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Subject: Re: [sca-j] Should introduction of @Local annotation (JAVA-3) affect theSemantics of an Unannotated Implementation
- From: Mike Edwards <mike_edwards@uk.ibm.com>
- To: "OASIS Java" <sca-j@lists.oasis-open.org>
- Date: Wed, 27 Aug 2008 10:42:07 +0100
Folks,
An @Local annotation would certainly
affect the semantics of an unannotated implementation.
An interface so marked would clearly
indicate something relating to an SCA reference.
Yours, Mike.
Strategist - Emerging Technologies, SCA & SDO.
Co Chair OASIS SCA Assembly TC.
IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great Britain.
Phone & FAX: +44-1962-818014 Mobile: +44-7802-467431
Email: mike_edwards@uk.ibm.com
From:
| C Vamsi <vamsic007@in.ibm.com>
|
To:
| Simon Nash/UK/IBM@IBMGB
|
Cc:
| sca-j@lists.oasis-open.org
|
Date:
| 27/08/2008 09:09
|
Subject:
| [sca-j] Should introduction of @Local
annotation (JAVA-3) affect the Semantics of an Unannotated Implementation |
Simon,
Should the introduction of @Local annotation affect the "Semantics
of an
Unannotated Implementation" (section 8 in sca-javaci-draft-20070926.doc)
where we are currently using only interfaces marked with @Remotable in
computing the references/properties of an implementation?
++Vamsi
Simon Nash
<NASH@uk.ibm.com>
To
27/08/2008 12:57
sca-j@lists.oasis-open.org
cc
Subject
Re: [sca-j]
Introspecting services
offered
by a Java implementation
class without
@Service
Raymond,
Minor nit: the @OneWay annotation applies to a method, not to an
interface. Your example should be updated to show this.
In your example, these services are local. Issue JAVA-3 has proposed
a new
annotation @Local that could be used on Interface1and Interface2 to allow
them to be recognized by the introspection algorithm.
I believe this discussion can be handled under JAVA-3 and there is no need
to create a new issue.
Simon
Simon C. Nash, IBM Distinguished Engineer
Member of the IBM Academy of Technology
Tel. +44-1962-815156 Fax +44-1962-818999
Raymond Feng
<rfeng@us.ibm.com>
To
25/08/2008 17:25
sca-j@lists.oasis-open.org
cc
Subject
[sca-j] Introspecting
services offered by a Java
implementation class without
@Service
Hi,
In Java Component Implementation Specification 1.00, we have the following
statements:
143 1.2.1.3. Introspecting services offered by a Java implementation
144 In the cases described below, the services offered by a Java
implementation class may be determined
145 through introspection, eliding the need to specify them using @Service.
The following algorithm is used to
146 determine how services are introspected from an implementation class:
147 If the interfaces of the SCA services are not specified with the
@Service annotation on the implementation
148 class, it is assumed that all implemented interfaces that have been
annotated as @Remotable are the
149 service interfaces provided by the component. If none of the
implemented interfaces is remotable, then by
150 default the implementation offers a single service whose type is the
implementation class.
What if an interface is annotated with SCA annotations such as @OneWay
or
@Callback?
For example:
public class MyServiceImpl implements Interface1, Interface2 {
}
@Callback(CallbackInterface.class)
public interface Interface1 {
}
@OneWay
public interface Interface2 {
}
By the spec, there is only one service named MyServiceImpl. But isn't it
more natural that we should find two SCA services: Interface1 and
Interface2? Please clarify.
Thanks,
Raymond
Raymond Feng
Senior Software Engineer, Open Source SCA Development, Apache Tuscany
Project
IBM Bay Area Lab, 1001 E Hillsdale Blvd, Suite 400, Foster City, CA 94404,
USA
E-mail: rfeng@us.ibm.com, Notes: Raymond Feng/Burlingame/IBM, Tel:
650-645-8117, T/L: 367-8117
Web & Blog: www.enjoyjava.com
- The Cyber Cafeteria to Enjoy Java
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