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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.util.concurrent.locks.*; |
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|
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/** |
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* This is an incomplete implementation of a wrapper class |
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* that places read-write locks around unsynchronized Maps. |
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* Exists as a sample input for MapLoops test. |
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*/ |
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public class SMap implements Map { |
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private final Map m; |
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public SMap(Map m) { |
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if (m == null) |
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throw new NullPointerException(); |
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this.m = m; |
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} |
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|
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public SMap() { |
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this(new TreeMap()); // use TreeMap by default |
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} |
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|
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public synchronized int size() { |
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return m.size(); |
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} |
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public synchronized boolean isEmpty() { |
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return m.isEmpty(); |
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} |
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|
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public synchronized Object get(Object key) { |
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return m.get(key); |
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} |
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|
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public synchronized boolean containsKey(Object key) { |
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return m.containsKey(key); |
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} |
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public synchronized boolean containsValue(Object value) { |
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return m.containsValue(value); |
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} |
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|
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public synchronized Set keySet() { // Not implemented |
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return m.keySet(); |
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} |
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|
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public synchronized Set entrySet() { // Not implemented |
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return m.entrySet(); |
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} |
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|
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public synchronized Collection values() { // Not implemented |
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return m.values(); |
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} |
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|
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public synchronized boolean equals(Object o) { |
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return m.equals(o); |
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} |
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public synchronized int hashCode() { |
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return m.hashCode(); |
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} |
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public synchronized String toString() { |
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return m.toString(); |
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} |
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|
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public synchronized Object put(Object key, Object value) { |
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return m.put(key, value); |
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} |
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public synchronized Object remove(Object key) { |
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return m.remove(key); |
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} |
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public synchronized void putAll(Map map) { |
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m.putAll(map); |
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} |
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public synchronized void clear() { |
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m.clear(); |
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} |
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|
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} |
