Package org.apache.storm.redis.trident

Class WordCountStoreMapper

java.lang.Object

org.apache.storm.redis.trident.WordCountStoreMapper

All Implemented Interfaces:

Serializable, RedisMapper, RedisStoreMapper, TupleMapper

public class WordCountStoreMapper
extends Object
implements RedisStoreMapper

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
WordCountStoreMapper()

Method Summary

Modifier and Type	Method	Description
RedisDataTypeDescription	getDataTypeDescription()	Returns descriptor which defines data type.
String	getKeyFromTuple(ITuple tuple)	Extracts key from tuple.
String	getValueFromTuple(ITuple tuple)	Extracts value from tuple.

Methods inherited from class java.lang.Object

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

Constructor Details

WordCountStoreMapper

public WordCountStoreMapper()

Method Details

getDataTypeDescription

public RedisDataTypeDescription getDataTypeDescription()

Description copied from interface: RedisMapper

Returns descriptor which defines data type.

Specified by:

getDataTypeDescription in interface RedisMapper

Returns:

data type descriptor

getKeyFromTuple

public String getKeyFromTuple(ITuple tuple)

Description copied from interface: TupleMapper

Extracts key from tuple.

Specified by:

getKeyFromTuple in interface TupleMapper

Parameters:

tuple - source tuple

Returns:

key

getValueFromTuple

public String getValueFromTuple(ITuple tuple)

Description copied from interface: TupleMapper

Extracts value from tuple.

Specified by:

getValueFromTuple in interface TupleMapper

Parameters:

tuple - source tuple

Returns:

value