Hi,
Please see my comments in line.
Thanks,
Raymond
----- Original Message -----
From: "Jeremy Boynes" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, January 26, 2007 11:29 AM
Subject: Model changes to support separate contributions
At the moment the Java configuration model contains references to
artifacts associated with Java definitions - for example,
JavaImplementation references the actual Class for the implementation.
This works fine when all runtimes have access to the applicable
contribution artifacts that provide these definitions but breaks down
when we start to distribute the assembly model over a heterogeneous
domain.
Agree.
To address this I am going to make changes to the model so that these
definition references can be represented as simple types - for example,
instead of using the actual Java Class, use its name and the id for the
contribution that provides its bytecode.
In most of the cases, we can represent the references as either a URI or a
qualified name as they are declared in the SCDL.
However, we still need information from these artifacts to determine
things like the component type, to introspect bindings and other
annotations, resolve autowires and verify composite structure. To support
this, I plan to add two new phases to the deployment process: resolve and
verify. The resolve phase will resolve these abstract definitions into
concrete model objects e.g. actually loading the component type for an
implementation. The verify phase will be responsible for verifying that
any model change is valid to make so we can catch errors like duplicate
component names.
I have been looking into the artifact addressing and resolving. I would like
to contribute to this area once you have the two new phases added.
--
Jeremy
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