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

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

All Implemented Interfaces:

Serializable, Comparable<HdfsConstants.UpgradeAction>

Enclosing class:

org.apache.hadoop.hdfs.protocol.HdfsConstants

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

Distributed upgrade actions: 1. Get upgrade status. 2. Get detailed upgrade status. 3. Proceed with the upgrade if it is stuck, no matter what the status is.

Enum Constant Summary

DETAILED_STATUS

FORCE_PROCEED

GET_STATUS

Method Summary

static HdfsConstants.UpgradeAction	valueOf(String name) Returns the enum constant of this type with the specified name.
static HdfsConstants.UpgradeAction[]	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

GET_STATUS

public static final HdfsConstants.UpgradeAction GET_STATUS

DETAILED_STATUS

public static final HdfsConstants.UpgradeAction DETAILED_STATUS

FORCE_PROCEED

public static final HdfsConstants.UpgradeAction FORCE_PROCEED

Method Detail

values

public static HdfsConstants.UpgradeAction[] 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.UpgradeAction c : HdfsConstants.UpgradeAction.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.UpgradeAction 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