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namespace Drupal\helper\Plugin\Validation\Constraint in Helper 8

Classsort descending Location Description
EntityFieldUniqueValues src/Plugin/Validation/Constraint/EntityFieldUniqueValues.php Checks if an entity field has duplicate values.
EntityFieldUniqueValuesValidator src/Plugin/Validation/Constraint/EntityFieldUniqueValuesValidator.php Validates duplicate entity field values.
FieldListUniqueValues src/Plugin/Validation/Constraint/FieldListUniqueValues.php Checks if a field has duplicate values.
FieldListUniqueValuesValidator src/Plugin/Validation/Constraint/FieldListUniqueValuesValidator.php Validates duplicate field values.