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Digdag

There is a newer version: 0.10.5.1

package io.digdag.spi;

import java.time.Instant;
import java.time.ZoneId;

public interface Scheduler
{
    ZoneId getTimeZone();

    // align given time with the last time of this schedule.
    // getRunTime of returned ScheduleTime is same or after currentTime.
    ScheduleTime getFirstScheduleTime(Instant currentTime);

    // align given time with the next schedule time.
    // getTime of returned ScheduleTime is after lastScheduleTime.
    ScheduleTime nextScheduleTime(Instant lastScheduleTime);

    // align given time with the last schedule time.
    // getTime of returned ScheduleTime is before currentScheduleTime.
    ScheduleTime lastScheduleTime(Instant currentScheduleTime);
}