[hibernate-issues] [Hibernate-JIRA] Commented: (HV-442) Make clear in the documentation which types are supported for built-in constraints

[Hardy Ferentschik (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HV-442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=42112#action_42112 ] 

Hardy Ferentschik commented on HV-442:
--------------------------------------

I think for now we should just update the docs. We should make sure in BV 1.1 what the real intentions are. Would be stupid to deprecate it and then it turns out that it was just an oversight in the docs.

> Make clear in the documentation which types are supported for built-in constraints
> ----------------------------------------------------------------------------------
>
>                 Key: HV-442
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-442
>             Project: Hibernate Validator
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 4.1.0.Final
>            Reporter: Gunnar Morling
>            Assignee: Gunnar Morling
>             Fix For: 4.2.0.CR1
>
>
> Hibernate Validator supports the standard constraints defined in the Bean Validation AP at more types than required by the specification. E.g. @Min/@Max are supported for Strings, which is beyond what's defined in the spec.
> In order to avoid irritations we should make clear in the documentation (http://docs.jboss.org/hibernate/validator/4.1/reference/en-US/html/validator-usingvalidator.html#validator-defineconstraints-builtin) which types are supported by HV in addition to the BV specification (for @Past/@Future we already do describe this for the Joda types for example).
> Furthermore the annotation processor documentation says (reference guide and web site):
> {quote}
> Have you ever caught yourself by unintentionally doing things like
> annotating Strings with @Min to specify a minimum length (instead of using @Size)
> ...?
> Then the Hibernate Validator Annotation Processor is the right thing for you.
> {quote}
> This example is misleading, as the AP won't mark this situation as an erronous (the described misunderstanding, that @Min would refer to the String length can still happen, though).
> This issue is based on a post in the HV forum (https://forum.hibernate.org/viewtopic.php?f=9&t=1009701).

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