org.apache.hadoop.mapred.nativetask

Interface ICombineHandler

@InterfaceAudience.Private
public interface ICombineHandler

interacts with native side to support Java Combiner

Method Summary

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

Method Detail

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