Mercurial > hg > truffle
annotate graal/com.oracle.max.base/src/com/sun/max/collect/Mapping.java @ 4184:fa6b78681c54
Added copyright check to the gate.
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 03 Jan 2012 12:37:31 +0100 |
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1 /* |
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2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.max.collect; |
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24 |
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25 import java.util.*; |
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26 |
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27 /** |
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28 * An object that maps keys to values. A map cannot contain duplicate keys; each key can map to at most one value. |
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29 * <p> |
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30 * The implementations of this interface provide the following behavior be default: |
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31 * <ul> |
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32 * <li>{@code null} keys are illegal in Mapping.</li> |
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33 * <li>The iterators derived from {@link #keys()} and {@link #values()} do not support |
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34 * {@linkplain Iterator#remove() removal} and are <b>not</b> fail-fast (see {@link HashMap} for a description of fail-fast). |
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35 * </ul> |
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36 */ |
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37 public interface Mapping<K, V> { |
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38 |
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39 V get(K key); |
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40 |
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41 V put(K key, V value); |
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42 |
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43 V remove(K key); |
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44 |
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45 void clear(); |
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46 |
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47 boolean containsKey(K key); |
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48 |
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49 int length(); |
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50 |
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51 /** |
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52 * Gets an iterable view of the keys in this map. |
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53 */ |
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54 IterableWithLength<K> keys(); |
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55 |
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56 /** |
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57 * Gets an iterable view of the values in this map. |
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58 */ |
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59 IterableWithLength<V> values(); |
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60 |
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61 } |