/*
 * Copyright 2016 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
 *
 * 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 org.springframework.statemachine.state;

/**
 * Utility class using holder pattern to keep a {@link State} reference.
 *
 * @author Janne Valkealahti
 *
 * @param <S> the type of state
 * @param <E> the type of event
 */
public class StateHolder<S, E> {

	private State<S, E> state;

	/**
	 * Instantiates a new state holder.
	 *
	 * @param state the state
	 */
	public StateHolder(State<S, E> state) {
		this.state = state;
	}

	/**
	 * Gets the state.
	 *
	 * @return the state
	 */
	public State<S, E> getState() {
		return state;
	}

	/**
	 * Sets the state.
	 *
	 * @param state the state
	 */
	public void setState(State<S, E> state) {
		this.state = state;
	}
}
