org.jboss.cache.interceptors

Class ActivationInterceptor

java.lang.Object

org.jboss.cache.commands.AbstractVisitor

org.jboss.cache.interceptors.base.CommandInterceptor

org.jboss.cache.interceptors.base.JmxStatsCommandInterceptor

org.jboss.cache.interceptors.CacheLoaderInterceptor

org.jboss.cache.interceptors.ActivationInterceptor

All Implemented Interfaces:

Visitor, JmxStatisticsExposer

public class ActivationInterceptor
extends CacheLoaderInterceptor

Loads nodes that don't exist at the time of the call into memory from the CacheLoader. If the nodes were evicted earlier then we remove them from the cache loader after their attributes have been initialized and their children have been loaded in memory.

Version:

$Id: ActivationInterceptor.java 8169 2009-08-07 12:01:23Z manik.surtani@jboss.com $

Author:

{Hany Mesha}

Field Summary

Fields

Modifier and Type	Field and Description
protected static Object	NULL
protected ConcurrentHashMap	transactions List that we have registered for
protected TransactionManager	txMgr

Fields inherited from class org.jboss.cache.interceptors.CacheLoaderInterceptor

buddyFqnTransformer, dataContainer, helper, isActivation, loader, notifier, txTable, useCacheStore

Fields inherited from class org.jboss.cache.interceptors.base.CommandInterceptor

configuration, log, trace

Constructor Summary

Constructors

Constructor and Description
ActivationInterceptor()

Method Summary

Methods

Modifier and Type	Method and Description
Map<String,Object>	dumpStatistics() Returns a map of statistics.
long	getActivations()
void	injectTransactionManager(TransactionManager txMgr)
protected void	recordNodeLoaded(InvocationContext ctx, Fqn fqn)
void	resetStatistics() Resets statistics gathered.
Object	visitClearDataCommand(InvocationContext ctx, ClearDataCommand command) Visits a RemoveDataCommand.
Object	visitGetChildrenNamesCommand(InvocationContext ctx, GetChildrenNamesCommand command) Visits a GetChildrenNamesCommand.
Object	visitGetKeysCommand(InvocationContext ctx, GetKeysCommand command) Visits a GetKeysCommand.
Object	visitGetKeyValueCommand(InvocationContext ctx, GetKeyValueCommand command) Visits a GetKeyValueCommand.
Object	visitGetNodeCommand(InvocationContext ctx, GetNodeCommand command) Visits a GetNodeCommand.
Object	visitMoveCommand(InvocationContext ctx, MoveCommand command) Visits a MoveCommand.
Object	visitPutDataMapCommand(InvocationContext ctx, PutDataMapCommand command) Visits a PutDataMapCommand.
Object	visitPutForExternalReadCommand(InvocationContext ctx, PutForExternalReadCommand command) Visits a PutForExternalReadCommand.
Object	visitPutKeyValueCommand(InvocationContext ctx, PutKeyValueCommand command) Visits a PutKeyValueCommand.
Object	visitRemoveKeyCommand(InvocationContext ctx, RemoveKeyCommand command) Visits a RemoveKeyCommand.
Object	visitRemoveNodeCommand(InvocationContext ctx, RemoveNodeCommand command) Visits a RemoveNodeCommand.

Methods inherited from class org.jboss.cache.interceptors.CacheLoaderInterceptor

getCacheLoaderLoads, getCacheLoaderMisses, injectDependencies, startInterceptor, visitGetDataMapCommand, visitRollbackCommand

Methods inherited from class org.jboss.cache.interceptors.base.JmxStatsCommandInterceptor

checkStatisticsUsed, getStatisticsEnabled, setStatisticsEnabled

Methods inherited from class org.jboss.cache.interceptors.base.CommandInterceptor

getNext, handleDefault, hasNext, invokeNextInterceptor, setNext

Methods inherited from class org.jboss.cache.commands.AbstractVisitor

visitCollection, visitCommitCommand, visitCreateNodeCommand, visitEvictFqnCommand, visitExistsNodeCommand, visitGravitateDataCommand, visitInvalidateCommand, visitOptimisticPrepareCommand, visitPrepareCommand

Methods inherited from class java.lang.Object

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

Field Detail

txMgr

protected TransactionManager txMgr

transactions

protected ConcurrentHashMap transactions

List that we have registered for

NULL

protected static final Object NULL

Constructor Detail

ActivationInterceptor

public ActivationInterceptor()

Method Detail

injectTransactionManager

public void injectTransactionManager(TransactionManager txMgr)

visitClearDataCommand

public Object visitClearDataCommand(InvocationContext ctx,
                           ClearDataCommand command)
                             throws Throwable

Description copied from interface: Visitor

Visits a RemoveDataCommand.

Specified by:

visitClearDataCommand in interface Visitor

Overrides:

visitClearDataCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitRemoveNodeCommand

public Object visitRemoveNodeCommand(InvocationContext ctx,
                            RemoveNodeCommand command)
                              throws Throwable

Description copied from interface: Visitor

Visits a RemoveNodeCommand.

Specified by:

visitRemoveNodeCommand in interface Visitor

Overrides:

visitRemoveNodeCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitGetChildrenNamesCommand

public Object visitGetChildrenNamesCommand(InvocationContext ctx,
                                  GetChildrenNamesCommand command)
                                    throws Throwable

Description copied from interface: Visitor

Visits a GetChildrenNamesCommand.

Specified by:

visitGetChildrenNamesCommand in interface Visitor

Overrides:

visitGetChildrenNamesCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitGetKeysCommand

public Object visitGetKeysCommand(InvocationContext ctx,
                         GetKeysCommand command)
                           throws Throwable

Description copied from interface: Visitor

Visits a GetKeysCommand.

Specified by:

visitGetKeysCommand in interface Visitor

Overrides:

visitGetKeysCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitGetNodeCommand

public Object visitGetNodeCommand(InvocationContext ctx,
                         GetNodeCommand command)
                           throws Throwable

Description copied from interface: Visitor

Visits a GetNodeCommand.

Specified by:

visitGetNodeCommand in interface Visitor

Overrides:

visitGetNodeCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitGetKeyValueCommand

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

Description copied from interface: Visitor

Visits a GetKeyValueCommand.

Specified by:

visitGetKeyValueCommand in interface Visitor

Overrides:

visitGetKeyValueCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitPutForExternalReadCommand

public Object visitPutForExternalReadCommand(InvocationContext ctx,
                                    PutForExternalReadCommand command)
                                      throws Throwable

Description copied from interface: Visitor

Visits a PutForExternalReadCommand.

Specified by:

visitPutForExternalReadCommand in interface Visitor

Overrides:

visitPutForExternalReadCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitPutKeyValueCommand

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

Description copied from interface: Visitor

Visits a PutKeyValueCommand.

Specified by:

visitPutKeyValueCommand in interface Visitor

Overrides:

visitPutKeyValueCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitPutDataMapCommand

public Object visitPutDataMapCommand(InvocationContext ctx,
                            PutDataMapCommand command)
                              throws Throwable

Description copied from interface: Visitor

Visits a PutDataMapCommand.

Specified by:

visitPutDataMapCommand in interface Visitor

Overrides:

visitPutDataMapCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitRemoveKeyCommand

public Object visitRemoveKeyCommand(InvocationContext ctx,
                           RemoveKeyCommand command)
                             throws Throwable

Description copied from interface: Visitor

Visits a RemoveKeyCommand.

Specified by:

visitRemoveKeyCommand in interface Visitor

Overrides:

visitRemoveKeyCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitMoveCommand

public Object visitMoveCommand(InvocationContext ctx,
                      MoveCommand command)
                        throws Throwable

Description copied from interface: Visitor

Visits a MoveCommand.

Specified by:

visitMoveCommand in interface Visitor

Overrides:

visitMoveCommand in class CacheLoaderInterceptor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

getActivations

public long getActivations()

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 CacheLoaderInterceptor

dumpStatistics

public Map<String,Object> dumpStatistics()

Description copied from class: JmxStatsCommandInterceptor

Returns a map of statistics. This is a default implementation which returns an empty map and should be overridden if it is to be meaningful.

Specified by:

dumpStatistics in interface JmxStatisticsExposer

Overrides:

dumpStatistics in class CacheLoaderInterceptor

Returns:

an empty map

recordNodeLoaded

protected void recordNodeLoaded(InvocationContext ctx,
                    Fqn fqn)

Overrides:

recordNodeLoaded in class CacheLoaderInterceptor