HashMapSupplier.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 org.apache.tinkerpop.gremlin.util.function;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Supplier;

/**
 * @author Marko A. Rodriguez (http://markorodriguez.com)
 */
public final class HashMapSupplier<K, V> implements Supplier<Map<K, V>>, Serializable {

    private static final HashMapSupplier INSTANCE = new HashMapSupplier();

    private HashMapSupplier() {
    }

    @Override
    public HashMap<K, V> get() {
        return new HashMap<>();
    }

    public static <K, V> HashMapSupplier<K, V> instance() {
        return INSTANCE;
    }
}