alluxio.client.file.cache.store

Enum PageStoreType

java.lang.Object

java.lang.Enum<PageStoreType>

alluxio.client.file.cache.store.PageStoreType

All Implemented Interfaces:

Serializable, Comparable<PageStoreType>

public enum PageStoreType
extends Enum<PageStoreType>

This represents the different page store implementations that can be instantiated.

Enum Constant Summary

Enum Constants

Enum Constant and Description
LOCAL A simple store with pages on the local filesystem.
MEM A simple store with pages on the memory (HeapByteBuffer).
ROCKS A store that utilizes RocksDB to store and retrieve pages.

Method Summary

Modifier and Type	Method and Description
double	getOverheadRatio()
static PageStoreType	valueOf(String name) Returns the enum constant of this type with the specified name.
static PageStoreType[]	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

LOCAL

public static final PageStoreType LOCAL

A simple store with pages on the local filesystem.

ROCKS

public static final PageStoreType ROCKS

A store that utilizes RocksDB to store and retrieve pages.

MEM

public static final PageStoreType MEM

A simple store with pages on the memory (HeapByteBuffer).

Method Detail

values

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

Returns:

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

valueOf

public static PageStoreType 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

getOverheadRatio

public double getOverheadRatio()

Returns:

overhead ratio