DDSTopicQueryHelper Class Reference

Helpers to provide utility operations related to DDSTopicQuery. More...

Static Public Member Functions
static DDS_Boolean	topic_query_data_from_service_request (DDS_TopicQueryData &topic_query_data, const DDS_ServiceRequest &service_request)
	Retrieves the DDS_TopicQueryData data contained in the specified DDS_ServiceRequest. More...

Detailed Description

Helpers to provide utility operations related to DDSTopicQuery.

Member Function Documentation

topic_query_data_from_service_request()

static DDS_Boolean DDSTopicQueryHelper::topic_query_data_from_service_request ( DDS_TopicQueryData &  topic_query_data, const DDS_ServiceRequest &  service_request  )

static

Retrieves the DDS_TopicQueryData data contained in the specified DDS_ServiceRequest.

This operation will extract the content from the request body of the DDS_ServiceRequest and place it into the specified DDS_TopicQueryData object.

The specified DDS_ServiceRequest must be a valid sample associated with the service id DDS_TOPIC_QUERY_SERVICE_REQUEST_ID. Otherwise this operation will return DDS_BOOLEAN_FALSE.

This operation can be called within the context of a DDSDataWriterListener::on_service_request_accepted to retrieve the DDS_TopicQueryData of a DDS_ServiceRequest that has been received with service id DDS_TOPIC_QUERY_SERVICE_REQUEST_ID

Parameters

topic_query_data	<<inout>> A DDS_TopicQueryData object where the content from the service request is extracted.
service_request	<<in>> Input DDS_ServiceRequest that contains the DDS_TopicQueryData as part of its request body.

Returns

DDS_BOOLEAN_TRUE on success.