DDSKeyedStringDataReader Class Reference

<<interface>> Instantiates DataReader < DDS_KeyedString >. More...

Inheritance diagram for DDSKeyedStringDataReader:

Public Member Functions
virtual DDS_ReturnCode_t	read (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
	Access a collection of data samples from the DDSDataReader.
virtual DDS_ReturnCode_t	take (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
	Access a collection of data-samples from the DDSDataReader.
virtual DDS_ReturnCode_t	read_w_condition (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples, DDSReadCondition *condition)
	Accesses via DDSKeyedStringDataReader::read the samples that match the criteria specified in the DDSReadCondition.
virtual DDS_ReturnCode_t	take_w_condition (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples, DDSReadCondition *condition)
	Analogous to DDSKeyedStringDataReader::read_w_condition except it accesses samples via the DDSKeyedStringDataReader::take operation.
virtual DDS_ReturnCode_t	read_next_sample (DDS_KeyedString &received_data, DDS_SampleInfo &sample_info)
	Copies the next not-previously-accessed data value from the DDSDataReader.
virtual DDS_ReturnCode_t	take_next_sample (DDS_KeyedString &received_data, DDS_SampleInfo &sample_info)
	Copies the next not-previously-accessed data value from the DDSDataReader.
virtual DDS_ReturnCode_t	read_instance (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &a_handle=DDS_HANDLE_NIL, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
	Access a collection of data samples from the DDSDataReader.
virtual DDS_ReturnCode_t	take_instance (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &a_handle=DDS_HANDLE_NIL, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
	Access a collection of data samples from the DDSDataReader.
virtual DDS_ReturnCode_t	read_instance_w_condition (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &a_handle=DDS_HANDLE_NIL, DDSReadCondition *condition=NULL)
	Accesses via DDSKeyedStringDataReader::read_instance the samples that match the criteria specified in the DDSReadCondition.
virtual DDS_ReturnCode_t	take_instance_w_condition (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &a_handle=DDS_HANDLE_NIL, DDSReadCondition *condition=NULL)
	Accesses via DDSKeyedStringDataReader::take_instance the samples that match the criteria specified in the DDSReadCondition.
virtual DDS_ReturnCode_t	read_next_instance (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &previous_handle=DDS_HANDLE_NIL, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
	Access a collection of data samples from the DDSDataReader.
virtual DDS_ReturnCode_t	take_next_instance (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &previous_handle=DDS_HANDLE_NIL, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
	Access a collection of data samples from the DDSDataReader.
virtual DDS_ReturnCode_t	read_next_instance_w_condition (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &previous_handle=DDS_HANDLE_NIL, DDSReadCondition *condition=NULL)
	Accesses via DDSKeyedStringDataReader::read_next_instance the samples that match the criteria specified in the DDSReadCondition.
virtual DDS_ReturnCode_t	take_next_instance_w_condition (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &previous_handle=DDS_HANDLE_NIL, DDSReadCondition *condition=NULL)
	Accesses via DDSKeyedStringDataReader::take_next_instance the samples that match the criteria specified in the DDSReadCondition.
virtual DDS_ReturnCode_t	return_loan (DDS_KeyedStringSeq &received_data, DDS_SampleInfoSeq &info_seq)
	Indicates to the DDSDataReader that the application is done accessing the collection of received_data and info_seq obtained by some earlier invocation of read or take on the DDSDataReader.
virtual DDS_ReturnCode_t	get_key_value (DDS_KeyedString &key_holder, const DDS_InstanceHandle_t &handle)
	Retrieve the instance key that corresponds to an instance handle.
virtual DDS_ReturnCode_t	get_key_value (char *key, const DDS_InstanceHandle_t &handle)
	<<extension>> Retrieve the instance key that corresponds to an instance handle.
virtual DDS_InstanceHandle_t	lookup_instance (const DDS_KeyedString &key_holder)
	Retrieve the instance handle that corresponds to an instance key_holder.
virtual DDS_InstanceHandle_t	lookup_instance (const char *key)
	<<extension>> Retrieve the instance handle that corresponds to an instance key.
Public Member Functions inherited from DDSDataReader
virtual DDSReadCondition *	create_readcondition (DDS_SampleStateMask sample_states, DDS_ViewStateMask view_states, DDS_InstanceStateMask instance_states)
	Creates a DDSReadCondition.
virtual DDSReadCondition *	create_readcondition_w_params (DDS_ReadConditionParams &params)
	<<extension>> Creates a DDSReadCondition with parameters.
virtual DDSQueryCondition *	create_querycondition (DDS_SampleStateMask sample_states, DDS_ViewStateMask view_states, DDS_InstanceStateMask instance_states, const char *query_expression, const struct DDS_StringSeq &query_parameters)
	Creates a DDSQueryCondition.
virtual DDSQueryCondition *	create_querycondition_w_params (DDS_QueryConditionParams &params)
	<<extension>> Creates a DDSQueryCondition with parameters.
virtual DDS_ReturnCode_t	delete_readcondition (DDSReadCondition *condition)
	Deletes a DDSReadCondition or DDSQueryCondition attached to the DDSDataReader.
virtual DDS_ReturnCode_t	delete_contained_entities ()
	Deletes all the entities that were created by means of the "create" operations on the DDSDataReader.
virtual DDS_ReturnCode_t	wait_for_historical_data (const DDS_Duration_t &max_wait)
	Waits until all "historical" data is received for DDSDataReader entities that have a non-VOLATILE Durability Qos kind.
virtual DDS_ReturnCode_t	acknowledge_sample (const DDS_SampleInfo &sample_info)
	Acknowledge a single sample explicitly.
virtual DDS_ReturnCode_t	acknowledge_all ()
	Acknowledge all previously accessed samples.
virtual DDS_ReturnCode_t	acknowledge_sample (const DDS_SampleInfo &sample_info, const DDS_AckResponseData_t &response_data)
	Acknowledge a single sample explicitly.
virtual DDS_ReturnCode_t	acknowledge_all (const DDS_AckResponseData_t &response_data)
	Acknowledge all previously accessed samples.
virtual DDS_ReturnCode_t	get_matched_publications (DDS_InstanceHandleSeq &publication_handles)
	Retrieve the list of publications currently "associated" with this DDSDataReader.
virtual DDS_ReturnCode_t	get_matched_publication_data (DDS_PublicationBuiltinTopicData &publication_data, const DDS_InstanceHandle_t &publication_handle)
	This operation retrieves the information on a publication that is currently "associated" with the DDSDataReader.
virtual DDS_ReturnCode_t	get_matched_publication_participant_data (DDS_ParticipantBuiltinTopicData &participant_data, const DDS_InstanceHandle_t &publication_handle)
	<<extension>> This operation retrieves the information on the discovered DDSDomainParticipant associated with the publication that is currently matching with the DDSDataReader.
virtual DDSTopicDescription *	get_topicdescription ()
	Returns the DDSTopicDescription associated with the DDSDataReader.
virtual DDSSubscriber *	get_subscriber ()
	Returns the DDSSubscriber to which the DDSDataReader belongs.
virtual DDS_ReturnCode_t	get_sample_rejected_status (DDS_SampleRejectedStatus &status)
	Accesses the DDS_SAMPLE_REJECTED_STATUS communication status.
virtual DDS_ReturnCode_t	get_liveliness_changed_status (DDS_LivelinessChangedStatus &status)
	Accesses the DDS_LIVELINESS_CHANGED_STATUS communication status.
virtual DDS_ReturnCode_t	get_requested_deadline_missed_status (DDS_RequestedDeadlineMissedStatus &status)
	Accesses the DDS_REQUESTED_DEADLINE_MISSED_STATUS communication status.
virtual DDS_ReturnCode_t	get_requested_incompatible_qos_status (DDS_RequestedIncompatibleQosStatus &status)
	Accesses the DDS_REQUESTED_INCOMPATIBLE_QOS_STATUS communication status.
virtual DDS_ReturnCode_t	get_sample_lost_status (DDS_SampleLostStatus &status)
	Accesses the DDS_SAMPLE_LOST_STATUS communication status.
virtual DDS_ReturnCode_t	get_subscription_matched_status (DDS_SubscriptionMatchedStatus &status)
	Accesses the DDS_SUBSCRIPTION_MATCHED_STATUS communication status.
virtual DDS_ReturnCode_t	get_datareader_cache_status (DDS_DataReaderCacheStatus &status)
	<<extension>> Get the datareader cache status for this reader.
virtual DDS_ReturnCode_t	get_datareader_protocol_status (DDS_DataReaderProtocolStatus &status)
	<<extension>> Get the datareader protocol status for this reader.
virtual DDS_ReturnCode_t	get_matched_publication_datareader_protocol_status (DDS_DataReaderProtocolStatus &status, const DDS_InstanceHandle_t &publication_handle)
	<<extension>> Get the datareader protocol status for this reader, per matched publication identified by the publication_handle.
virtual DDS_ReturnCode_t	set_qos (const DDS_DataReaderQos &qos)
	Sets the reader QoS.
virtual DDS_ReturnCode_t	get_qos (DDS_DataReaderQos &qos)
	Gets the reader QoS.
virtual DDS_ReturnCode_t	set_qos_with_profile (const char *library_name, const char *profile_name)
	<<extension>> Change the QoS of this reader using the input XML QoS profile.
virtual DDS_ReturnCode_t	set_listener (DDSDataReaderListener *l, DDS_StatusMask mask=DDS_STATUS_MASK_ALL)
	Sets the reader listener.
virtual DDSDataReaderListener *	get_listener ()
	Get the reader listener.
virtual DDSTopicQuery *	create_topic_query (const DDS_TopicQuerySelection &selection)
	Creates a DDSTopicQuery.
virtual DDS_ReturnCode_t	delete_topic_query (DDSTopicQuery *query)
	Deletes a DDSTopicQuery.
virtual DDSTopicQuery *	lookup_topic_query (const DDS_GUID_t &guid)
	Retrieves an existing DDSTopicQuery.
virtual DDS_ReturnCode_t	enable ()
	Enables the DDSEntity.
virtual DDSStatusCondition *	get_statuscondition ()
	Allows access to the DDSStatusCondition associated with the DDSEntity.
virtual DDS_StatusMask	get_status_changes ()
	Retrieves the list of communication statuses in the DDSEntity that are triggered.
virtual DDS_InstanceHandle_t	get_instance_handle ()
	Allows access to the DDS_InstanceHandle_t associated with the DDSEntity.

Static Public Member Functions
static DDSKeyedStringDataReader *	narrow (DDSDataReader *reader)
	Narrow the given DDSDataReader pointer to a DDSKeyedStringDataReader pointer.

Detailed Description

<<interface>> Instantiates DataReader < DDS_KeyedString >.

When reading or taking data with this reader, if you request a copy of the samples instead of a loan, and a string in a destination data sample is NULL, the middleware will allocate a new string for you of sufficient length to hold the received string. The new string will be allocated with DDS_String_alloc; the sample's destructor will delete it.

A non- NULL string is assumed to be allocated to sufficient length to store the incoming data. It will not be reallocated.

See Also

FooDataReader

DDSDataReader

Member Function Documentation

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE, DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE  )

virtual

Access a collection of data samples from the DDSDataReader.

See Also

FooDataReader::read

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE, DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE  )

virtual

Access a collection of data-samples from the DDSDataReader.

See Also

FooDataReader::take

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read_w_condition ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples, DDSReadCondition *  condition  )

virtual

Accesses via DDSKeyedStringDataReader::read the samples that match the criteria specified in the DDSReadCondition.

See Also

FooDataReader::read_w_condition

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take_w_condition ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples, DDSReadCondition *  condition  )

virtual

Analogous to DDSKeyedStringDataReader::read_w_condition except it accesses samples via the DDSKeyedStringDataReader::take operation.

See Also

FooDataReader::take_w_condition

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read_next_sample ( DDS_KeyedString &  received_data, DDS_SampleInfo &  sample_info  )

virtual

Copies the next not-previously-accessed data value from the DDSDataReader.

See Also

FooDataReader::read_next_sample

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take_next_sample ( DDS_KeyedString &  received_data, DDS_SampleInfo &  sample_info  )

virtual

Copies the next not-previously-accessed data value from the DDSDataReader.

See Also

FooDataReader::take_next_sample

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read_instance ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  a_handle = DDS_HANDLE_NIL, DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE, DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE  )

virtual

Access a collection of data samples from the DDSDataReader.

See Also

FooDataReader::read_instance

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take_instance ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  a_handle = DDS_HANDLE_NIL, DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE, DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE  )

virtual

Access a collection of data samples from the DDSDataReader.

See Also

FooDataReader::take_instance

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read_instance_w_condition ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  a_handle = DDS_HANDLE_NIL, DDSReadCondition *  condition = NULL  )

virtual

Accesses via DDSKeyedStringDataReader::read_instance the samples that match the criteria specified in the DDSReadCondition.

See Also

FooDataReader::read_instance_w_condition

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take_instance_w_condition ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  a_handle = DDS_HANDLE_NIL, DDSReadCondition *  condition = NULL  )

virtual

Accesses via DDSKeyedStringDataReader::take_instance the samples that match the criteria specified in the DDSReadCondition.

See Also

FooDataReader::take_instance_w_condition

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read_next_instance ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  previous_handle = DDS_HANDLE_NIL, DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE, DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE  )

virtual

Access a collection of data samples from the DDSDataReader.

See Also

FooDataReader::read_next_instance

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take_next_instance ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  previous_handle = DDS_HANDLE_NIL, DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE, DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE  )

virtual

Access a collection of data samples from the DDSDataReader.

See Also

FooDataReader::take_next_instance

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::read_next_instance_w_condition ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  previous_handle = DDS_HANDLE_NIL, DDSReadCondition *  condition = NULL  )

virtual

Accesses via DDSKeyedStringDataReader::read_next_instance the samples that match the criteria specified in the DDSReadCondition.

See Also

FooDataReader::read_next_instance_w_condition

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::take_next_instance_w_condition ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq, DDS_Long  max_samples = DDS_LENGTH_UNLIMITED, const DDS_InstanceHandle_t &  previous_handle = DDS_HANDLE_NIL, DDSReadCondition *  condition = NULL  )

virtual

Accesses via DDSKeyedStringDataReader::take_next_instance the samples that match the criteria specified in the DDSReadCondition.

See Also

FooDataReader::take_next_instance_w_condition

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::return_loan ( DDS_KeyedStringSeq &  received_data, DDS_SampleInfoSeq &  info_seq  )

virtual

Indicates to the DDSDataReader that the application is done accessing the collection of received_data and info_seq obtained by some earlier invocation of read or take on the DDSDataReader.

See Also

FooDataReader::return_loan

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::get_key_value ( DDS_KeyedString &  key_holder, const DDS_InstanceHandle_t &  handle  )

virtual

Retrieve the instance key that corresponds to an instance handle.

See Also

FooDataReader::get_key_value

virtual DDS_ReturnCode_t DDSKeyedStringDataReader::get_key_value ( char *  key, const DDS_InstanceHandle_t &  handle  )

virtual

<<extension>> Retrieve the instance key that corresponds to an instance handle.

See Also

FooDataReader::get_key_value

virtual DDS_InstanceHandle_t DDSKeyedStringDataReader::lookup_instance ( const DDS_KeyedString &  key_holder )

virtual

Retrieve the instance handle that corresponds to an instance key_holder.

See Also

FooDataReader::lookup_instance

virtual DDS_InstanceHandle_t DDSKeyedStringDataReader::lookup_instance ( const char *  key )

virtual

<<extension>> Retrieve the instance handle that corresponds to an instance key.

See Also

FooDataReader::lookup_instance

static DDSKeyedStringDataReader* DDSKeyedStringDataReader::narrow ( DDSDataReader *  reader )

static

Narrow the given DDSDataReader pointer to a DDSKeyedStringDataReader pointer.

See Also

FooDataReader::narrow