liuzhengyang

/**
 * Description: Concurrent Stack
 *
 * @author liuzhengyang
 * @version 1.0
 * @since 2016-04-07
 */
public class ConcurrentStack<E> {
	private AtomicReference<Node<E>> top = new AtomicReference<>();

liuzhengyang

interface Computable<A, V> {
	V compute(A a);
}
public class Memorizer<A, V> implements Computable<A, V> {
	private final ConcurrentMap<A, Future<V>> cache = new ConcurrentHashMap<>();

	private final Computable<A, V> computable;

	public Memorizer(Computable<A, V> computable) {
		this.computable = computable;