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https://issues.apache.org/jira/browse/EXTVAL-114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12901228#action_12901228
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Gerhard Petracek commented on EXTVAL-114:
-----------------------------------------
it is planned to introduce @Expression as well as pluggable expression
interpreters in r5.
we could use these mechanisms also for this feature. -> let's wait for r5.
you can use the implementation of the patch in a custom validation module (in
this case you just have to ignore CommonMetaDataKeys or introduce e.g.
CustomCommonMetaDataKeys).
current syntax:
@Valid(when = "value eq ...", validationErrorMsgKey = "invalid - expression:
{0}")
or
@Valid(when = "#{value eq ...}", validationErrorMsgKey = "...")
syntax with @Expression:
@Valid(when = @Expression("value eq ..."), validationErrorMsgKey = "...")
> EL-expression as condition
> --------------------------
>
> Key: EXTVAL-114
> URL: https://issues.apache.org/jira/browse/EXTVAL-114
> Project: MyFaces Extensions Validator
> Issue Type: New Feature
> Components: Property Validation
> Reporter: Walter Mourão
> Priority: Minor
> Attachments: EXTVAL-114_first_draft.patch
>
>
> It would be useful to define a condition as an EL expression.
> Something like:
> @ValidWhen("property * 5 = 55")
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