18.1.4.7. SampleInfo

class fastdds.SampleInfo

SampleInfo is the information that accompanies each sample that is ‘read’ or ‘taken.’

property absolute_generation_rank

the generation difference between the time the sample was received, and the time the most recent sample was received. The most recent sample used for the calculation may or may not be in the returned collection

property disposed_generation_count

number of times the instance had become alive after it was disposed

property generation_rank

the generation difference between the time the sample was received, and the time the most recent sample in the collection was received.

property instance_handle

identifies locally the corresponding instance

property instance_state

indicates whether the instance is currently in existence or, if it has been disposed, the reason why it was disposed.

property no_writers_generation_count

number of times the instance had become alive after it was disposed because no writers

property publication_handle

identifies locally the DataWriter that modified the instance Is the same InstanceHandle_t that is returned by the operation get_matched_publications on the DataReader

property reception_timestamp

time provided by the DataReader when the sample was added to its history

property related_sample_identity

Related Sample Identity (Extension for RPC)

property sample_identity

Sample Identity (Extension for RPC)

property sample_rank

number of samples related to the same instance that follow in the collection

property sample_state

indicates whether or not the corresponding data sample has already been read

property source_timestamp

time provided by the DataWriter when the sample was written

property thisown

The membership flag

property valid_data

whether the DataSample contains data or is only used to communicate of a change in the instance

property view_state

indicates whether the DataReader has already seen samples for the most-current generation of the related instance.