17 |
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public class RWMap implements Map { |
18 |
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private final Map m; |
19 |
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private final ReentrantReadWriteLock rwl = new ReentrantReadWriteLock(); |
20 |
< |
|
20 |
> |
|
21 |
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public RWMap(Map m) { |
22 |
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if (m == null) |
23 |
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throw new NullPointerException(); |
24 |
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this.m = m; |
25 |
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} |
26 |
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|
27 |
< |
public RWMap() { |
27 |
> |
public RWMap() { |
28 |
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this(new TreeMap()); // use TreeMap by default |
29 |
< |
// this(new IdentityHashMap()); |
29 |
> |
// this(new IdentityHashMap()); |
30 |
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} |
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|
32 |
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public int size() { |
33 |
< |
rwl.readLock().lock(); try {return m.size();} finally { rwl.readLock().unlock(); } |
33 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
34 |
> |
l.lock(); try {return m.size();} finally { l.unlock(); } |
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} |
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public boolean isEmpty(){ |
37 |
< |
rwl.readLock().lock(); try {return m.isEmpty();} finally { rwl.readLock().unlock(); } |
37 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
38 |
> |
l.lock(); try {return m.isEmpty();} finally { l.unlock(); } |
39 |
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} |
40 |
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|
41 |
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public Object get(Object key) { |
42 |
< |
rwl.readLock().lock(); try {return m.get(key);} finally { rwl.readLock().unlock(); } |
42 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
43 |
> |
l.lock(); try {return m.get(key);} finally { l.unlock(); } |
44 |
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} |
45 |
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|
46 |
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public boolean containsKey(Object key) { |
47 |
< |
rwl.readLock().lock(); try {return m.containsKey(key);} finally { rwl.readLock().unlock(); } |
47 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
48 |
> |
l.lock(); try {return m.containsKey(key);} finally { l.unlock(); } |
49 |
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} |
50 |
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public boolean containsValue(Object value){ |
51 |
< |
rwl.readLock().lock(); try {return m.containsValue(value);} finally { rwl.readLock().unlock(); } |
51 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
52 |
> |
l.lock(); try {return m.containsValue(value);} finally { l.unlock(); } |
53 |
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} |
54 |
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|
55 |
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|
56 |
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public Set keySet() { // Not implemented |
57 |
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return m.keySet(); |
58 |
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} |
59 |
< |
|
59 |
> |
|
60 |
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public Set entrySet() { // Not implemented |
61 |
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return m.entrySet(); |
62 |
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} |
63 |
< |
|
63 |
> |
|
64 |
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public Collection values() { // Not implemented |
65 |
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return m.values(); |
66 |
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} |
67 |
< |
|
67 |
> |
|
68 |
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public boolean equals(Object o) { |
69 |
< |
rwl.readLock().lock(); try {return m.equals(o);} finally { rwl.readLock().unlock(); } |
69 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
70 |
> |
l.lock(); try {return m.equals(o);} finally { l.unlock(); } |
71 |
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} |
72 |
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public int hashCode() { |
73 |
< |
rwl.readLock().lock(); try {return m.hashCode();} finally { rwl.readLock().unlock(); } |
73 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
74 |
> |
l.lock(); try {return m.hashCode();} finally { l.unlock(); } |
75 |
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} |
76 |
|
public String toString() { |
77 |
< |
rwl.readLock().lock(); try {return m.toString();} finally { rwl.readLock().unlock(); } |
77 |
> |
ReentrantReadWriteLock.ReadLock l = rwl.readLock(); |
78 |
> |
l.lock(); try {return m.toString();} finally { l.unlock(); } |
79 |
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} |
80 |
|
|
81 |
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|
82 |
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|
83 |
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public Object put(Object key, Object value) { |
84 |
< |
rwl.writeLock().lock(); try {return m.put(key, value);} finally { rwl.writeLock().unlock(); } |
84 |
> |
ReentrantReadWriteLock.WriteLock l = rwl.writeLock(); |
85 |
> |
l.lock(); try {return m.put(key, value);} finally { l.unlock(); } |
86 |
|
} |
87 |
|
public Object remove(Object key) { |
88 |
< |
rwl.writeLock().lock(); try {return m.remove(key);} finally { rwl.writeLock().unlock(); } |
88 |
> |
ReentrantReadWriteLock.WriteLock l = rwl.writeLock(); |
89 |
> |
l.lock(); try {return m.remove(key);} finally { l.unlock(); } |
90 |
|
} |
91 |
|
public void putAll(Map map) { |
92 |
< |
rwl.writeLock().lock(); try {m.putAll(map);} finally { rwl.writeLock().unlock(); } |
92 |
> |
ReentrantReadWriteLock.WriteLock l = rwl.writeLock(); |
93 |
> |
l.lock(); try {m.putAll(map);} finally { l.unlock(); } |
94 |
|
} |
95 |
|
public void clear() { |
96 |
< |
rwl.writeLock().lock(); try {m.clear();} finally { rwl.writeLock().unlock(); } |
96 |
> |
ReentrantReadWriteLock.WriteLock l = rwl.writeLock(); |
97 |
> |
l.lock(); try {m.clear();} finally { l.unlock(); } |
98 |
|
} |
99 |
< |
|
99 |
> |
|
100 |
|
} |