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# conditionalvisitor validator

## Description

The ConditionalVisitorFieldValidator will forward validation to the VisitorFieldValidator only if the expression will evaluate to true.

## Parameters

- `expression` - an OGNL expression which should evaluate to true to pass validation to the VisitorFieldValidator.

## Examples

    <field name="colleaguePosition">
        <field-validator type="conditionalvisitor">
            <param name="expression">reason == 'colleague' and colleaguePositionID == 'OTHER'</param>
            <message>You must select reason Colleague and position Other</message>
        </field-validator>
    </field>

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