org.apache.storm.topology

Class TupleFieldTimestampExtractor

java.lang.Object

org.apache.storm.topology.TupleFieldTimestampExtractor

All Implemented Interfaces:

Serializable, TimestampExtractor

public final class TupleFieldTimestampExtractor
extends Object
implements TimestampExtractor

A TimestampExtractor that extracts timestamp from a specific field in the tuple.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
long	extractTimestamp(Tuple tuple) Return the tuple timestamp indicating the time when the event happened.
static TupleFieldTimestampExtractor	of(String fieldName)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

of

public static TupleFieldTimestampExtractor of(String fieldName)

extractTimestamp

public long extractTimestamp(Tuple tuple)

Description copied from interface: TimestampExtractor

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

Specified by:

extractTimestamp in interface TimestampExtractor

Parameters:

tuple - the tuple

Returns:

the timestamp

toString

public String toString()

Overrides:

toString in class Object