This interface defines methods of the workflow engine that are
available to a tool agent. An agent implementation that wants to
use these methods must implement the
ContextRequesterContextRequester interface.
author: Michael Lipp version: $Revision: 1.4 $ since: 1.2
Lookup the given ativity specified by its unique key.
Parameters: auk - the activity's unique key the activity throws: InvalidKeyException - if the activity specified byauk cannot be found. throws: RemoteException - if a system-level error occurs.