Class TopicListener

Defined in File TopicListener.hpp

Inheritance Relationships

Base Type

public eprosima::fastdds::dds::TopicListener (Class TopicListener)

Derived Type

public dds::topic::NoOpTopicListener (Class NoOpTopicListener)

Class Documentation

class TopicListener : public eprosima::fastdds::dds::TopicListener 

Topic events Listener.

Since a Topic is an Entity, it has the ability to have a Listener associated with it. In this case, the associated Listener should be of type TopicListener. This interface must be implemented by the application. A user-defined class must be provided by the application which must extend from the TopicListener class.

The TopicListener provides a generic mechanism (actually a callback function) for the Data Distribution Service to notify the application of relevant asynchronous status change events, such as a missed deadline, violation of a QosPolicy setting, etc. The TopicListener is related to changes in communication status StatusConditions.