Package org.apache.flink.datastream.api.extension.eventtime.timer

Interface EventTimeManager

@Experimental public interface EventTimeManager
This class is responsible for managing stuff related to event-time/timer. For example, register and delete event timers, as well as retrieve event time. Note that methods for timer can only be used in KeyedPartitionStream.

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    currentTime()
    Get the current event time.
    void
    deleteTimer(long timestamp)
    Deletes the event-time timer with the given trigger timestamp.
    void
    registerTimer(long timestamp)
    Register an event timer for this process function.

  • Method Details

    • registerTimer

      void registerTimer(long timestamp)
      Register an event timer for this process function. The onEventTimer method will be invoked when the event time is reached.
      Parameters:
      timestamp - to trigger timer callback.

    • deleteTimer

      void deleteTimer(long timestamp)
      Deletes the event-time timer with the given trigger timestamp. This method has only an effect if such a timer was previously registered and did not already expire.
      Parameters:
      timestamp - indicates the timestamp of the timer to delete.

    • currentTime

      long currentTime()
      Get the current event time.
      Returns:
      current event time.