org.apache.ambari.server.state.fsm

Interface MultipleArcTransition<OPERAND,EVENT,STATE extends Enum<STATE>>

public interface MultipleArcTransition<OPERAND,EVENT,STATE extends Enum<STATE>>

Hook for Transition. Post state is decided by Transition hook. Post state must be one of the valid post states registered in StateMachine.

Method Summary

Modifier and Type	Method and Description
STATE	transition(OPERAND operand, EVENT event) Transition hook.

Method Detail

transition

STATE transition(OPERAND operand,
                 EVENT event)

Transition hook.

Parameters:

operand - the entity attached to the FSM, whose internal state may change.

event - causal event

Returns:

the postState. Post state must be one of the valid post states registered in StateMachine.