org.apache.storm.redis.common.mapper

Interface TupleMapper

All Superinterfaces:

Serializable

All Known Subinterfaces:

RedisFilterMapper, RedisLookupMapper, RedisStoreMapper

All Known Implementing Classes:

WordCountLookupMapper, WordCountStoreMapper

public interface TupleMapper
extends Serializable

TupleMapper defines how to extract key and value from tuple for Redis.

Method Summary

Modifier and Type	Method and Description
String	getKeyFromTuple(ITuple tuple) Extracts key from tuple.
String	getValueFromTuple(ITuple tuple) Extracts value from tuple.

Method Detail

getKeyFromTuple

String getKeyFromTuple(ITuple tuple)

Extracts key from tuple.

Parameters:

tuple - source tuple

Returns:

key

getValueFromTuple

String getValueFromTuple(ITuple tuple)

Extracts value from tuple.

Parameters:

tuple - source tuple

Returns:

value