Package org.apache.hadoop.mapred.nativetask

package org.apache.hadoop.mapred.nativetask
  • Class
    Description
    org.apache.hadoop.mapred.nativetask.Command
     
    org.apache.hadoop.mapred.nativetask.CommandDispatcher
    a CommandDispatcher receives Command from upstream and performs corresponding operations
    org.apache.hadoop.mapred.nativetask.Constants
     
    org.apache.hadoop.mapred.nativetask.DataChannel
     
    org.apache.hadoop.mapred.nativetask.DataReceiver
    a DataReceiver pulls in arriving data, an example is BufferPuller
    org.apache.hadoop.mapred.nativetask.HadoopPlatform
     
    org.apache.hadoop.mapred.nativetask.ICombineHandler
    interacts with native side to support Java Combiner
    INativeComparable
    Any key type that is comparable at native side must implement this interface.
    org.apache.hadoop.mapred.nativetask.INativeHandler
    A Handler accept input, and give output can be used to transfer command and data
    org.apache.hadoop.mapred.nativetask.NativeBatchProcessor
    used to create channel, transfer data and command between Java and native
    org.apache.hadoop.mapred.nativetask.NativeDataSource
    NativeDataSource loads data from upstream
    org.apache.hadoop.mapred.nativetask.NativeDataTarget
    NativeDataTarge sends data to downstream
    org.apache.hadoop.mapred.nativetask.NativeMapOutputCollectorDelegator<K,V>
    native map output collector wrapped in Java interface
    org.apache.hadoop.mapred.nativetask.NativeRuntime
    This class stands for the native runtime It has three functions: 1.
    Platform
    Base class for platforms.
    org.apache.hadoop.mapred.nativetask.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
    org.apache.hadoop.mapred.nativetask.TaskContext