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annotate graal/com.oracle.max.base/src/com/sun/max/collect/IdentityHashMapping.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children
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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 */
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29 public class IdentityHashMapping<K, V> implements Mapping<K, V> {
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30
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31 private final Map<K, V> delegate;
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32
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33 public IdentityHashMapping() {
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34 delegate = new IdentityHashMap<>();
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35 }
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36
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37 public IdentityHashMapping(int expectedMaxSize) {
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38 delegate = new IdentityHashMap<>(expectedMaxSize);
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39 }
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40
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41 public synchronized V put(K key, V value) {
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42 return delegate.put(key, value);
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43 }
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44
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45 public synchronized V get(K key) {
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46 final V value = delegate.get(key);
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47 return value;
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48 }
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49
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50 public synchronized boolean containsKey(K key) {
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51 return delegate.containsKey(key);
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52 }
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53
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54 public int length() {
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55 return delegate.size();
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56 }
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57
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58 public void clear() {
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59 delegate.clear();
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60 }
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61
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62 public V remove(K key) {
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63 return delegate.remove(key);
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64 }
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65
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66 public IterableWithLength<K> keys() {
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67 return new IterableWithLength<K>() {
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69 public int size() {
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70 return delegate.size();
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71 }
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73 public Iterator<K> iterator() {
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74 return delegate.keySet().iterator();
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75 }
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76 };
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77 }
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78
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79 public IterableWithLength<V> values() {
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80 return new IterableWithLength<V>() {
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81
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82 public int size() {
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83 return delegate.size();
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84 }
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85
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86 public Iterator<V> iterator() {
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87 return delegate.values().iterator();
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88 }
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89 };
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90 }
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92 }