Package org.redisson.api.mapreduce

Interface RMapReduceExecutor<VIn,​KOut,​VOut>

  • Type Parameters:
    VIn - input value
    KOut - output key
    VOut - output value
    All Known Subinterfaces:
    RCollectionMapReduce<VIn,​KOut,​VOut>, RMapReduce<KIn,​VIn,​KOut,​VOut>
    All Known Implementing Classes:
    RedissonCollectionMapReduce, RedissonMapReduce
    public interface RMapReduceExecutor<VIn,​KOut,​VOut>
    Contains methods for MapReduce process execution.
    Author:
    Nikita Koksharov

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      Map<KOut,​VOut> execute()
      Executes MapReduce process across Redisson Nodes
      void execute​(String resultMapName)
      Executes MapReduce process across Redisson Nodes and stores result in map with resultMapName
      <R> R execute​(RCollator<KOut,​VOut,​R> collator)
      Executes MapReduce process across Redisson Nodes and collides result using defined collator
      RFuture<Map<KOut,​VOut>> executeAsync()
      Executes MapReduce process across Redisson Nodes in asynchronous mode
      RFuture<Void> executeAsync​(String resultMapName)
      Executes MapReduce process across Redisson Nodes in asynchronous mode and stores result in map with resultMapName
      <R> RFuture<R> executeAsync​(RCollator<KOut,​VOut,​R> collator)
      Executes MapReduce process across Redisson Nodes in asynchronous mode and collides result using defined collator

    • Method Detail

      • execute

        Map<KOut,​VOut> execute()
        Executes MapReduce process across Redisson Nodes
        Returns:
        map containing reduced keys and values

      • executeAsync

        RFuture<Map<KOut,​VOut>> executeAsync()
        Executes MapReduce process across Redisson Nodes in asynchronous mode
        Returns:
        map containing reduced keys and values

      • execute

        void execute​(String resultMapName)
        Executes MapReduce process across Redisson Nodes and stores result in map with resultMapName
        Parameters:
        resultMapName - - destination map name

      • executeAsync

        RFuture<Void> executeAsync​(String resultMapName)
        Executes MapReduce process across Redisson Nodes in asynchronous mode and stores result in map with resultMapName
        Parameters:
        resultMapName - - destination map name
        Returns:
        void

      • execute

        <R> R execute​(RCollator<KOut,​VOut,​R> collator)
        Executes MapReduce process across Redisson Nodes and collides result using defined collator
        Type Parameters:
        R - result type
        Parameters:
        collator - applied to result
        Returns:
        collated result

      • executeAsync

        <R> RFuture<R> executeAsync​(RCollator<KOut,​VOut,​R> collator)
        Executes MapReduce process across Redisson Nodes in asynchronous mode and collides result using defined collator
        Type Parameters:
        R - result type
        Parameters:
        collator - applied to result
        Returns:
        collated result