public void clear ( final Name username ) { // if we're holding this username for a session observer, postpone until after the current // dispatch finishes if ( _holds . contains ( username ) ) { _holds . remove ( username ) ; _omgr . postRunnable ( new Runnable ( ) { public void run ( ) { clear ( username ) ; } } ) ; return ; } // Log.info("Clearing history for " + username + "."); _histories . remove ( username ) ; }
Clears the chat history for the specified user .