private void validateStateTransition ( SleeState oldState , SleeState newState ) throws InvalidStateException { if ( oldState == SleeState . STOPPED ) { if ( newState == SleeState . STARTING ) { return ; } } else if ( oldState == SleeState . STARTING ) { if ( newState == SleeState . RUNNING || newState == SleeState . STOPPING ) { return ; } } else if ( oldState == SleeState . RUNNING ) { if ( newState == SleeState . STOPPING ) { return ; } } else if ( oldState == SleeState . STOPPING ) { if ( newState == SleeState . STOPPED ) { return ; } } throw new InvalidStateException ( "illegal slee state transition: " + oldState + " -> " + newState ) ; }
Ensures the standard SLEE lifecycle .