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From "Donald Woods (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1107) Provide TraversableResolver for use with Bean Validation Factory
Date Fri, 31 Jul 2009 02:18:14 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737397#action_12737397
] 

Donald Woods commented on OPENJPA-1107:
---------------------------------------

Rev799491 implements a TraversableResolverImpl that behaves identical to the default JPA aware
one that BV providers must implement, so not sure why we have to provide this yet....  But,
it's hooked into the ValidatorImpl code, as required by the spec.

There is code commented out in the TRImpl that I would like to use, which would be more efficient
than the default behavior of interrogating all providers, but it causes a java.lang.UnsupportedOperationException.

> Provide TraversableResolver for use with Bean Validation Factory
> ----------------------------------------------------------------
>
>                 Key: OPENJPA-1107
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1107
>             Project: OpenJPA
>          Issue Type: Sub-task
>          Components: validation
>    Affects Versions: 2.0.0-M2
>            Reporter: Jeremy Bauer
>            Assignee: Donald Woods
>             Fix For: 2.0.0
>
>
> Per the JPA 2.0 specification, a TraversableResolver must be provided in order to meet
the validation criteria outlined in section 3.6.1.2 of the 3/13/09 draft.
> The validator instance that is used for automatic validation upon lifecycle events must
use a TraversableResolver
> that has the following behavior:
> • Attributes that have not been loaded must not be loaded.
> • Entity associations (single-valued or multi-valued) must not be traversed.
> These requirements guarantee that no unloaded attribute or association will be loaded
by side effect and
> that no entity will be validated more than once.
> Embeddable attributes must be validated only if the Valid annotation has been specified
on them.
> It is the responsibility of the persistence provider to pass an instance implementing
the javax.validation.
> TraversableResolver interface to the Bean Validation provider by calling ValidatorFactory.
> usingContext().traversableResolver(

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