DefaultCollectionFactory.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 io.dstream.support;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * An implementation of {@link CollectionFactory} which defaults 
 * common collections to he following:<br>
 * <pre>
 * List - {@link ArrayList}
 * Set - {@link HashSet}
 * Map - {@link HashMap}
 * </pre>
 */
public class DefaultCollectionFactory implements CollectionFactory {

	/**
	 * 
	 */
	@Override
	public <T> List<T> newList() {
		return new ArrayList<T>();
	}

	/**
	 * 
	 */
	@Override
	public <K, V> Map<K, V> newMap() {
		return new HashMap<K, V>();
	}

	/**
	 * 
	 */
	@Override
	public <T> Set<T> newSet() {
		return new HashSet<>();
	}
}