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

Class SliceAssigners.TumblingSliceAssigner

java.lang.Object

org.apache.flink.table.runtime.operators.window.tvf.slicing.SliceAssigners.TumblingSliceAssigner

All Implemented Interfaces:

Serializable, WindowAssigner, SliceAssigner, SliceUnsharedAssigner

Enclosing class:

SliceAssigners

public static final class SliceAssigners.TumblingSliceAssigner
extends Object
implements SliceUnsharedAssigner

The SliceAssigner for tumbling windows.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method	Description
long	assignSliceEnd(long timestamp)
Iterable<Long>	expiredSlices(long windowEnd)	Returns an iterator of slices to expire when the given window is emitted.
String	getDescription()	Returns a description of this window assigner.
long	getLastWindowEnd(long sliceEnd)	Returns the last window which the slice belongs to.
long	getSliceEndInterval()	Returns the interval of slice ends, i.e. the step size to advance of the slice end when a new slice assigned.
long	getWindowStart(long windowEnd)	Returns the corresponding window start timestamp of the given window end timestamp.
SliceAssigners.TumblingSliceAssigner	withOffset(Duration offset)	Creates a new SliceAssigners.TumblingSliceAssigner with a new specified offset.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.table.runtime.operators.window.tvf.slicing.SliceAssigner

assignSliceEnd

Methods inherited from interface org.apache.flink.table.runtime.operators.window.tvf.common.WindowAssigner

isEventTime

Method Detail

withOffset

public SliceAssigners.TumblingSliceAssigner withOffset(Duration offset)

Creates a new SliceAssigners.TumblingSliceAssigner with a new specified offset.

assignSliceEnd

public long assignSliceEnd(long timestamp)

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

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

getDescription

public String getDescription()

Description copied from interface: WindowAssigner

Returns a description of this window assigner.

Specified by:

getDescription in interface WindowAssigner