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Posted to dev@tuscany.apache.org by "Vamsavardhana Reddy (JIRA)" <tu...@ws.apache.org> on 2008/03/25 10:33:24 UTC
[jira] Commented: (TUSCANY-2112) Add conversational intents as
described in the assembly spec
[ https://issues.apache.org/jira/browse/TUSCANY-2112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581848#action_12581848 ]
Vamsavardhana Reddy commented on TUSCANY-2112:
----------------------------------------------
I have been doing some digging into the conversational semantics. One of the things I have noticed is that when the service is marked with conversational intent, the reference created for the callback does not inherit that intent. Should it be that the callback is marked conversational separate from the service? Also, is it up to the service to mark operations on the callback with an EndsConveration intent?
> Add conversational intents as described in the assembly spec
> ------------------------------------------------------------
>
> Key: TUSCANY-2112
> URL: https://issues.apache.org/jira/browse/TUSCANY-2112
> Project: Tuscany
> Issue Type: Improvement
> Components: Java SCA Core Runtime
> Affects Versions: Java-SCA-1.1
> Environment: All
> Reporter: Simon Laws
> Assignee: Vamsavardhana Reddy
> Priority: Minor
> Fix For: Java-SCA-Next
>
>
> I've been looking at the parts for the assembly spec that deal with conversational semantics and there are a couple of gaps when
> compared with the current TUscany implementation. In particular Tuscany only supports annotations in Java interfaces when declaring
> conversational behaviour.
> Section 1.5.3 describes the use of policy intents for specifying conversational behaviour
> 819 interface type. Note that it is also possible for a service or a reference to set the conversational
> 820 intent when using an interface which is not marked with the conversational intent. This can be
> 821 useful when reusing an existing interface definition that does not contain SCA information.
> I assume this meansa service could have a "conversational" intent
> <component name="ConversationalServiceStateless">
> <implementation.java class="org.apache.tuscany.sca.itest.conversational.impl.ConversationalServiceStatelessImpl"/>
> <service name="ConversationalService" requires="Conversational">
> <interface.java interface="org.apache.tuscany.sca.itest.conversational.ConversationalService"
> callbackInterface="org.apache.tuscany.sca.itest.conversational.ConversationalCallback" />
> <binding.ws/>
> <callback>
> <binding.ws/>
> </callback>
> </service>
> </component>
> as could a reference
> <component name="ConversationalStatelessClientStatefulService">
> <implementation.java class="org.apache.tuscany.sca.itest.conversational.impl.ConversationalClientStatelessImpl"/>
> <reference name="conversationalReferenceClient" target="ConversationalReferenceClient"/>
> <reference name="conversationalService" requires="Conversational" target="ConversationalServiceStateful">
> <interface.java interface="org.apache.tuscany.sca.itest.conversational.ConversationalService"
> callbackInterface="org.apache.tuscany.sca.itest.conversational.ConversationalCallback" />
> <binding.ws/>
> <callback>
> <binding.ws/>
> </callback>
> </reference>
> <reference name="conversationalService2" target="ConversationalServiceStateful">
> <binding.ws/>
> </reference>
> </component>
> It's not clear from the spec if there should be an EndsConversation intent for operations.
> These intents would drive the existing underlying conversational functionality by augmenting the interface model will appropriate
> conversation information.
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