[cdi-dev] [JBoss JIRA] (CDI-686) Could InterceptionFactory accept an interface as type parameter

[Antoine Sabot-Durand (JIRA)]

     [ https://issues.jboss.org/browse/CDI-686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Sabot-Durand updated CDI-686:
-------------------------------------
    Description: 
If you take this code:

{code:java}
    @Produces
    public List<Object> produceList(InterceptionFactory<List<Object>> interceptionFactory) {
        interceptionFactory.ignoreFinalMethods().configure().filterMethods((m) -> {
            if (m.getJavaMember().getName().equals("add")
                    && m.getJavaMember().getParameterCount() == 1) {
                return true;
            }
            return false;
        }).findFirst().get().add(Monitor.Literal.INSTANCE);
        return interceptionFactory.createInterceptedInstance(new ArrayList<>());
    }
{code}

Parameterized type for injected {{InterceptionFactory}} is an interface {{List<Object>}}, so when calling {{configure()}}, user will work with an {{AnnotatedTypeConfigurator<List<Object>>}} to apply interceptor binding.

In a standard interceptor usage, interceptor binding on interface are ignored (even if they have {{@Inherited}} annotation), so doing it with {{InterceptionFactory}} could be confusing for some user.

  was:It's not clear what type of instance an InterceptionFactory should accept vs the parameterized type and restriction regarding them.



> Could InterceptionFactory accept an interface as type parameter
> ---------------------------------------------------------------
>
>                 Key: CDI-686
>                 URL: https://issues.jboss.org/browse/CDI-686
>             Project: CDI Specification Issues
>          Issue Type: Clarification
>    Affects Versions: 2.0 .Final
>            Reporter: Antoine Sabot-Durand
>
> If you take this code:
> {code:java}
>     @Produces
>     public List<Object> produceList(InterceptionFactory<List<Object>> interceptionFactory) {
>         interceptionFactory.ignoreFinalMethods().configure().filterMethods((m) -> {
>             if (m.getJavaMember().getName().equals("add")
>                     && m.getJavaMember().getParameterCount() == 1) {
>                 return true;
>             }
>             return false;
>         }).findFirst().get().add(Monitor.Literal.INSTANCE);
>         return interceptionFactory.createInterceptedInstance(new ArrayList<>());
>     }
> {code}
> Parameterized type for injected {{InterceptionFactory}} is an interface {{List<Object>}}, so when calling {{configure()}}, user will work with an {{AnnotatedTypeConfigurator<List<Object>>}} to apply interceptor binding.
> In a standard interceptor usage, interceptor binding on interface are ignored (even if they have {{@Inherited}} annotation), so doing it with {{InterceptionFactory}} could be confusing for some user.



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