[cdi-dev] [JBoss JIRA] (CDI-403) why decorator requires interface
Antoine Sabot-Durand (JIRA)
issues at jboss.org
Sun Oct 9 22:11:00 EDT 2016
[ https://issues.jboss.org/browse/CDI-403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Sabot-Durand resolved CDI-403.
--------------------------------------
Resolution: Duplicate Issue
Duplicate of CDI-224
> why decorator requires interface
> --------------------------------
>
> Key: CDI-403
> URL: https://issues.jboss.org/browse/CDI-403
> Project: CDI Specification Issues
> Issue Type: Feature Request
> Reporter: Mathieu Lachance
> Labels: F2F2016
> Fix For: 2.0 (discussion)
>
>
> As discussed with Jozef Hartinger on the WELD forum thread (see forum reference and CDI-224),
> would it be possible to revisit why decorator requires an interface ?
> I do not understand the semantic difference between:
> 1. a decorator to be an abstract class which implements an interface, which delegate to the same interface.
> 2. a decorator to be a concrete class which extends a another class, which delegates to the same class.
> Why 1. should be allowed and why 2. should be disallowed ?
> As stated in CDI-224, if there is no technical reason of disallowing 2., should it be then considerate as a vendor specific feature to support it whether or not ?
> It is kind of sad that only decorators requires an interface while all the others Java EE 6 features do not.
> Thanks,
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