DataChannel (Apache Hadoop MapReduce NativeTask 3.5.0 API)
Description: declaration: package: org.apache.hadoop.mapred.nativetask, enum: DataChannel

Package org.apache.hadoop.mapred.nativetask

# Enum Class DataChannel

java.lang.Object
java.lang.Enum<DataChannel>
org.apache.hadoop.mapred.nativetask.DataChannel

All Implemented Interfaces:
  `Serializable`, `Comparable<DataChannel>`, `Constable`

@Private public enum DataChannel extends Enum<DataChannel>

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class java.lang.Enum

  `Enum.EnumDesc<E extends Enum<E>>`

- ## Enum Constant Summary

  Enum Constants
  Enum Constant
  Description
  `IN`
  We will only read data from this channel
  `INOUT`
  We will do both read and write for this channel
  `NONE`
  There is no data exchange
  `OUT`
  We will only write data from this channel

- ## Method Summary

  Modifier and Type
  Method
  Description
  `static DataChannel`
  `valueOf(String name)`
  Returns the enum constant of this class with the specified name.
  `static DataChannel[]`
  `values()`
  Returns an array containing the constants of this enum class, in the order they are declared.

  ### Methods inherited from class java.lang.Enum

  `clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf`

  ### Methods inherited from class java.lang.Object

  `getClass, notify, notifyAll, wait, wait, wait`

- ## Enum Constant Details

  - ### IN

    public static final DataChannel IN
    We will only read data from this channel

  - ### OUT

    public static final DataChannel OUT
    We will only write data from this channel

  - ### INOUT

    public static final DataChannel INOUT
    We will do both read and write for this channel

  - ### NONE

    public static final DataChannel NONE
    There is no data exchange

- ## Method Details

  - ### values

    public static DataChannel[] values()
    Returns an array containing the constants of this enum class, in the order they are declared.
    Returns:
      an array containing the constants of this enum class, in the order they are declared

  - ### valueOf

    public static DataChannel valueOf(String name)
    Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
    Parameters:
      `name` - the name of the enum constant to be returned.
    Returns:
      the enum constant with the specified name
    Throws:
      `IllegalArgumentException` - if this enum class has no constant with the specified name
      `NullPointerException` - if the argument is null