Raymond Feng wrote:
Hi,
The OASIS version of the SCA spec has the same constraint. There is a
good article that discusses the differences between coarse-grained and
fine-grained services:
http://www.ibm.com/developerworks/webservices/library/ws-soa-granularity/
BTW, I'm not sure if OSGi services are initially designed to be
coarse-grained and loosely-coupled until the recent introduction of OSGi
remote services :-).
OSGi is Java-centric whereas SCA is language neutral. Disallowing
method overloading makes it easier to create interfaces that interoperate
with other languages.
Simon
Thanks,,
Raymond
/________________________________________________________________
Raymond Feng
[email protected] <mailto:[email protected]>
/Apache Tuscany PMC member and committer: tuscany.apache.org
Co-author of Tuscany SCA In Action book: www.tuscanyinaction.com
Personal Web Site: www.enjoyjava.com
/
________________________________________________________________/
On Sep 14, 2010, at 12:24 AM, Millies, Sebastian wrote:
thanks for the quote.
Do you think this decision by OSOA well-motivated? After all, e. g.
OSGi does not
make this restriction, and OSGi services are also coarse grained and
loosely coupled.
-- Sebastian
*From:* Raymond Feng [mailto:[email protected]]
*Sent:* Tuesday, September 14, 2010 12:27 AM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: Overloaded methods in Remotable interfaces
See the following quote from the OSOA SCA assembly spec:
702 The style of remotable interfaces is typically */coarse
grained /*and intended for */loosely coupled/*
703 interactions. Remotable service Interfaces MUST NOT make use
of */method or operation/*
704 */overloading/*.
Thanks,
Raymond
________________________________________________________________
Raymond Feng
[email protected] <mailto:[email protected]>
/Apache Tuscany PMC member and committer: tuscany.apache.org
<http://tuscany.apache.org>
Co-author of Tuscany SCA In Action book: www.tuscanyinaction.com
<http://www.tuscanyinaction.com>
Personal Web Site: www.enjoyjava.com <http://www.enjoyjava.com>/
________________________________________________________________
On Sep 13, 2010, at 2:46 PM, Millies, Sebastian wrote:
why does Tuscany 1.6 forbid overloaded methods in Remotable interfaces
and throws a
org.apache.tuscany.sca.interfacedef.OverloadedOperationException?
Is that covered by the specs? As far as I can see, none of the specs
on the page
http://www.osoa.org/display/Main/Service+Component+Architecture+Specifications
suggests this behaviour, and I find it surprising, in particular in
view of
the fact that the interface compatibility rules take method signatures
into
account.
-- Sebastian
