Package 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

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

  • Method Details

    • 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