app/src/main/java/com/wireguard/util/KeyedList.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

/*
 * Copyright © 2018 Samuel Holland <samuel@sholland.org>
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

package com.wireguard.util;

import java.util.Collection;
import java.util.List;

/**
 * A list containing elements that can be looked up by key. A {@code KeyedList} cannot contain
 * {@code null} elements.
 */

public interface KeyedList<K, E extends Keyed<? extends K>> extends List<E> {
    boolean containsAllKeys(Collection<K> keys);

    boolean containsKey(K key);

    E get(K key);

    E getLast(K key);

    int indexOfKey(K key);

    int lastIndexOfKey(K key);
}