/**
* 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 org.apache.aurora.scheduler.cron;
import com.google.common.base.Optional;
import org.apache.aurora.scheduler.storage.entities.IJobKey;
/**
* An execution manager that executes work on a cron schedule.
*/
public interface CronScheduler {
/**
* Gets the cron schedule associated with a scheduling key.
*
* @param key Key previously returned from {@link #schedule(CrontabEntry, Runnable)}.
* @return The task's cron schedule, if a matching task was found.
*/
Optional<CrontabEntry> getSchedule(IJobKey key);
}