Constraints are used to define conditions that must be met by the value of a variable so that the value can be transferred to the system. Author: schukai GmbH Classes AbstractConstraint The abstract constraint AbstractOperator The abstract operator constraint AndOperator A and operator constraint Invalid A constraint that always invalid IsArray A constraint to check if a value is an array IsObject A constraint to check if a value is an object OrOperator A or operator Valid A constraint that always valid