org.apache.flink.table.api

Class OverWindowPartitionedOrdered

java.lang.Object

org.apache.flink.table.api.OverWindowPartitionedOrdered

@PublicEvolving
public final class OverWindowPartitionedOrdered
extends Object

Partially defined over window with (optional) partitioning and order.

Method Summary

Modifier and Type	Method and Description
OverWindow	as(Expression alias) Assigns an alias for this window that the following select() clause can refer to.
OverWindow	as(String alias) Assigns an alias for this window that the following select() clause can refer to.
OverWindowPartitionedOrderedPreceding	preceding(Expression preceding) Set the preceding offset (based on time or row-count intervals) for over window.

Methods inherited from class java.lang.Object

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

Method Detail

preceding

public OverWindowPartitionedOrderedPreceding preceding(Expression preceding)

Set the preceding offset (based on time or row-count intervals) for over window.

Parameters:

preceding - preceding offset relative to the current row.

Returns:

an over window with defined preceding

as

public OverWindow as(String alias)

Assigns an alias for this window that the following select() clause can refer to.

Parameters:

alias - alias for this over window

Returns:

the fully defined over window

as

public OverWindow as(Expression alias)

Assigns an alias for this window that the following select() clause can refer to.

Parameters:

alias - alias for this over window

Returns:

the fully defined over window