HdfsDataOutputStream.SyncFlag (Apache Hadoop Main 3.5.0 API)
Description: declaration: package: org.apache.hadoop.hdfs.client, class: HdfsDataOutputStream, enum: SyncFlag

Package org.apache.hadoop.hdfs.client

# Enum Class HdfsDataOutputStream.SyncFlag

java.lang.Object
java.lang.Enum<HdfsDataOutputStream.SyncFlag>
org.apache.hadoop.hdfs.client.HdfsDataOutputStream.SyncFlag

All Implemented Interfaces:
  `Serializable`, `Comparable<HdfsDataOutputStream.SyncFlag>`, `Constable`

Enclosing class:
  HdfsDataOutputStream

public static enum HdfsDataOutputStream.SyncFlag extends Enum<HdfsDataOutputStream.SyncFlag>

- ## 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
  `END_BLOCK`
  Sync the data to DataNode, close the current block, and allocate a new block
  `UPDATE_LENGTH`
  When doing sync to DataNodes, also update the metadata (block length) in the NameNode.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `static HdfsDataOutputStream.SyncFlag`
  `valueOf(String name)`
  Returns the enum constant of this class with the specified name.
  `static HdfsDataOutputStream.SyncFlag[]`
  `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

  - ### UPDATE_LENGTH

    public static final HdfsDataOutputStream.SyncFlag UPDATE_LENGTH
    When doing sync to DataNodes, also update the metadata (block length) in the NameNode.

  - ### END_BLOCK

    public static final HdfsDataOutputStream.SyncFlag END_BLOCK
    Sync the data to DataNode, close the current block, and allocate a new block

- ## Method Details

  - ### values

    public static HdfsDataOutputStream.SyncFlag[] 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 HdfsDataOutputStream.SyncFlag 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