com.vmware.xenon.common.fsm.FSM Maven / Gradle / Ivy
/*
* Copyright (c) 2014-2015 VMware, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, without warranties or
* conditions of any kind, EITHER EXPRESS OR IMPLIED. See the License for the
* specific language governing permissions and limitations under the License.
*/
package com.vmware.xenon.common.fsm;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
/**
* A Finite State Machine with states of Type T and transitions (labels) of type R.
* The FSM should be initialized by invoking configure() before other usage.
*/
public interface FSM {
void configure(Map> fsmConfig, T initialState);
boolean isTransitionValid(R transition);
boolean isNextState(T target);
T getNextState(R transition);
R getTransition(T target);
Set getTransitions();
Collection getNextStates();
T getCurrentState();
void adjustState(R transition);
}