R6 class with constraints.
The constraints property on Table Schema Fields can be used by consumers to list constraints for validating field values. For example, validating the data in a Tabular Data Resource against its Table Schema; or as a means to validate data being collected or updated via a data entry interface.
All constraints MUST be tested against the logical representation of data, and the physical
representation of constraint values MAY be primitive types as possible in JSON,
or represented as strings that are castable with the type and format rules of the field.
R6Class object.
Object of R6Class .
Constraints specifications,
constraints.checkEnum,
constraints.checkMaximum,
constraints.checkMaxLength,
constraints.checkMinimum,
constraints.checkMinLength,
constraints.checkPattern,
constraints.checkRequired,
constraints.checkUnique
clone()The objects of this class are cloneable with this method.
Constraints$clone(deep = FALSE)
deepWhether to make a deep clone.