org.apache.flink.table.api

Class Tumble

java.lang.Object

org.apache.flink.table.api.Tumble

@PublicEvolving
public final class Tumble
extends Object

Helper class for creating a tumbling window. Tumbling windows are consecutive, non-overlapping windows of a specified fixed length. For example, a tumbling window of 5 minutes size groups elements in 5 minutes intervals.

Java Example:

 Tumble.over("10.minutes").on("rowtime").as("w")
 

Scala Example:

 Tumble over 5.minutes on 'rowtime as 'w
 

Constructor Summary

Constructors

Constructor and Description
Tumble()

Method Summary

Modifier and Type	Method and Description
static TumbleWithSize	over(Expression size) Creates a tumbling window.

Methods inherited from class java.lang.Object

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

Constructor Detail

Tumble

public Tumble()

Method Detail

over

public static TumbleWithSize over(Expression size)

Creates a tumbling window. Tumbling windows are fixed-size, consecutive, non-overlapping windows of a specified fixed length. For example, a tumbling window of 5 minutes size groups elements in 5 minutes intervals.

Parameters:

size - the size of the window as time or row-count interval.

Returns:

a partially defined tumbling window