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