2 * Copyright (C) 2014 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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
17 package android.app.job;
19 import java.util.List;
21 import android.content.Context;
24 * This is an API for scheduling various types of jobs against the framework that will be executed
25 * in your application's own process.
27 * See {@link android.app.job.JobInfo} for more description of the types of jobs that can be run
28 * and how to construct them. You will construct these JobInfo objects and pass them to the
29 * JobScheduler with {@link #schedule(JobInfo)}. When the criteria declared are met, the
30 * system will execute this job on your application's {@link android.app.job.JobService}.
31 * You identify which JobService is meant to execute the logic for your job when you create the
32 * JobInfo with {@link android.app.job.JobInfo.Builder#Builder(int, android.content.ComponentName)}.
35 * The framework will be intelligent about when you receive your callbacks, and attempt to batch
36 * and defer them as much as possible. Typically if you don't specify a deadline on your job, it
37 * can be run at any moment depending on the current state of the JobScheduler's internal queue,
38 * however it might be deferred as long as until the next time the device is connected to a power
42 * instantiate this class directly; instead, retrieve it through
43 * {@link android.content.Context#getSystemService
44 * Context.getSystemService(Context.JOB_SCHEDULER_SERVICE)}.
46 public abstract class JobScheduler {
48 * Returned from {@link #schedule(JobInfo)} when an invalid parameter was supplied. This can occur
49 * if the run-time for your job is too short, or perhaps the system can't resolve the
50 * requisite {@link JobService} in your package.
52 public static final int RESULT_FAILURE = 0;
54 * Returned from {@link #schedule(JobInfo)} if this application has made too many requests for
55 * work over too short a time.
57 // TODO: Determine if this is necessary.
58 public static final int RESULT_SUCCESS = 1;
61 * @param job The job you wish scheduled. See
62 * {@link android.app.job.JobInfo.Builder JobInfo.Builder} for more detail on the sorts of jobs
64 * @return If >0, this int returns the jobId of the successfully scheduled job.
65 * Otherwise you have to compare the return value to the error codes defined in this class.
67 public abstract int schedule(JobInfo job);
70 * Cancel a job that is pending in the JobScheduler.
71 * @param jobId unique identifier for this job. Obtain this value from the jobs returned by
72 * {@link #getAllPendingJobs()}.
75 public abstract void cancel(int jobId);
78 * Cancel all jobs that have been registered with the JobScheduler by this package.
80 public abstract void cancelAll();
83 * @return a list of all the jobs registered by this package that have not yet been executed.
85 public abstract List<JobInfo> getAllPendingJobs();