A channel session is an object that is used to maintain the state of a particular channel between a client and server. When a channel does not provide its own session management, the com.ibm.btt.clientserver.DSEChannelSession class provides a generic mechanism for creating a channel session with a unique session ID. The toolkit provides both the interface and a concrete implementation class, com.ibm.btt.clientserver.DSEChannelSession. The default constructor creates a ChannelSession instance with a unique session ID. The single-parameter (of type string) constructor creates an instance with a specific session ID.