1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation. Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle in the LICENSE file that accompanied this code.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25 /*
26 * This file is available under and governed by the GNU General Public
27 * License version 2 only, as published by the Free Software Foundation.
28 * However, the following notice accompanied the original version of this
29 * file:
30 *
31 * Written by Doug Lea with assistance from members of JCP JSR-166
32 * Expert Group and released to the public domain, as explained at
33 * http://creativecommons.org/publicdomain/zero/1.0/
34 */
35
36
37 package java.util;
38
39
40 @SuppressWarnings({"unchecked", "deprecation", "all"})
41 public interface Queue<E> extends java.util.Collection<E> {
42
add(@ibcore.util.NullFromTypeParam E e)43 public boolean add(@libcore.util.NullFromTypeParam E e);
44
offer(@ibcore.util.NullFromTypeParam E e)45 public boolean offer(@libcore.util.NullFromTypeParam E e);
46
remove()47 @libcore.util.NullFromTypeParam public E remove();
48
poll()49 @libcore.util.Nullable public E poll();
50
element()51 @libcore.util.NullFromTypeParam public E element();
52
peek()53 @libcore.util.Nullable public E peek();
54 }
55