org.apache.avro.mapred.tether

Interface InputProtocol

All Known Subinterfaces:

InputProtocol.Callback

public interface InputProtocol

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	InputProtocol.Callback

Field Summary

Fields

Modifier and Type	Field and Description
static Protocol	PROTOCOL

Method Summary

Methods

Modifier and Type	Method and Description
void	abort() Called to abort the task.
void	complete() Called when a task's input is complete.
void	configure(TaskType taskType, String inSchema, String outSchema) Configure the task.
void	input(ByteBuffer data, long count) Send a block of input data to a task.
void	partitions(int partitions) Set the number of map output partitions.

Field Detail

PROTOCOL

static final Protocol PROTOCOL

Method Detail

configure

void configure(TaskType taskType,
             String inSchema,
             String outSchema)

Configure the task. Sent before any other message.

Parameters:

taskType - Whether this is a map or reduce task.

inSchema - The Avro schema for task input data.

outSchema - The Avro schema for task output data.

partitions

void partitions(int partitions)

Set the number of map output partitions.

Parameters:

partitions - The number of map output partitions.

input

void input(ByteBuffer data,
         long count)

Send a block of input data to a task.

Parameters:

data - A sequence of instances of the declared schema.

count - The number of instances in this block.

abort

void abort()

Called to abort the task.

complete

void complete()

Called when a task's input is complete.