >
> >>-----Original Message-----
> >>From: Stephen McConnell [mailto:[EMAIL PROTECTED]
> >>Sent: Wednesday, November 12, 2003 6:01 PM
> >>To: Avalon Developers List
> >>Subject: Re: Merlin runtime plugins
> >>
> >>
> >>
> >>Hi Yannick:
> >>
> >>I have you message on the uyser list flagged for followup.
> >>
> >>See notes in-line.
> >>
> >>
> >>Yannick Menager wrote:
> >>
> >>
> >>
> >>>I've been looking everywhere, and I'm confused how I can implements
> >>>plugin components in merlin.
> >>>
> >>>
> >>Can you explain in more detail what you mean by a plugin.  There are
> >>several access points in Merlin already and more comming - but an
> >>outline of what you want to do will help.
> >>
> >>
> >>
> >>>If I understand correctly:
> >>>
> >>>- ServiceSelector is not supported by Merlin
> >>>
> >>>
> >>Correct - the framework spec on this subject is not sufficient.
> >>
> >>
> >>
> >>>- Dependencies are hardcoded using the @avalon.dependency tag
> >>>
> >>>So how can I implement runtime plugin functionality in my app ?
> >>>
> >>>
> >>If you want to select something then presumably you have some
> >>selection
> >>criteria in mind. A generic container such as Merlin does not
> >>know what
> >>you intentions are nor anything about a selection criteria or
> >>candidate
> >>ranking strategy.  What this means is that you need to supply
> >>this logic
> >>though a service defintion and an implementation.
> >>
> >>I.e. define your seelction service:
> >>
> >>   public interface MySelectionService
> >>   {
> >>          Thing selectSomething( MyCriteria criteria );
> >>   }
> >>
> >>The define you component that implements MySelectionService
> >>and includes
> >>all of the selection semantics that are specific to the
> >>domain you are
> >>concerned with.
> >>
> >>Limitation: as you mentioned Merlin requires that you declare
> >>dependencies for a component at the level of a type (i.e.
> >>dependencies
> >>are static).  This means that if you want to slect against a merlin
> >>establish service, then you need to declare dependencies on
> >>all of the
> >>different potential types that you are going to select
> >>against.  This is
> >>ok in scenarios such a keystor and you selecting between a personal
> >>keystore for signing as opposed to a keystore for trusted
> >>keys (i.e. the
> >>selection set is static).  If the selection set is dynamic
> >>then you need
> >>to roll-your-own solution ... at least for the moment.  A similar
> >>requirement exists in the Turbine Fulcrum project and its a
> >>subject I've
> >>been working on - i.e. if you not in a desperate hurry then
> >>you get this
> >>for free sometime soon.
> >>
> >>Cheers, Steve.
> >>
> >>--
> >>
> >>Stephen J. McConnell
> >>mailto:[EMAIL PROTECTED]
> >>
> >>
> >>
> >>
> >>------------------------------------------------------------
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> >>
> >>
> >
> >
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> >
> >
> >
>
> --
>
> Stephen J. McConnell
> mailto:[EMAIL PROTECTED]
>
>
>
>
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