de.fhg.aisec.ids.comm.ws.protocol.fsm

Class Transition

java.lang.Object

de.fhg.aisec.ids.comm.ws.protocol.fsm.Transition

public class Transition
extends java.lang.Object

A Transition transfers the FSM from a start state to an end state and is triggered by an event.

Associated with a transition is code that is executed when the transition is taken.

Constructor Summary

Constructors

Constructor and Description
Transition(java.lang.Object evtKey, ProtocolState startState, ProtocolState endState, java.util.function.Function<Event,java.lang.Boolean> runBeforeTransition)
Transition(java.lang.Object evtKey, java.lang.String startState, java.lang.String endState, java.util.function.Function<Event,java.lang.Boolean> runBeforeTransition)
Transition(java.lang.String eventName, java.lang.String startState, java.lang.String endState, java.util.function.Function<Event,java.lang.Boolean> runBeforeTransition) Creates a new transition.

Method Summary

Modifier and Type	Method and Description
protected boolean	doBeforeTransition(Event event) Executes code associated with this transition.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Transition

public Transition(java.lang.String eventName,
                  java.lang.String startState,
                  java.lang.String endState,
                  java.util.function.Function<Event,java.lang.Boolean> runBeforeTransition)

Creates a new transition.

Parameters:

eventName - the event triggering this transition.

startState - the start state of this transition.

endState - the end state of this transition.

runBeforeTransition - code executed when the transition is triggered. If the callable returns true, the transition takes place, if the callable returns false, the transition will not take place and the FSM remains in startState.

Transition

public Transition(java.lang.Object evtKey,
                  java.lang.String startState,
                  java.lang.String endState,
                  java.util.function.Function<Event,java.lang.Boolean> runBeforeTransition)

Transition

public Transition(java.lang.Object evtKey,
                  ProtocolState startState,
                  ProtocolState endState,
                  java.util.function.Function<Event,java.lang.Boolean> runBeforeTransition)

Method Detail

doBeforeTransition

protected boolean doBeforeTransition(Event event)

Executes code associated with this transition.

This method returns the result of the executed Callable (true or false) or false in case of any Exceptions. No exceptions will be thrown from this method.

Returns:

Whether