Message:

   The following issue has been closed.

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View the issue:
  http://issues.apache.org/jira/browse/RUNTIME-8

Here is an overview of the issue:
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        Key: RUNTIME-8
    Summary: Model Driven Runtime
       Type: Improvement

     Status: Closed
   Priority: Major
 Resolution: FIXED

    Project: Merlin Runtime Platform
 Components: 
             Composition
   Fix Fors:
             3.3
   Versions:
             3.2

   Assignee: Stephen McConnell
   Reporter: Stephen McConnell

    Created: Fri, 6 Feb 2004 3:54 PM
    Updated: Thu, 6 May 2004 7:13 PM

Description:
The current implementation (3.3 HEAD) of the composition framework relies on a runtime 
that is established independently of the composition model.  If is preferable that we 
move control over runtime commissioning and decommissioning to the model, which in 
turn enables model-driven redeployment and alternative runtime implementations.

Outstanding issues in archiving this objective relate to the establishment by the 
model of a default runtime.  This requires some sort of a runtime factory declared at 
a system level (e.g. via SystemContext), and the possibility to override a factory at 
a container or component model level (i.e. under ContainmentContext or 
ComponentContext).

A second aspect is the relationship between the model and the runtime - in particular, 
an model-driven event pattern is required in which the runtime responds to model based 
deployment status - enabling the triggering of event driven redeployment of runtime 
artifacts.


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