InMemVHLStateLoader.java

/*
 * Copyright 2015 Mirosław Romaniuk (mi9rom@gmail.com)
 * 
 * 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.vaadHL.utl.state;

import java.util.HashMap;

/**
 * Simple in-memory implementation of the {@link IVHLStateLoader} interface.
 *
 */
public class InMemVHLStateLoader implements IVHLStateLoader {

	HashMap<Object, VHLState> container;

	private HashMap<Object, VHLState> getContainer() {
		if (container == null)
			container = new HashMap<>();
		return container;
	}

	@Override
	public void saveState(Object key, VHLState state) {
		getContainer().put(key, state);
	}

	@Override
	public VHLState loadState(Object key) {
		return getContainer().get(key);
	}
}