Content filters implemented at the source

Submitted by rafaelov on Sat, 11/05/2011 - 13:11

This page (http://www.twinoakscomputing.com/coredx/dds_tour) says that Content filters can be implemented at the source or destination.

How could I implement a content filter the source?

‹ Content Filtered Topic Application stopped unexpectedly on Android Platform ›

Comments

RE: Content filters implemented at the source

Submitted by ctucker on Mon, 11/21/2011 - 16:46.

Content Filtering at the source (DataWriter) is enabled by default. It can be controlled by the 'DataWriterQos.rtps_writer.apply_filters' QoS policy. If this flag set to true, then the Writer will apply content filters before transmitting data.

If any matched DataReader is associated with a ContentFiltered topic, then the DataWriter will apply the filter(s) before sending data. In this case, the data is written 'unicast' to each matched Reader if, and only if, the data passes the filter.

If no matched DataReader is associated with a ContentFiltered topic, then no filtering is performed, and the data may be written via 'multicast' to reach multiple Readers.

Thank you, it´s really

Submitted by rafaelov on Wed, 11/30/2011 - 14:42.

Thank you, it´s really helpful.