org.infinispan.interceptors

Class CacheLoaderInterceptor

java.lang.Object

org.infinispan.commands.AbstractVisitor

org.infinispan.interceptors.base.CommandInterceptor

org.infinispan.interceptors.base.JmxStatsCommandInterceptor

org.infinispan.interceptors.CacheLoaderInterceptor

All Implemented Interfaces:

Visitor, JmxStatisticsExposer

Direct Known Subclasses:

ActivationInterceptor, ClusteredCacheLoaderInterceptor

public class CacheLoaderInterceptor
extends JmxStatsCommandInterceptor

Field Summary

Fields

Modifier and Type	Field and Description
protected CacheLoaderManager	clm
protected boolean	enabled
protected EntryFactory	entryFactory
protected CacheLoader	loader
protected CacheNotifier	notifier

Fields inherited from class org.infinispan.interceptors.base.CommandInterceptor

cacheConfiguration

Constructor Summary

Constructors

Constructor and Description
CacheLoaderInterceptor()

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	canLoad(Object key)
void	disableCacheLoader(String loaderType)
void	disableInterceptor()
protected boolean	forceLoad(Object key, Set<Flag> flags)
long	getCacheLoaderLoads()
long	getCacheLoaderMisses()
Collection<String>	getCacheLoaders()
protected Log	getLog()
protected void	injectDependencies(CacheLoaderManager clm, EntryFactory entryFactory, CacheNotifier notifier, DataContainer dataContainer)
protected boolean	isDeltaWrite(Set<Flag> flags) Indicates whether the operation is a delta write.
protected Boolean	loadIfNeeded(InvocationContext ctx, Object key, boolean isRetrieval, FlagAffectedCommand cmd) Loads from the cache loader the entry for the given key.
void	resetStatistics() Resets statistics gathered.
protected void	sendNotification(Object key, Object value, boolean pre, InvocationContext ctx)
protected void	startInterceptor()
Object	visitApplyDeltaCommand(InvocationContext ctx, ApplyDeltaCommand command)
Object	visitGetKeyValueCommand(InvocationContext ctx, GetKeyValueCommand command)
Object	visitInvalidateCommand(InvocationContext ctx, InvalidateCommand command)
Object	visitPutKeyValueCommand(InvocationContext ctx, PutKeyValueCommand command)
Object	visitRemoveCommand(InvocationContext ctx, RemoveCommand command)
Object	visitReplaceCommand(InvocationContext ctx, ReplaceCommand command)

Methods inherited from class org.infinispan.interceptors.base.JmxStatsCommandInterceptor

checkStatisticsUsed, getStatisticsEnabled, setStatisticsEnabled

Methods inherited from class org.infinispan.interceptors.base.CommandInterceptor

getLockAcquisitionTimeout, getNext, handleDefault, hasNext, hasSkipLocking, injectConfiguration, invokeNextInterceptor, setNext

Methods inherited from class org.infinispan.commands.AbstractVisitor

visitClearCommand, visitCollection, visitCommitCommand, visitDistributedExecuteCommand, visitEntrySetCommand, visitEvictCommand, visitInvalidateL1Command, visitKeySetCommand, visitLockControlCommand, visitPrepareCommand, visitPutMapCommand, visitRollbackCommand, visitSizeCommand, visitUnknownCommand, visitValuesCommand

Methods inherited from class java.lang.Object

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

Field Detail

clm

protected CacheLoaderManager clm

notifier

protected CacheNotifier notifier

loader

protected CacheLoader loader

enabled

protected volatile boolean enabled

entryFactory

protected EntryFactory entryFactory

Constructor Detail

CacheLoaderInterceptor

public CacheLoaderInterceptor()

Method Detail

getLog

protected Log getLog()

Overrides:

getLog in class CommandInterceptor

injectDependencies

protected void injectDependencies(CacheLoaderManager clm,
                      EntryFactory entryFactory,
                      CacheNotifier notifier,
                      DataContainer dataContainer)

startInterceptor

protected void startInterceptor()

visitApplyDeltaCommand

public Object visitApplyDeltaCommand(InvocationContext ctx,
                            ApplyDeltaCommand command)
                              throws Throwable

Specified by:

visitApplyDeltaCommand in interface Visitor

Overrides:

visitApplyDeltaCommand in class AbstractVisitor

Throws:

Throwable

visitPutKeyValueCommand

public Object visitPutKeyValueCommand(InvocationContext ctx,
                             PutKeyValueCommand command)
                               throws Throwable

Specified by:

visitPutKeyValueCommand in interface Visitor

Overrides:

visitPutKeyValueCommand in class AbstractVisitor

Throws:

Throwable

visitGetKeyValueCommand

public Object visitGetKeyValueCommand(InvocationContext ctx,
                             GetKeyValueCommand command)
                               throws Throwable

Specified by:

visitGetKeyValueCommand in interface Visitor

Overrides:

visitGetKeyValueCommand in class AbstractVisitor

Throws:

Throwable

visitInvalidateCommand

public Object visitInvalidateCommand(InvocationContext ctx,
                            InvalidateCommand command)
                              throws Throwable

Specified by:

visitInvalidateCommand in interface Visitor

Overrides:

visitInvalidateCommand in class AbstractVisitor

Throws:

Throwable

visitRemoveCommand

public Object visitRemoveCommand(InvocationContext ctx,
                        RemoveCommand command)
                          throws Throwable

Specified by:

visitRemoveCommand in interface Visitor

Overrides:

visitRemoveCommand in class AbstractVisitor

Throws:

Throwable

visitReplaceCommand

public Object visitReplaceCommand(InvocationContext ctx,
                         ReplaceCommand command)
                           throws Throwable

Specified by:

visitReplaceCommand in interface Visitor

Overrides:

visitReplaceCommand in class AbstractVisitor

Throws:

Throwable

forceLoad

protected boolean forceLoad(Object key,
                Set<Flag> flags)

isDeltaWrite

protected boolean isDeltaWrite(Set<Flag> flags)

Indicates whether the operation is a delta write. If it is, the previous value needs to be loaded from the cache store so that it can be merged.

canLoad

protected boolean canLoad(Object key)

loadIfNeeded

protected final Boolean loadIfNeeded(InvocationContext ctx,
                   Object key,
                   boolean isRetrieval,
                   FlagAffectedCommand cmd)
                              throws Throwable

Loads from the cache loader the entry for the given key. A found value is loaded into the current context. The method returns whether the value was found or not, or even if the cache loader was checked.

Parameters:

ctx - The current invocation's context

key - The key for the entry to look up

isRetrieval - Whether or not this was called in the scope of a get

cmd - The command that was called that now wants to query the cache loader

Returns:

Whether or not the entry was found in the cache loader. A value of null means the cache loader was never queried for the value, so it was neither a hit or a miss.

Throws:

Throwable

sendNotification

protected void sendNotification(Object key,
                    Object value,
                    boolean pre,
                    InvocationContext ctx)

getCacheLoaderLoads

public long getCacheLoaderLoads()

getCacheLoaderMisses

public long getCacheLoaderMisses()

resetStatistics

public void resetStatistics()

Description copied from class: JmxStatsCommandInterceptor

Resets statistics gathered. Is a no-op, and should be overridden if it is to be meaningful.

Specified by:

resetStatistics in interface JmxStatisticsExposer

Overrides:

resetStatistics in class JmxStatsCommandInterceptor

getCacheLoaders

public Collection<String> getCacheLoaders()

disableCacheLoader

public void disableCacheLoader(String loaderType)

disableInterceptor

public void disableInterceptor()