public class NullEvictionAlgorithm extends Object implements EvictionAlgorithm
Modifier and Type | Method and Description |
---|---|
void |
assignToRegion(Fqn fqn,
CacheSPI<?,?> cache,
EvictionAlgorithmConfig evictionAlgorithmConfig,
Configuration configuration)
Assigns the algorithm instance to a specific region.
|
boolean |
canIgnoreEvent(EvictionEvent.Type eventType)
Tests whether the algorithm would ignore certain event types on certain Fqns.
|
Class<? extends EvictionAlgorithmConfig> |
getConfigurationClass()
This is a helper so that the XML parser will be able to select and use the correct
EvictionAlgorithmConfig implementation
class corresponding to this EvictionAlgorithm. |
EvictionQueue |
getEvictionQueue()
Returns
NullEvictionQueue.INSTANCE . |
static NullEvictionAlgorithm |
getInstance() |
void |
initialize()
Invoked by the region manager when the enclosing region is initialized.
|
void |
process(BlockingQueue<EvictionEvent> queue)
Entry point for eviction algorithm.
|
void |
resetEvictionQueue()
Reset the whole eviction queue.
|
void |
setEvictionActionPolicy(EvictionActionPolicy evictionActionPolicy)
Sets the eviction action policy, so the algorithm knows what to do when a node is to be evicted.
|
public static NullEvictionAlgorithm getInstance()
public EvictionQueue getEvictionQueue()
NullEvictionQueue.INSTANCE
.getEvictionQueue
in interface EvictionAlgorithm
public void setEvictionActionPolicy(EvictionActionPolicy evictionActionPolicy)
EvictionAlgorithm
setEvictionActionPolicy
in interface EvictionAlgorithm
evictionActionPolicy
- to setpublic void assignToRegion(Fqn fqn, CacheSPI<?,?> cache, EvictionAlgorithmConfig evictionAlgorithmConfig, Configuration configuration)
EvictionAlgorithm
assignToRegion
in interface EvictionAlgorithm
fqn
- of the region to be assigned tocache
- cache referenceevictionAlgorithmConfig
- configuration for the current algorithm instance.configuration
- for the entire cache.public void process(BlockingQueue<EvictionEvent> queue) throws EvictionException
EvictionAlgorithm
EvictionEvent
passed in.process
in interface EvictionAlgorithm
queue
- to processEvictionException
public void resetEvictionQueue()
EvictionAlgorithm
resetEvictionQueue
in interface EvictionAlgorithm
public boolean canIgnoreEvent(EvictionEvent.Type eventType)
EvictionAlgorithm
canIgnoreEvent
in interface EvictionAlgorithm
eventType
- event type to test forpublic void initialize()
EvictionAlgorithm
initialize
in interface EvictionAlgorithm
public Class<? extends EvictionAlgorithmConfig> getConfigurationClass()
EvictionAlgorithm
EvictionAlgorithmConfig
implementation
class corresponding to this EvictionAlgorithm. E.g., the FIFOAlgorithm
would return FIFOAlgorithmConfig
.class.getConfigurationClass
in interface EvictionAlgorithm
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