1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.server.wifi.util;
18 
19 /**
20  * Class for general helper methods and objects for Wifi Framework code.
21  * @hide
22  */
23 public class GeneralUtil {
24 
25     /**
26      * Class which can be used to fetch an object out of a lambda. Fetching an object
27      * out of a local scope with HIDL is a common operation (although usually it can
28      * and should be avoided).
29      *
30      * @param <E> Inner object type.
31      */
32     public static final class Mutable<E> {
33         public E value;
34 
Mutable()35         public Mutable() {
36             value = null;
37         }
38 
Mutable(E value)39         public Mutable(E value) {
40             this.value = value;
41         }
42     }
43 }
44