1 /*
2  * Copyright (C) 2016 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.tv.dvr.data;
18 
19 import java.util.concurrent.atomic.AtomicLong;
20 
21 /** A class which generate the ID which increases sequentially. */
22 public class IdGenerator {
23     /** ID generator for the scheduled recording. */
24     public static final IdGenerator SCHEDULED_RECORDING = new IdGenerator();
25 
26     /** ID generator for the series recording. */
27     public static final IdGenerator SERIES_RECORDING = new IdGenerator();
28 
29     private final AtomicLong mMaxId = new AtomicLong(0);
30 
31     /** Sets the new maximum ID. */
setMaxId(long maxId)32     public void setMaxId(long maxId) {
33         mMaxId.set(maxId);
34     }
35 
36     /** Returns the new ID which is greater than the existing maximum ID by 1. */
newId()37     public long newId() {
38         return mMaxId.incrementAndGet();
39     }
40 }
41