Relation <O, D>
direction of the relation, whether it points to origin or destination
Returns Relation<D, O>
inverse relation where newOrigin = oldDestination, newDestination = oldOrigin
tag of the relation
class type for the origin of the relation
class type for the destination of the relation
Relations can be defined between from a
CloudObjectto another, for example between two data types. Relations are directed and have two types: the origin type, the destination type.
Defining a relation between two data types means that instances of these data types can be related with that relation.