An application built on the presented architecture can make use of an object that implements the
mmstream.sessionSessionAgent interface to manage session description import and export.
The interface prescribes
an addSessionImport() and an addSessionExport() method,
which both pass a Connection and a SessionMapper object as arguments. The methods
are intended to start threads that perpetually receive and forward session descriptions by means of the
Connection object. The importing and exporting threads must use
specified the SessionMapper
object to decode and encode the session descriptions from and into a session description protocol
representation.
The interface also defines a
exportSession() methods, which is used to transmit a single description of a particular session
and its state, for example at the time of the session's creation or termination.
The mmstream.session.TOMS_SessionAgent class, conforming to the SessionAgent
interface, is provided with the mmstream.session
package. Its implementation is straightforward. It starts a SessionExporter or
SessionImporter thread whenever a addSessionImport() or
addSessionExport() method is called, respectively.