t_Facets_Facet

Properties

description : string

Facet description

invariant : boolean

True to validate the facet only on the object where it is declared, false to validate it on all objects having it.

name : identifier

Facet name

Valid values based on“string”.
:?[\p{L}_][\p{L}\p{N}_](:[\p{L}_][\p{L}\p{N}_])*	Value must begin with a letter or an underscore. Case and length are not restricted. Letters, numbers and underscores are allowed. Colon is used as a scope separator. Spaces and other punctuation characters are not allowed.

validation : string

Validation expression taking "this" and "value" as arguments and returning #f, a string id, or a list of format arguments if the facet is invalid.

Facets may have values tested against a validation script. The validation expression takes "this" (the current faceted object) and "value" (the value of the facet) as its arguments and returns #f, a string id, or a list of format arguments if the facet is invalid.

Example: (if (not (number? value))
`("ids.numericValueError" ,value)
) ; where ids.numericValueError is "Facet must be numeric. '{0}' is not valid."

values : string

List of valid values. Set to () for no value validation.

Parents

Facets - A set of facets that can be applied to metadata objects.

Parent topic: Facets