Provides the definition of the Relation Service.
-
class
This exception is raised when relation id provided for a relation is already
used.
class
This exception is raised when an invalid Relation Service is provided.
class
class
This exception is raised when, in a role info, its minimum degree is greater
than its maximum degree.
class
class
This exception is raised when there is no relation for a given relation id
in a Relation Service.
class
This exception is raised when an access is done to the Relation Service and
that one is not registered.
class
This exception is raised when there is no relation type with given name in
Relation Service.
class
This exception is raised when there is no role info with given name in a
given relation type.
class
This exception is raised when a role in a relation does not exist, or is not
readable, or is not settable.