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, AutoCloseable

Enclosing class:

MapTask.MapOutputBuffer<K,V>

public class MapTask.MapOutputBuffer.Buffer
extends OutputStream

Constructor Summary

Constructors

Constructor and Description
MapTask.MapOutputBuffer.Buffer()

Method Summary

Methods

Modifier and Type	Method and Description
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