Mercurial > hg > truffle
view graal/com.oracle.max.base/src/com/sun/max/collect/Mapping.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | e233f5660da4 |
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/* * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.max.collect; import java.util.*; /** * An object that maps keys to values. A map cannot contain duplicate keys; each key can map to at most one value. * <p> * The implementations of this interface provide the following behavior be default: * <ul> * <li>{@code null} keys are illegal in Mapping.</li> * <li>The iterators derived from {@link #keys()} and {@link #values()} do not support * {@linkplain Iterator#remove() removal} and are <b>not</b> fail-fast (see {@link HashMap} for a description of fail-fast). * </ul> */ public interface Mapping<K, V> { V get(K key); V put(K key, V value); V remove(K key); void clear(); boolean containsKey(K key); int length(); /** * Gets an iterable view of the keys in this map. */ IterableWithLength<K> keys(); /** * Gets an iterable view of the values in this map. */ IterableWithLength<V> values(); }