org.apache.hadoop.mapred
Class MapTask.MapOutputBuffer.Buffer

java.lang.Object
  java.io.OutputStream
      org.apache.hadoop.mapred.MapTask.MapOutputBuffer.Buffer

All Implemented Interfaces:

Closeable, Flushable

Enclosing class:

MapTask.MapOutputBuffer<K,V>

public class MapTask.MapOutputBuffer.Buffer
extends OutputStream

Constructor Summary

MapTask.MapOutputBuffer.Buffer()

Method Summary

void	write(byte[] b, int off, int len) Attempt to write a sequence of bytes to the collection buffer.
void	write(int v)

Methods inherited from class java.io.OutputStream

close, flush, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapTask.MapOutputBuffer.Buffer

public MapTask.MapOutputBuffer.Buffer()

Method Detail

write

public void write(int v)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Attempt to write a sequence of bytes to the collection buffer. This method will block if the spill thread is running and it cannot write.

Overrides:

write in class OutputStream

Throws:

MapBufferTooSmallException - if record is too large to deserialize into the collection buffer.

IOException