[jira] [Commented] (ZEST-114) Make Constraint Annotations Repeatables

["Paul Merlin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZEST-114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360582#comment-15360582 ] 

Paul Merlin commented on ZEST-114:
----------------------------------

I couldn't find any existing Constraints in the codebase for which repetition could make sense except {{@Contains}}.
But it could be changed to accept an array of Strings that the value must contain.

So, this issue is more about making sure the runtime supports repeated constraint annotations.

Either we find a use case that actually needs repeated annotations, or we simply implement support for them using a dumb use case as a test, or we drop that idea completely.

> Make Constraint Annotations Repeatables
> ---------------------------------------
>
>                 Key: ZEST-114
>                 URL: https://issues.apache.org/jira/browse/ZEST-114
>             Project: Zest
>          Issue Type: Improvement
>            Reporter: Paul Merlin
>              Labels: constraints, java8
>             Fix For: 3.0
>
>
> Java 8 introduce repeating annotations.
> We should leverage this for Constraint annotations.
> See https://docs.oracle.com/javase/tutorial/java/annotations/repeating.html



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