1 /*
2  * Copyright 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 package androidx.work
17 
18 /**
19  * An enumeration of backoff policies when retrying work. These policies are used when you have a
20  * return [ListenableWorker.Result.retry] from a worker to determine the correct backoff time.
21  * Backoff policies are set in [WorkRequest.Builder.setBackoffCriteria] or one of its variants.
22  */
23 enum class BackoffPolicy {
24     /** Used to indicate that [WorkManager] should increase the backoff time exponentially */
25     EXPONENTIAL,
26 
27     /** Used to indicate that [WorkManager] should increase the backoff time linearly */
28     LINEAR
29 }
30