alluxio.client

Enum AlluxioStorageType

java.lang.Object

java.lang.Enum<AlluxioStorageType>

alluxio.client.AlluxioStorageType

All Implemented Interfaces:

Serializable, Comparable<AlluxioStorageType>

@ThreadSafe
public enum AlluxioStorageType
extends Enum<AlluxioStorageType>

Specifies the type of data interaction with Alluxio.

• For a write operation, this determines whether the data will be written into Alluxio storage. Metadata will always be updated in Alluxio space.
• For a read operation, this determines whether fully read blocks will be stored in Alluxio storage.

Enum Constant Summary

Enum Constants

Enum Constant and Description
NO_STORE Do not put data to Alluxio.
PROMOTE Same as STORE for writes.
STORE Put the data reading or writing in Alluxio storage.

Method Summary

Modifier and Type	Method and Description
boolean	isPromote()
boolean	isStore()
static AlluxioStorageType	valueOf(String name) Returns the enum constant of this type with the specified name.
static AlluxioStorageType[]	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

STORE

public static final AlluxioStorageType STORE

Put the data reading or writing in Alluxio storage.

NO_STORE

public static final AlluxioStorageType NO_STORE

Do not put data to Alluxio.

PROMOTE

public static final AlluxioStorageType PROMOTE

Same as STORE for writes. Will move the data to highest tier before access for reads.

Method Detail

values

public static AlluxioStorageType[] 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 (AlluxioStorageType c : AlluxioStorageType.values())
    System.out.println(c);

Returns:

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

valueOf

public static AlluxioStorageType 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

isStore

public boolean isStore()

Returns:

whether the data should be put in Alluxio storage

isPromote

public boolean isPromote()

Returns:

whether the data should be promoted to the highest tier