Package org.infinispan.eviction

Enum EvictionStrategy

java.lang.Object

java.lang.Enum<EvictionStrategy>

org.infinispan.eviction.EvictionStrategy

All Implemented Interfaces:

Serializable, Comparable<EvictionStrategy>

public enum EvictionStrategy
extends Enum<EvictionStrategy>

Supported eviction strategies

Since:

4.0

Author:

Manik Surtani

Enum Constant Summary

Enum Constants

Enum Constant	Description
EXCEPTION	Strategy where the cache will block new entries from being written if they would exceed the configured size
FIFO	Deprecated.
LIRS	Deprecated.
LRU	Deprecated.
MANUAL	Strategy where the cache does nothing but the user is assumed to manually invoke evict method
NONE	Eviction Strategy where nothing is done by the cache and the user is probably not going to use eviction manually
REMOVE	Strategy where the cache will remove entries to make room for new ones while staying under the configured size
UNORDERED	Deprecated.

Method Summary

Modifier and Type	Method	Description
boolean	isEnabled()	Whether or not the cache will do something due to the strategy
boolean	isExceptionBased()	The cache will throw exceptions to prevent memory growth
boolean	isRemovalBased()	The cache will remove other entries to make room to limit memory growth
static EvictionStrategy	valueOf(String name)	Returns the enum constant of this type with the specified name.
static EvictionStrategy[]	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

UNORDERED

@Deprecated
public static final EvictionStrategy UNORDERED

Deprecated.

FIFO

@Deprecated
public static final EvictionStrategy FIFO

Deprecated.

LRU

@Deprecated
public static final EvictionStrategy LRU

Deprecated.

LIRS

@Deprecated
public static final EvictionStrategy LIRS

Deprecated.

NONE

public static final EvictionStrategy NONE

Eviction Strategy where nothing is done by the cache and the user is probably not going to use eviction manually

MANUAL

public static final EvictionStrategy MANUAL

Strategy where the cache does nothing but the user is assumed to manually invoke evict method

REMOVE

public static final EvictionStrategy REMOVE

Strategy where the cache will remove entries to make room for new ones while staying under the configured size

EXCEPTION

public static final EvictionStrategy EXCEPTION

Strategy where the cache will block new entries from being written if they would exceed the configured size

Method Detail

values

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

Returns:

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

valueOf

public static EvictionStrategy 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

isEnabled

public boolean isEnabled()

Whether or not the cache will do something due to the strategy

Returns:

isExceptionBased

public boolean isExceptionBased()

The cache will throw exceptions to prevent memory growth

Returns:

isRemovalBased

public boolean isRemovalBased()

The cache will remove other entries to make room to limit memory growth

Returns: