Package org.apache.geode.cache

Class EvictionAlgorithm

java.lang.Object

javax.print.attribute.EnumSyntax

org.apache.geode.cache.EvictionAlgorithm

All Implemented Interfaces:

Serializable, Cloneable

@Immutable
public final class EvictionAlgorithm
extends EnumSyntax
implements Serializable

The algorithm used to determine when to perform an EvictionAction

Since:

GemFire 5.0

See Also:

• EvictionAction
• EvictionAttributesImpl
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final EvictionAlgorithm	LIFO_ENTRY	Deprecated. For internal use only.
static final EvictionAlgorithm	LIFO_MEMORY	Deprecated. For internal use only.
static final EvictionAlgorithm	LRU_ENTRY	An algorithm that considers the number of Entries in the Region before invoking its EvictionAction
static final EvictionAlgorithm	LRU_HEAP	An algorithm that considers the JVM heap size before invoking its EvictionAction
static final EvictionAlgorithm	LRU_MEMORY	An algorithm that considers the amount of bytes consumed by the Region before invoking its EvictionAction
static final EvictionAlgorithm	NONE	The canonical EvictionAction that represents no eviction action

Method Summary

Modifier and Type	Method	Description
protected EnumSyntax[]	getEnumValueTable()
protected String[]	getStringTable()
boolean	isLIFO()	Deprecated. For internal use only.
boolean	isLRU()	returns true if this object uses a least-recently-used algorithm
boolean	isLRUEntry()
boolean	isLRUHeap()
boolean	isLRUMemory()
boolean	isNone()
static EvictionAlgorithm	parseAction(String s)
static EvictionAlgorithm	parseValue(int v)	Returns the eviction algorithm that corresponds to the given parameter.

Methods inherited from class javax.print.attribute.EnumSyntax

clone, getOffset, getValue, hashCode, readResolve, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

NONE

@Immutable
public static final EvictionAlgorithm NONE

The canonical EvictionAction that represents no eviction action

LRU_ENTRY

@Immutable
public static final EvictionAlgorithm LRU_ENTRY

An algorithm that considers the number of Entries in the Region before invoking its EvictionAction

LRU_HEAP

@Immutable
public static final EvictionAlgorithm LRU_HEAP

An algorithm that considers the JVM heap size before invoking its EvictionAction

LRU_MEMORY

@Immutable
public static final EvictionAlgorithm LRU_MEMORY

An algorithm that considers the amount of bytes consumed by the Region before invoking its EvictionAction

LIFO_ENTRY

@Deprecated
@Immutable
public static final EvictionAlgorithm LIFO_ENTRY

Deprecated.

For internal use only.

An algorithm that considers the number of Entries in the Region before invoking its EvictionAction

LIFO_MEMORY

@Deprecated
@Immutable
public static final EvictionAlgorithm LIFO_MEMORY

Deprecated.

For internal use only.

An algorithm that considers the amount of bytes consumed by the Region before invoking its EvictionAction

Method Details

getStringTable

protected String[] getStringTable()

Overrides:

getStringTable in class EnumSyntax

getEnumValueTable

protected EnumSyntax[] getEnumValueTable()

Overrides:

getEnumValueTable in class EnumSyntax

parseValue

public static EvictionAlgorithm parseValue(int v)

Returns the eviction algorithm that corresponds to the given parameter. Returns null if no algorithm corresponds.

Parameters:

v - the parameter representation of an eviction algorithm

Returns:

the eviction algorithm that corresponds to the given parameter

Since:

GemFire 6.5

parseAction

public static EvictionAlgorithm parseAction(String s)

isLRUEntry

public boolean isLRUEntry()

isLRUMemory

public boolean isLRUMemory()

isLRUHeap

public boolean isLRUHeap()

isLRU

public boolean isLRU()

returns true if this object uses a least-recently-used algorithm

Returns:

whether this object uses a least-recently-used algorithm

isNone

public boolean isNone()

isLIFO

@Deprecated
public boolean isLIFO()

Deprecated.

For internal use only.

Returns:

whether this object uses a last-in-first-out algorithm