Add a new object type to a relationship role.

Creates an attribute definition.

Creates a new relationship instance by connecting pObjectFrom with pObjectTo.

Deletes the relationship type. This method implicitly deletes all relationship instances of this type.

Retrieves an attribute definition.

Retrieves all attribute definitions of this relationship type.

Retrieves the containig package.

Retrieves all attached object types of one direction.

Moves the relationship type to a different package. It is recommended that the relationship type name is modified to reflect the new package membership.

Remove an object type from a relationship role. Implicitly delete relationship instances that become invalid.

Re-position a attribute definition within the relationship type.

Re-order all attribute definitions of the relationship type.

Retrieves an attribute definition.