@Beta

Package io.cdap.cdap.api.messaging

Classes and interfaces for interacting with the Transactional Messaging System.

See: Description

Interface Summary

Interface	Description
Message	Represents a message in the Transactional Messaging System.
MessageFetcher	Provides message fetching functions of the Transactional Messaging System.
MessagePublisher	Provides message publishing functions of the Transactional Messaging System.
MessagingAdmin	Provides topic administration functions of the Transactional Messaging System.
MessagingContext	Provides access to the Transactional Messaging System.

Exception Summary

Exception	Description
MessagingException	Signals that an exception related to the messaging system has occurred.
TopicAlreadyExistsException	Exception thrown when trying to create a topic when a topic of that name already exists.
TopicNotFoundException	Exception thrown when attempting an operation on a topic when a topic of that name does not exist.

Package io.cdap.cdap.api.messaging Description

Classes and interfaces for interacting with the Transactional Messaging System. Note: The Transactional Messaging System is an experimental feature, introduced in CDAP 4.0; all APIs related to it are subject to change in future CDAP releases until it is out of the beta phase.