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package gtPlusPlus.api.objects.data;
import java.io.Serializable;
import java.util.AbstractSet;
import java.util.Iterator;
import java.util.concurrent.ConcurrentMap;
public abstract class ConcurrentSet<E> extends AbstractSet<E> implements Serializable {
private static final long serialVersionUID = -6761513279741915432L;
private final ConcurrentMap<Integer, E> mInternalMap;
private int mInternalID = 0;
/**
* Creates a new instance which wraps the specified {@code map}.
*/
public ConcurrentSet(ConcurrentMap<Integer, E> aMap) {
mInternalMap = aMap;
}
@Override
public int size() {
return mInternalMap.size();
}
@Override
public boolean contains(Object o) {
return mInternalMap.containsKey(o);
}
@Override
public boolean add(E o) {
return mInternalMap.putIfAbsent(mInternalID++, o) == null;
}
@Override
public boolean remove(Object o) {
return mInternalMap.remove(o) != null;
}
@Override
public void clear() {
this.mInternalID = 0;
mInternalMap.clear();
}
@Override
public Iterator<E> iterator() {
return mInternalMap.values().iterator();
}
}
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