org.apache.hadoop.hdfs.protocol
Enum HdfsConstants.RollingUpgradeAction

java.lang.Object
  java.lang.Enum<HdfsConstants.RollingUpgradeAction>
      org.apache.hadoop.hdfs.protocol.HdfsConstants.RollingUpgradeAction

All Implemented Interfaces:

Serializable, Comparable<HdfsConstants.RollingUpgradeAction>

Enclosing class:

org.apache.hadoop.hdfs.protocol.HdfsConstants

public static enum HdfsConstants.RollingUpgradeAction
extends Enum<HdfsConstants.RollingUpgradeAction>

Enum Constant Summary

FINALIZE

PREPARE

QUERY

Method Summary

static HdfsConstants.RollingUpgradeAction	fromString(String s) Covert the given String to a RollingUpgradeAction.
static HdfsConstants.RollingUpgradeAction	valueOf(String name) Returns the enum constant of this type with the specified name.
static HdfsConstants.RollingUpgradeAction[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

QUERY

public static final HdfsConstants.RollingUpgradeAction QUERY

PREPARE

public static final HdfsConstants.RollingUpgradeAction PREPARE

FINALIZE

public static final HdfsConstants.RollingUpgradeAction FINALIZE

Method Detail

values

public static HdfsConstants.RollingUpgradeAction[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (HdfsConstants.RollingUpgradeAction c : HdfsConstants.RollingUpgradeAction.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static HdfsConstants.RollingUpgradeAction valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name

NullPointerException - if the argument is null

fromString

public static HdfsConstants.RollingUpgradeAction fromString(String s)

Covert the given String to a RollingUpgradeAction.