Package org.rocksdb

Enum Class FilterPolicyType

java.lang.Object

java.lang.Enum<FilterPolicyType>

org.rocksdb.FilterPolicyType

All Implemented Interfaces:

Serializable, Comparable<FilterPolicyType>, Constable

public enum FilterPolicyType
extends Enum<FilterPolicyType>

IndexType used in conjunction with BlockBasedTable.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
kBloomFilterPolicy	This is a user-facing policy that automatically choose between LegacyBloom and FastLocalBloom based on context at build time, including compatibility with format_version.
kRibbonFilterPolicy	This is a user-facing policy that chooses between Standard128Ribbon and FastLocalBloom based on context at build time (LSM level and other factors in extreme cases).
kUnknownFilterPolicy

Method Summary

Modifier and Type	Method	Description
Filter	createFilter(long handle, double param)
byte	getValue()	Returns the byte value of the enumerations value
static FilterPolicyType	valueOf(String name)	Returns the enum constant of this class with the specified name.
static FilterPolicyType[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

kUnknownFilterPolicy

public static final FilterPolicyType kUnknownFilterPolicy

kBloomFilterPolicy

public static final FilterPolicyType kBloomFilterPolicy

This is a user-facing policy that automatically choose between LegacyBloom and FastLocalBloom based on context at build time, including compatibility with format_version.

kRibbonFilterPolicy

public static final FilterPolicyType kRibbonFilterPolicy

This is a user-facing policy that chooses between Standard128Ribbon and FastLocalBloom based on context at build time (LSM level and other factors in extreme cases).

Method Details

values

public static FilterPolicyType[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static FilterPolicyType valueOf(String name)

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

NullPointerException - if the argument is null

createFilter

public Filter createFilter(long handle,
 double param)

getValue

public byte getValue()

Returns the byte value of the enumerations value

Returns:

byte representation