type Ref_Access is access all Ref'Class;
function Get_Type_Name
| ( | Self | : not null access Ref) return DDS.String is abstract; |
The type name defines a locally unique type for the publication or the subscription.
The type_name corresponds to a unique string used to register a type via the FooTypeSupport.register_type procedure.
Thus, the type_name implies an association with a corresponding DDS.TypeSupport and this DDS.TopicDescription.
self: <<in>> Cannot be NULL
Returns: the type name. The returned type name is valid until the DDS.TopicDescription is deleted.
Postcondition: The result is non-NULL.
See also: DDS.TypeSupport, FooTypeSupport
function Get_Name
| ( | Self | : not null access Ref) return DDS.String is abstract; |
self: <<in>> Cannot be NULL
Returns: the name used to create this DDS.TopicDescription. The returned topic name is valid until the DDS.TopicDescription is deleted.
Postcondition: The result is non-NULL.
function Get_Participant
| ( | Self | : not null access Ref) return access DDS.DomainParticipant.Ref'Class is abstract; |
self: <<in>> Cannot be NULL
Returns: The DDS.DomainParticipant to which the DDS.TopicDescription belongs.
Postcondition: The result is non-NULL.
DDS.TopicDescription represents the fact that both publications and subscriptions are tied to a single data-type. Its attribute type_name defines a unique resulting type for the publication or the subscription and therefore creates an implicit association with a DDS.TypeSupport.
DDS.TopicDescription has also a name that allows it to be retrieved locally.
See also: DDS.TypeSupport, FooTypeSupport