ICombineHandler (Apache Hadoop MapReduce NativeTask 3.5.0 API)
Description: declaration: package: org.apache.hadoop.mapred.nativetask, interface: ICombineHandler

Package org.apache.hadoop.mapred.nativetask

# Interface ICombineHandler

@Private public interface ICombineHandler
interacts with native side to support Java Combiner

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `close()`
  close handlers, buffer pullers and pushers
  `void`
  `combine()`
  run combiner
  `long`
  `getId()`

- ## Method Details

  - ### combine

    void combine() throws IOException
    run combiner
    Throws:
      `IOException`

  - ### getId

    long getId()
    Returns:
      id of this handler

  - ### close

    void close() throws IOException
    close handlers, buffer pullers and pushers
    Throws:
      `IOException`