Package org.apache.flink.table.runtime.operators.window.tvf.slicing

Class SliceAssigners.SlicedUnsharedSliceAssigner

java.lang.Object
org.apache.flink.table.runtime.operators.window.tvf.slicing.SliceAssigners.SlicedUnsharedSliceAssigner
All Implemented Interfaces:
Serializable, WindowAssigner, SliceAssigner, SliceUnsharedAssigner
Enclosing class:
SliceAssigners
public static final class SliceAssigners.SlicedUnsharedSliceAssigner extends Object implements SliceUnsharedAssigner
The SliceAssigner for elements have been attached slice end timestamp, but the slices are not shared, i.e. the assigned slice is equal to the final window.
See Also:

  • Field Details

  • Constructor Details

    • SlicedUnsharedSliceAssigner

      public SlicedUnsharedSliceAssigner(int sliceEndIndex, SliceAssigner innerAssigner)

  • Method Details

    • getLastWindowEnd

      public long getLastWindowEnd(long sliceEnd)
      Description copied from interface: SliceAssigner
      Returns the last window which the slice belongs to. The window and slices are both identified by the end timestamp.
      Specified by:
      getLastWindowEnd in interface SliceAssigner

    • getDescription

      public String getDescription()
      Description copied from interface: WindowAssigner
      Returns a description of this window assigner.
      Specified by:
      getDescription in interface WindowAssigner

    • assignSliceEnd

      public long assignSliceEnd(org.apache.flink.table.data.RowData element, ClockService clock)
      Description copied from interface: SliceAssigner
      Returns the end timestamp of a slice that the given element should belong.
      Specified by:
      assignSliceEnd in interface SliceAssigner
      Parameters:
      element - the element to which slice should belong to.
      clock - the service to get current processing time.

    • getWindowStart

      public long getWindowStart(long windowEnd)
      Description copied from interface: SliceAssigner
      Returns the corresponding window start timestamp of the given window end timestamp.
      Specified by:
      getWindowStart in interface SliceAssigner

    • expiredSlices

      public Iterable<Long> expiredSlices(long windowEnd)
      Description copied from interface: SliceAssigner
      Returns an iterator of slices to expire when the given window is emitted. The window and slices are both identified by the end timestamp.
      Specified by:
      expiredSlices in interface SliceAssigner
      Parameters:
      windowEnd - the end timestamp of window emitted.

    • getSliceEndInterval

      public long getSliceEndInterval()
      Description copied from interface: SliceAssigner
      Returns the interval of slice ends, i.e. the step size to advance of the slice end when a new slice assigned.
      Specified by:
      getSliceEndInterval in interface SliceAssigner

    • isEventTime

      public boolean isEventTime()
      Description copied from interface: WindowAssigner
      Returns true if elements are assigned to windows based on event time, false based on processing time.
      Specified by:
      isEventTime in interface WindowAssigner