/* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License */ package android.app.job; import java.util.List; /** * This is an API for scheduling various types of jobs against the framework that will be executed * in your application's own process. *
* See {@link android.app.job.JobInfo} for more description of the types of jobs that can be run * and how to construct them. You will construct these JobInfo objects and pass them to the * JobScheduler with {@link #schedule(JobInfo)}. When the criteria declared are met, the * system will execute this job on your application's {@link android.app.job.JobService}. * You identify which JobService is meant to execute the logic for your job when you create the * JobInfo with * {@link android.app.job.JobInfo.Builder#JobInfo.Builder(int,android.content.ComponentName)}. *
** The framework will be intelligent about when you receive your callbacks, and attempt to batch * and defer them as much as possible. Typically if you don't specify a deadline on your job, it * can be run at any moment depending on the current state of the JobScheduler's internal queue, * however it might be deferred as long as until the next time the device is connected to a power * source. *
*You do not
* instantiate this class directly; instead, retrieve it through
* {@link android.content.Context#getSystemService
* Context.getSystemService(Context.JOB_SCHEDULER_SERVICE)}.
*/
public abstract class JobScheduler {
/**
* Returned from {@link #schedule(JobInfo)} when an invalid parameter was supplied. This can occur
* if the run-time for your job is too short, or perhaps the system can't resolve the
* requisite {@link JobService} in your package.
*/
public static final int RESULT_FAILURE = 0;
/**
* Returned from {@link #schedule(JobInfo)} if this application has made too many requests for
* work over too short a time.
*/
// TODO: Determine if this is necessary.
public static final int RESULT_SUCCESS = 1;
/**
* @param job The job you wish scheduled. See
* {@link android.app.job.JobInfo.Builder JobInfo.Builder} for more detail on the sorts of jobs
* you can schedule.
* @return If >0, this int returns the jobId of the successfully scheduled job.
* Otherwise you have to compare the return value to the error codes defined in this class.
*/
public abstract int schedule(JobInfo job);
/**
* Cancel a job that is pending in the JobScheduler.
* @param jobId unique identifier for this job. Obtain this value from the jobs returned by
* {@link #getAllPendingJobs()}.
* @return
*/
public abstract void cancel(int jobId);
/**
* Cancel all jobs that have been registered with the JobScheduler by this package.
*/
public abstract void cancelAll();
/**
* @return a list of all the jobs registered by this package that have not yet been executed.
*/
public abstract List