Hi,
Comments inline.
Thanks,
Raymond
----- Original Message -----
From: "Jean-Sebastien Delfino" <[EMAIL PROTECTED]>
To: <tuscany-dev@ws.apache.org>
Sent: Wednesday, September 05, 2007 1:31 PM
Subject: Re: Issue with dynamic creation of
NotificationReferenceBindingProvider
Raymond Feng wrote:
Comments inline.
Thanks,
Raymond
----- Original Message ----- From: "Jean-Sebastien Delfino"
<[EMAIL PROTECTED]>
To: <tuscany-dev@ws.apache.org>
Sent: Wednesday, September 05, 2007 9:03 AM
Subject: Re: Issue with dynamic creation of
NotificationReferenceBindingProvider
[snip]
Raymond Feng wrote:
At this moment, the code works as Ignacio described. We defer the
activation of a reference to the first time it's used for invocation.
If we decide that we need to agressively start the reference bindings,
we can add the part back to CompositeActivatorImpl.
Thanks,
Raymond
I think we need to activate references when the component that owns them
is activated, to keep the semantics of of start()/stop() clear, and
allow providers to perform any initialization they need on references
(which are not so different from services in many aspects).
There are some differences. A reference can be dynamically created and it
is possible that a reference binding won't be selected at all.
What do you mean by "a reference can be dynamically created"? can you
please describe the scenario you have in mind?
There are a few cases:
1) SCADomain.getService() will create self reference
2) ComponentContext.createSelfReference()
3) ComponentContext.getService() (if the business interface is not the same
as the reference)
4) Rebind a reference to a target
As a balance, can we do the following?
1) During the activation of a component, we add the reference binding
providers to the defined references. Then the binding provider will have
a chance to do some initialization (for example, handle subscription).
Do you mean in its constructor?
Yes.
2) When the reference is used for invocation, we start the binding
provider (further initilization can be performed at this time) and create
the wire/invocation chains.
Thanks,
Raymond
--
Jean-Sebastien
--
Jean-Sebastien
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