org.objectweb.perseus.distribution.jgroups
Class JGroupsControllerService

java.lang.Object
  org.objectweb.perseus.distribution.jgroups.JGroupsControllerService

All Implemented Interfaces:

DistResControllerService

public class JGroupsControllerService

extends java.lang.Object

implements DistResControllerService

Method Summary

void	copyCoordinationFrom(java.lang.Object rId, java.io.Serializable nodeId) Replicates the coordination of a resource from a remote node to the local one.
void	copyCoordinationTo(java.lang.Object resId, java.lang.Object nodeId)
java.util.Vector	getCoordinators(java.lang.Object rId)
java.io.Serializable	getNodeId() Returns the id of the local node which can be sent in messages as it is serializable.
void	migrateCoordinationFrom(java.lang.Object rId, java.io.Serializable nodeId) Migrates the coordination of a resource from a remote node to the local one.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

toString

public java.lang.String toString()

getCoordinators

public java.util.Vector getCoordinators(java.lang.Object rId)

Specified by:

getCoordinators in interface DistResControllerService

migrateCoordinationFrom

public void migrateCoordinationFrom(java.lang.Object rId,
                                    java.io.Serializable nodeId)
                             throws NotCoordinatorException,
                                    AlreadyCoordinatorException

Description copied from interface: DistResControllerService

Migrates the coordination of a resource from a remote node to the local one. This operation do preserve the guaranteed order of message delivery, so that the migration must be completely transparent to users and coordinators.

Specified by:

migrateCoordinationFrom in interface DistResControllerService

Parameters:

rId - the id of the related resource

nodeId - id of the node from which the coordination is to be moved

Throws:

NotCoordinatorException - if the designated node is not a coord.

AlreadyCoordinatorException - if the local node is already a coordinator

copyCoordinationFrom

public void copyCoordinationFrom(java.lang.Object rId,
                                 java.io.Serializable nodeId)
                          throws NotCoordinatorException,
                                 AlreadyCoordinatorException

Description copied from interface: DistResControllerService

Replicates the coordination of a resource from a remote node to the local one. This operation do preserve the guaranteed order of message delivery, so that the replication must be completely transparent to users and coordinators.

Specified by:

copyCoordinationFrom in interface DistResControllerService

Parameters:

rId - the id of the related resource

nodeId - the id of the node from which the coordination is to be replicated

Throws:

AlreadyCoordinatorException - if the local node is already a coordinator

NotCoordinatorException - if the designated node is not a coordinator

copyCoordinationTo

public void copyCoordinationTo(java.lang.Object resId,
                               java.lang.Object nodeId)
                        throws NotCoordinatorException

Throws:

NotCoordinatorException

getNodeId

public java.io.Serializable getNodeId()

Description copied from interface: DistResControllerService

Returns the id of the local node which can be sent in messages as it is serializable.

Specified by:

getNodeId in interface DistResControllerService

Returns:

the id of the local node