org.apache.flink.streaming.api.windowing.assigners

Interface SessionWindowTimeGapExtractor<T>

Type Parameters:

T - The type of elements that this SessionWindowTimeGapExtractor can extract session time gaps from.

All Superinterfaces:

Serializable

@PublicEvolving
public interface SessionWindowTimeGapExtractor<T>
extends Serializable

A SessionWindowTimeGapExtractor extracts session time gaps for Dynamic Session Window Assigners.

Method Summary

Modifier and Type	Method and Description
long	extract(T element) Extracts the session time gap.

Method Detail

extract

long extract(T element)

Extracts the session time gap.

Parameters:

element - The input element.

Returns:

The session time gap in milliseconds.