Package org.apache.hadoop.mapred.nativetask

Interface Summary

Interface	Description
CommandDispatcher	a CommandDispatcher receives Command from upstream and performs corresponding operations
DataReceiver	a DataReceiver pulls in arriving data, an example is BufferPuller
ICombineHandler	interacts with native side to support Java Combiner
INativeComparable	Any key type that is comparable at native side must implement this interface.
INativeHandler	A Handler accept input, and give output can be used to transfer command and data
NativeDataSource	NativeDataSource loads data from upstream
NativeDataTarget	NativeDataTarge sends data to downstream

Class Summary

Class	Description
Command
Constants
HadoopPlatform
NativeBatchProcessor	used to create channel, transfer data and command between Java and native
NativeMapOutputCollectorDelegator<K,V>	native map output collector wrapped in Java interface
NativeRuntime	This class stands for the native runtime It has three functions: 1.
Platform	Base class for platforms.
Platforms	this class will load in and init all platforms on classpath it is also the facade to check for key type support and other platform methods
TaskContext

Enum Summary

Enum	Description
DataChannel