https://github.com/eclipse/eclipse-collections/eclipse-collections-api: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
/*
 * Copyright (c) 2016 Goldman Sachs.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.api.map;

import java.util.Map;
import java.util.concurrent.ConcurrentMap;

import org.eclipse.collections.api.block.procedure.Procedure;


A ConcurrentMutableMap provides an api which combines and supports both MutableMap and ConcurrentMap.

/**
 * A ConcurrentMutableMap provides an api which combines and supports both MutableMap and ConcurrentMap.
 */
public interface ConcurrentMutableMap<K, V>
        extends MutableMap<K, V>, ConcurrentMap<K, V>
{
    @Override
    ConcurrentMutableMap<K, V> tap(Procedure<? super V> procedure);

    @Override
    default V getOrDefault(Object key, V defaultValue)
    {
        return this.getIfAbsentValue((K) key, defaultValue);
    }

    @Override
    default ConcurrentMutableMap<K, V> withMap(Map<? extends K, ? extends V> map)
    {
        this.putAll(map);
        return this;
    }
}