jdk-24/test/jdk/java/util/SequencedCollection/SimpleDeque.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * questions.
 */

import java.util.*;

/**
 * A complete Deque implementation that inherits the reversed() method
 * from SequencedCollection. Useful for testing ReverseOrderDequeView.
 * Underlying implementation provided by ArrayDeque.
 */
public class SimpleDeque<E> implements Deque<E> {

    final Deque<E> deque;

    public SimpleDeque() {
        deque = new ArrayDeque<>();
    }

    public SimpleDeque(Collection<? extends E> c) {
        deque = new ArrayDeque<>(c);
    }

    // ========== Object ==========

    public boolean equals(Object o) {
        return deque.equals(o);
    }

    public int hashCode() {
        return deque.hashCode();
    }

    public String toString() {
        return deque.toString();
    }

    // ========== Collection ==========

    public boolean add(E e) {
        return deque.add(e);
    }

    public boolean addAll(Collection<? extends E> c) {
        return deque.addAll(c);
    }

    public void clear() {
        deque.clear();
    }

    public boolean contains(Object o) {
        return deque.contains(o);
    }

    public boolean containsAll(Collection<?> c) {
        return deque.containsAll(c);
    }

    public boolean isEmpty() {
        return deque.isEmpty();
    }

    public Iterator<E> iterator() {
        return deque.iterator();
    }

    public boolean remove(Object o) {
        return deque.remove(o);
    }

    public boolean removeAll(Collection<?> c) {
        return deque.removeAll(c);
    }

    public boolean retainAll(Collection<?> c) {
        return deque.retainAll(c);
    }

    public int size() {
        return deque.size();
    }

    public Object[] toArray() {
        return deque.toArray();
    }

    public <T> T[] toArray(T[] a) {
        return deque.toArray(a);
    }

    // ========== Deque ==========

    public void addFirst(E e) {
        deque.addFirst(e);
    }

    public void addLast(E e) {
        deque.addLast(e);
    }

    public boolean offerFirst(E e) {
        return deque.offerFirst(e);
    }

    public boolean offerLast(E e) {
        return deque.offerLast(e);
    }

    public E removeFirst() {
        return deque.removeFirst();
    }

    public E removeLast() {
        return deque.removeLast();
    }

    public E pollFirst() {
        return deque.pollFirst();
    }

    public E pollLast() {
        return deque.pollLast();
    }

    public E getFirst() {
        return deque.getFirst();
    }

    public E getLast() {
        return deque.getLast();
    }

    public E peekFirst() {
        return deque.peekFirst();
    }

    public E peekLast() {
        return deque.peekLast();
    }

    public boolean removeFirstOccurrence(Object o) {
        return deque.removeFirstOccurrence(o);
    }

    public boolean removeLastOccurrence(Object o) {
        return deque.removeLastOccurrence(o);
    }

    public boolean offer(E e) {
        return deque.offer(e);
    }

    public E remove() {
        return deque.remove();
    }

    public E poll() {
        return deque.poll();
    }

    public E element() {
        return deque.element();
    }

    public E peek() {
        return deque.peek();
    }

    public void push(E e) {
        deque.push(e);
    }

    public E pop() {
        return deque.pop();
    }

    public Iterator<E> descendingIterator() {
        return deque.descendingIterator();
    }
}