org.redisson.api.mapreduce

Interface RMapper<KIn,VIn,KOut,VOut>

Type Parameters:

KIn - input key

VIn - input value

KOut - output key

VOut - output value

All Superinterfaces:

Serializable

public interface RMapper<KIn,VIn,KOut,VOut>
extends Serializable

Mapper task invoked during map phase of MapReduce process and launched across Redisson Nodes. Every task stores transformed result of input key/value into RCollector instance. Collected results are handled by RReducer instance once all Mapper tasks have finished.

Author:

Nikita Koksharov

Method Summary

Methods

Modifier and Type	Method and Description
void	map(KIn key, VIn value, RCollector<KOut,VOut> collector) Invoked for each Map source entry

Method Detail

map

void map(KIn key,
       VIn value,
       RCollector<KOut,VOut> collector)

Invoked for each Map source entry

Parameters:

key - - input key

value - - input value

collector - - instance shared across all Mapper tasks