org.apache.storm.windowing

Interface TimestampExtractor

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

TupleFieldTimestampExtractor

public interface TimestampExtractor
extends java.io.Serializable

Interface to be implemented for extracting timestamp from a tuple.

Method Summary

Modifier and Type	Method and Description
long	extractTimestamp(Tuple tuple) Return the tuple timestamp indicating the time when the event happened.

Method Detail

extractTimestamp

long extractTimestamp(Tuple tuple)

Return the tuple timestamp indicating the time when the event happened.

Parameters:

tuple - the tuple

Returns:

the timestamp