Topic Queries

Use these QoS fields to configure the topic query feature.

Use these QoS fields to configure the topic query feature.

See Querying Data, in the Core Libraries User's Manual, for more information about this feature.

DDS_AsynchronousPublisherQosPolicy	disable_topic_query_publication
	[DEPRECATED] <<extension>> Disable topic query publication.
DDS_AsynchronousPublisherQosPolicy	topic_query_publication_thread
	<<extension>> Settings of the DDS_TopicQuery publication thread.
DDS_DataReaderResourceLimitsQosPolicy	initial_topic_queries
	<<extension>> The initial number of TopicQueries allocated by a DDS_DataReader.
DDS_DataReaderResourceLimitsQosPolicy	max_topic_queries
	<<extension>> The maximum number of active TopicQueries that a DDS_DataReader can create.
DDS_DataWriterResourceLimitsQosPolicy	initial_active_topic_queries
	<<extension>> Represents the initial number of active topic queries a DDS_DataWriter will manage.
DDS_DataWriterResourceLimitsQosPolicy	max_active_topic_queries
	<<extension>> Represents the maximum number of active topic queries a DDS_DataWriter will manage.
DDS_DomainParticipantResourceLimitsQosPolicy	remote_topic_query_allocation
	<<extension>> Allocation settings applied to remote TopicQueries.
DDS_DomainParticipantResourceLimitsQosPolicy	remote_topic_query_hash_buckets
	[DEPRECATED] <<extension>> Number of hash buckets for remote TopicQueries.
DDS_TopicQueryDispatchQosPolicy	enable
	<<extension>> Allows this writer to dispatch TopicQueries
DDS_TopicQueryDispatchQosPolicy	publication_period
	<<basic>> <<extension>> Sets the periodic interval at which samples are published.
DDS_TopicQueryDispatchQosPolicy	samples_per_period
	<<extension>> Sets the maximum number of samples to publish in each publication_period.