Package org.infinispan.eviction.impl

Class ActivationManagerImpl

java.lang.Object

org.infinispan.eviction.impl.ActivationManagerImpl

All Implemented Interfaces:

ActivationManager, PersistenceManager.StoreChangeListener

@MBean(objectName="Activation",
       description="Component that handles activating entries that have been passivated to a CacheStore by loading them into memory.")
public class ActivationManagerImpl
extends Object
implements ActivationManager, PersistenceManager.StoreChangeListener

Concrete implementation of activation logic manager.

Since:

5.2

Author:

Galder Zamarreño

Constructor Summary

Constructors

Constructor	Description
ActivationManagerImpl()

Method Summary

Modifier and Type	Method	Description
CompletionStage<Void>	activateAsync(Object key, int segment)	Activates an entry, effectively removing it from the underlying persistence store.
long	getActivationCount()	Get number of activations executed.
String	getActivations()
long	getPendingActivationCount()
boolean	getStatisticsEnabled()
void	resetStatistics()
void	setStatisticsEnabled(boolean statisticsEnabled)
void	start()
void	stop()
void	storeChanged(PersistenceStatus persistenceStatus)	Notifies when a store was added or removed dynamically.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ActivationManagerImpl

public ActivationManagerImpl()

Method Details

start

public void start()

stop

public void stop()

storeChanged

public void storeChanged(PersistenceStatus persistenceStatus)

Description copied from interface: PersistenceManager.StoreChangeListener

Notifies when a store was added or removed dynamically. This method is always invoked with mutual access to any other method in PersistenceManager. Implementations must only ensure visibility or atomicity of their own variables and operations.

Specified by:

storeChanged in interface PersistenceManager.StoreChangeListener

activateAsync

public CompletionStage<Void> activateAsync(Object key,
 int segment)

Description copied from interface: ActivationManager

Activates an entry, effectively removing it from the underlying persistence store. Note that the removal may be done asynchronously and when the returned Stage is complete the removal is also completed.

Specified by:

activateAsync in interface ActivationManager

Parameters:

key - key to activate

segment - segment the key maps to

Returns:

stage that when complete the entry has been activated

getActivationCount

public long getActivationCount()

Description copied from interface: ActivationManager

Get number of activations executed.

Specified by:

getActivationCount in interface ActivationManager

Returns:

A long representing the number of activations

getActivations

@ManagedAttribute(description="Number of activation events",
                  displayName="Number of cache entries activated",
                  measurementType=TRENDSUP)
public String getActivations()

resetStatistics

@ManagedOperation(description="Resets statistics gathered by this component",
                  displayName="Reset statistics")
public void resetStatistics()

getStatisticsEnabled

@ManagedAttribute(description="Enables or disables the gathering of statistics by this component",
                  displayName="Statistics enabled",
                  writable=true)
public boolean getStatisticsEnabled()

setStatisticsEnabled

public void setStatisticsEnabled(boolean statisticsEnabled)

getPendingActivationCount

public long getPendingActivationCount()

Specified by:

getPendingActivationCount in interface ActivationManager