Package org.apache.hadoop.hdfs.protocol

Enum HdfsConstants.StoragePolicy

java.lang.Object

java.lang.Enum<HdfsConstants.StoragePolicy>

org.apache.hadoop.hdfs.protocol.HdfsConstants.StoragePolicy

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<HdfsConstants.StoragePolicy>

Enclosing class:

HdfsConstants

public static enum HdfsConstants.StoragePolicy
extends java.lang.Enum<HdfsConstants.StoragePolicy>

This enum wraps above Storage Policy ID and name. Recommend to use this enum instead of above static variables. For example, StoragePolicy.HOT.value() is equal to HOT_STORAGE_POLICY_ID StoragePolicy.HOT.name() is equal to HOT_STORAGE_POLICY_NAME

Enum Constant Summary

Enum Constants

Enum Constant	Description
ALL_NVDIMM
ALL_SSD
COLD
HOT
LAZY_PERSIST
ONE_SSD
PROVIDED
WARM

Method Summary

Modifier and Type	Method	Description
byte	value()
static HdfsConstants.StoragePolicy	valueOf(int value)	Returns the enum constant of this type with the specified name.
static HdfsConstants.StoragePolicy	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static HdfsConstants.StoragePolicy[]	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

PROVIDED

public static final HdfsConstants.StoragePolicy PROVIDED

COLD

public static final HdfsConstants.StoragePolicy COLD

WARM

public static final HdfsConstants.StoragePolicy WARM

HOT

public static final HdfsConstants.StoragePolicy HOT

ONE_SSD

public static final HdfsConstants.StoragePolicy ONE_SSD

ALL_SSD

public static final HdfsConstants.StoragePolicy ALL_SSD

ALL_NVDIMM

public static final HdfsConstants.StoragePolicy ALL_NVDIMM

LAZY_PERSIST

public static final HdfsConstants.StoragePolicy LAZY_PERSIST

Method Detail

values

public static HdfsConstants.StoragePolicy[] 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.StoragePolicy c : HdfsConstants.StoragePolicy.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.StoragePolicy valueOf(java.lang.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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

valueOf

public static HdfsConstants.StoragePolicy valueOf(int value)

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:

value - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

value

public byte value()