com.sleepycat.je.evictor

Class PrivateEvictor

java.lang.Object

com.sleepycat.je.utilint.DaemonThread

com.sleepycat.je.evictor.Evictor

com.sleepycat.je.evictor.PrivateEvictor

All Implemented Interfaces:

DaemonRunner, java.lang.Runnable

public class PrivateEvictor
extends Evictor

The standard Evictor that operates on the INList for a single environment. A single iterator over the INList is used to implement getNextIN.

Nested Class Summary

Nested classes/interfaces inherited from class com.sleepycat.je.evictor.Evictor

Evictor.EvictProfile

Field Summary

Fields inherited from class com.sleepycat.je.evictor.Evictor

evictProfile, SOURCE_CRITICAL, SOURCE_DAEMON, SOURCE_MANUAL

Fields inherited from class com.sleepycat.je.utilint.DaemonThread

name, nWakeupRequests, stifleExceptionChatter

Constructor Summary

Constructors

Constructor and Description
PrivateEvictor(EnvironmentImpl envImpl, java.lang.String name)

Method Summary

Methods

Modifier and Type	Method and Description
void	addEnvironment(EnvironmentImpl envImpl) Only supported by SharedEvictor.
boolean	checkEnvs(java.util.Set<EnvironmentImpl> envs) Only supported by SharedEvictor.
void	clearEnv() Standard daemon method to set envImpl to null.
(package private) java.util.logging.Logger	getLogger() Standard logging is supported by PrivateEvictor.
(package private) int	getMaxINsPerBatch() Returns the simple INList size.
(package private) IN	getNextIN() Returns the next IN, wrapping if necessary.
(package private) java.util.Iterator<IN>	getScanIterator()
void	loadStats(StatsConfig config, EnvironmentStats stat) Load stats.
void	noteINListChange(int nINs) Do nothing.
void	onWakeup() Called whenever the daemon thread wakes up from a sleep.
void	removeEnvironment(EnvironmentImpl envImpl) Only supported by SharedEvictor.
(package private) void	setScanIterator(java.util.Iterator<IN> iter)
(package private) long	startBatch() Initializes the iterator, and performs UtilizationTracker eviction once per batch.

Methods inherited from class com.sleepycat.je.evictor.Evictor

alert, doCriticalEviction, doEvict, evictBatch, nDeadlockRetries, normalizeLevel, setRunnableHook

Methods inherited from class com.sleepycat.je.utilint.DaemonThread

checkErrorListener, getExceptionListener, getNWakeupRequests, getThread, isPaused, isRunning, isShutdownRequested, requestShutdown, run, runOrPause, setExceptionListener, shutdown, toString, wakeup

Methods inherited from class java.lang.Object

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

Constructor Detail

PrivateEvictor

public PrivateEvictor(EnvironmentImpl envImpl,
              java.lang.String name)
               throws DatabaseException

Throws:

DatabaseException

Method Detail

loadStats

public void loadStats(StatsConfig config,
             EnvironmentStats stat)
               throws DatabaseException

Description copied from class: Evictor

Load stats.

Overrides:

loadStats in class Evictor

Throws:

DatabaseException

onWakeup

public void onWakeup()
              throws DatabaseException

Description copied from class: Evictor

Called whenever the daemon thread wakes up from a sleep.

Overrides:

onWakeup in class Evictor

Throws:

DatabaseException

clearEnv

public void clearEnv()

Standard daemon method to set envImpl to null.

Specified by:

clearEnv in class Evictor

noteINListChange

public void noteINListChange(int nINs)

Do nothing.

Specified by:

noteINListChange in class Evictor

addEnvironment

public void addEnvironment(EnvironmentImpl envImpl)

Only supported by SharedEvictor.

Specified by:

addEnvironment in class Evictor

removeEnvironment

public void removeEnvironment(EnvironmentImpl envImpl)

Only supported by SharedEvictor.

Specified by:

removeEnvironment in class Evictor

checkEnvs

public boolean checkEnvs(java.util.Set<EnvironmentImpl> envs)

Only supported by SharedEvictor.

Specified by:

checkEnvs in class Evictor

getLogger

java.util.logging.Logger getLogger()

Standard logging is supported by PrivateEvictor.

Specified by:

getLogger in class Evictor

startBatch

long startBatch()
          throws DatabaseException

Initializes the iterator, and performs UtilizationTracker eviction once per batch.

Specified by:

startBatch in class Evictor

Throws:

DatabaseException

getMaxINsPerBatch

int getMaxINsPerBatch()

Returns the simple INList size.

Specified by:

getMaxINsPerBatch in class Evictor

getNextIN

IN getNextIN()

Returns the next IN, wrapping if necessary.

Specified by:

getNextIN in class Evictor

getScanIterator

java.util.Iterator<IN> getScanIterator()

Specified by:

getScanIterator in class Evictor

setScanIterator

void setScanIterator(java.util.Iterator<IN> iter)

Specified by:

setScanIterator in class Evictor