[cdi-dev] [JBoss JIRA] Commented: (CDI-110) Provide support for binding an invocation handler to an interface or abstract class

[George Gastaldi (JIRA)]

    [ https://issues.jboss.org/browse/CDI-110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602793#comment-12602793 ] 

George Gastaldi commented on CDI-110:
-------------------------------------

Then what would be the difference between a ServiceHandler and an Interceptor ? 

As stated before, the goal of a ServiceHandler is to provide an implementation to an abstract class or an interface.

I believe that allowing multiple ServiceHandler(s) would lead to confusion, as when to create an Interceptor and when to create a ServiceHandler. 

Thoughts welcome

> Provide support for binding an invocation handler to an interface or abstract class
> -----------------------------------------------------------------------------------
>
>                 Key: CDI-110
>                 URL: https://issues.jboss.org/browse/CDI-110
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>          Components: Inheritance and Specialization
>    Affects Versions: 1.0
>            Reporter: George Gastaldi
>            Assignee: George Gastaldi
>              Labels: cdi
>             Fix For: 1.1 (Proposed)
>
>
> The purpose of this feature is to allow interfaces and abstract classes to be automatically implemented by an invocation handler to which all abstract method invocations are delegated. The invocation handler would get "bound" to the type using the same strategy as is used for interceptor binding.
> Binding type:
> {code:java}
> @Target({ METHOD, TYPE })
> @Retention(RetentionPolicy.RUNTIME)
> @ServiceHandlerBindingType
> public @interface EchoService {}
> {code}
> Invocation handler:
> {code:java}
> @ServiceHandlerBindingType
> @EchoService
> public class EchoServiceHandler {
>     @AroundInvoke
>     public Object invoke(InvocationContext ctx) {
>         return ctx.getMethod().getName().toString();
>     }
> }
> {code}
> Usage:
> {code:java}
> @EchoService
> public interface HelloWorld {
>    String helloWorld();
> }
> {code}

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