org.jboss.cache.interceptors
Class DataGravitatorInterceptor
java.lang.Object
org.jboss.cache.commands.AbstractVisitor
org.jboss.cache.interceptors.base.CommandInterceptor
org.jboss.cache.interceptors.BaseRpcInterceptor
org.jboss.cache.interceptors.DataGravitatorInterceptor
- All Implemented Interfaces:
- Visitor, InterceptorMBean
public class DataGravitatorInterceptor
- extends BaseRpcInterceptor
The Data Gravitator interceptor intercepts cache misses and attempts to
gravitate data from other parts of the cluster.
Only used if Buddy Replication is enabled. Also, the interceptor only kicks
in if an Option
is passed in to force Data
Gravitation for a specific invocation or if autoDataGravitation is
set to true when configuring Buddy Replication.
See the JBoss Cache User Guide for more details on configuration options.
There is a section dedicated to Buddy Replication in the Replication
chapter.
In terms of functionality, if a gravitation call has occured and a cleanup call is needed (based on
how BR is configured), a cleanup call will be broadcast immediately after the gravitation call (no txs)
or if txs are used, an asynchronous call is made to perform the cleanup outside the scope
of the tx that caused the gravitation event.
- Author:
- Manik Surtani (manik@jboss.org)
Method Summary |
void |
injectComponents(BuddyManager buddyManager,
DataContainer dataContainer,
CommandsFactory commandsFactory,
CacheSPI cacheSPI)
|
void |
startInterceptor()
|
Object |
visitCommitCommand(InvocationContext ctx,
CommitCommand command)
Visits a CommitCommand. |
Object |
visitExistsNodeCommand(InvocationContext ctx,
ExistsCommand command)
Visits a RemoteExistsCommand. |
Object |
visitGetChildrenNamesCommand(InvocationContext ctx,
GetChildrenNamesCommand command)
Visits a GetChildrenNamesCommand. |
Object |
visitGetDataMapCommand(InvocationContext ctx,
GetDataMapCommand command)
Visits a GetDataMapCommand. |
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 |
visitRollbackCommand(InvocationContext ctx,
RollbackCommand command)
Visits a RollbackCommand. |
Methods inherited from class org.jboss.cache.commands.AbstractVisitor |
visitCollection, visitCreateNodeCommand, visitEvictFqnCommand, visitGravitateDataCommand, visitInvalidateCommand, visitMoveCommand, visitOptimisticPrepareCommand, visitPrepareCommand, visitPutDataMapCommand, visitPutKeyValueCommand, visitRemoveDataCommand, visitRemoveKeyCommand, visitRemoveNodeCommand |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DataGravitatorInterceptor
public DataGravitatorInterceptor()
injectComponents
public void injectComponents(BuddyManager buddyManager,
DataContainer dataContainer,
CommandsFactory commandsFactory,
CacheSPI cacheSPI)
startInterceptor
public void startInterceptor()
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 AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- command to visit
- Returns:
- response from the visit
- Throws:
Throwable
- in the event of problems.
visitGetDataMapCommand
public Object visitGetDataMapCommand(InvocationContext ctx,
GetDataMapCommand command)
throws Throwable
- Description copied from interface:
Visitor
- Visits a GetDataMapCommand.
- Specified by:
visitGetDataMapCommand
in interface Visitor
- Overrides:
visitGetDataMapCommand
in class AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- command to visit
- Returns:
- response from the visit
- Throws:
Throwable
- in the event of problems.
visitExistsNodeCommand
public Object visitExistsNodeCommand(InvocationContext ctx,
ExistsCommand command)
throws Throwable
- Description copied from interface:
Visitor
- Visits a RemoteExistsCommand.
- Specified by:
visitExistsNodeCommand
in interface Visitor
- Overrides:
visitExistsNodeCommand
in class AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- 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 AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- 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 AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- 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 AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- command to visit
- Returns:
- response from the visit
- Throws:
Throwable
- in the event of problems.
visitRollbackCommand
public Object visitRollbackCommand(InvocationContext ctx,
RollbackCommand command)
throws Throwable
- Description copied from interface:
Visitor
- Visits a RollbackCommand.
- Specified by:
visitRollbackCommand
in interface Visitor
- Overrides:
visitRollbackCommand
in class AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- command to visit
- Returns:
- response from the visit
- Throws:
Throwable
- in the event of problems.
visitCommitCommand
public Object visitCommitCommand(InvocationContext ctx,
CommitCommand command)
throws Throwable
- Description copied from interface:
Visitor
- Visits a CommitCommand.
- Specified by:
visitCommitCommand
in interface Visitor
- Overrides:
visitCommitCommand
in class AbstractVisitor
- Parameters:
ctx
- invocation contextcommand
- command to visit
- Returns:
- response from the visit
- Throws:
Throwable
- in the event of problems.
Copyright © 2008 JBoss, a division of Red Hat. All Rights Reserved.