[cdi-dev] [JBoss JIRA] (CDI-686) Could InterceptionFactory accept an interface as type parameter
Antoine Sabot-Durand (JIRA)
issues at jboss.org
Thu Feb 23 10:22:00 EST 2017
[ https://issues.jboss.org/browse/CDI-686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13368267#comment-13368267 ]
Antoine Sabot-Durand commented on CDI-686:
------------------------------------------
Ok, got it. But as Martin and I said it's a bit late to work on that without risking making error in standardisation.
So I still suggest that we make it non portable to allow us to cleanly specify it in the future.
On the Weld side, we'll probably add this support (that doesn't exist right now) to allow these use case.
> 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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