OclInvalid

OclInvalid

The type OclInvalid is a type that conforms to all other types. It has one single instance, identified as invalid. Any property call applied on invalid results in invalid, except for the operations oclIsUndefined() and oclIsInvalid(). OclInvalid is itself an instance of the metatype InvalidType.

conformsTo OclVoid

Associations

oclBadProperty : OclInvalid

Operations

allInstances() : Set(OclSelf)

Returns invalid.

=(object2 : OclSelf) : Boolean precedence: EQUALITY

Returns invalid.

<>(object2 : OclSelf) : Boolean precedence: EQUALITY

Returns invalid.

oclBadOperation() : OclInvalid

toString() : String

Returns ‘invalid’.