Java tutorial
/* * Copyright 2015 the original author or authors. * * 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 * * https://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 org.springframework.statemachine.access; import java.util.List; import java.util.function.Consumer; import org.springframework.statemachine.StateMachine; /** * Functional interface for {@link StateMachine} to allow more programmatic * access to underlying functionality. Functions prefixed "doWith" will expose * {@link StateMachineAccess} via {@link Consumer} for better functional * access with jdk8. Functions prefixed "with" is better suitable for lambdas. * * @author Janne Valkealahti * * @param <S> the type of state * @param <E> the type of event */ public interface StateMachineAccessor<S, E> { /** * Execute given function with all recursive regions. * * @param stateMachineAccess the state machine access */ void doWithAllRegions(Consumer<StateMachineAccess<S, E>> stateMachineAccess); /** * Gets all regions. * * @return the all regions */ List<StateMachineAccess<S, E>> withAllRegions(); /** * Execute given function with a region. * * @param stateMachineAccess the state machine access */ void doWithRegion(Consumer<StateMachineAccess<S, E>> stateMachineAccess); /** * Get a region. * * @return the state machine access */ StateMachineAccess<S, E> withRegion(); }