ServiceRequest Class Reference

A request coming from one of the built-in services. More...

Inherits AbstractBuiltinTopicData.

Public Attributes
int	service_id
	The id of the service that the request was sent on.
final GUID_t	instance_id
	Each ServiceRequest is keyed on the instance_id.
final ByteSeq	request_body
	Service-specific information.

Static Public Attributes
static final int	UNKNOWN_SERVICE_ID
	An invalid Service Id.
static final int	TOPIC_QUERY_SERVICE_ID
	Service Id for the com.rti.dds.subscription.TopicQuery Service.

Additional Inherited Members
Public Member Functions inherited from Struct
abstract boolean	equals (Object obj)
abstract int	hashCode ()
String	toString ()
Static Public Member Functions inherited from AbstractBuiltinTopicData
static Iterator	topic_name_iteratorI ()
Protected Member Functions inherited from Struct
	Struct ()
abstract void	pull_from_nativeI (long native_status)
abstract void	push_to_nativeI (long native_status)

Detailed Description

A request coming from one of the built-in services.

Data associated with the built-in topic com.rti.dds.topic.builtin.ServiceRequestTypeSupport.SERVICE_REQUEST_TOPIC_NAME. It contains service-specific information.

See Also

com.rti.dds.topic.builtin.ServiceRequestTypeSupport.SERVICE_REQUEST_TOPIC_NAME

builtin.ParticipantBuiltinTopicDataDataReader

Member Data Documentation

int service_id

The id of the service that the request was sent on.

There can be multiple services that use the built-in ServiceRequest topic. The service_id identifies which service a specific request was sent from.

See Also

com.rti.dds.topic.builtin.ServiceRequest.UNKNOWN_SERVICE_ID

com.rti.dds.topic.builtin.ServiceRequest.TOPIC_QUERY_SERVICE_ID

final GUID_t instance_id

Each ServiceRequest is keyed on the instance_id.

The instance_id provides a way for users to differentiate between different requests coming from the same service.

final ByteSeq request_body

Service-specific information.

Each service uses the request_body field to send information specific to that service in the form of an opaque sequence of bytes. Each service provides a helper function that will deserialize the information from the request body.

See Also

com.rti.dds.subscription.TopicQueryHelper.topic_query_data_from_service_request