com.sleepycat.je.rep.impl

Class GroupService

java.lang.Object

com.sleepycat.je.rep.utilint.ServiceDispatcher.ExecutingService

com.sleepycat.je.rep.impl.GroupService

public class GroupService
extends ServiceDispatcher.ExecutingService

Field Summary

Fields

Modifier and Type	Field and Description
static String	SERVICE_NAME

Constructor Summary

Constructors

Constructor and Description
GroupService(ServiceDispatcher dispatcher, RepNode repNode)

Method Summary

Modifier and Type	Method and Description
protected void	cancel() Cancel the service as part of the registration being canceled.
Runnable	getRunnable(DataChannel dataChannel)
TextProtocol.ResponseMessage	process(RepGroupProtocol.DeleteMember deleteMember) Deletes a current member from the group, which marks the node as removed and deletes its entry from the rep group DB.
TextProtocol.ResponseMessage	process(RepGroupProtocol.EnsureNode ensureNode) Ensures that the Monitor node, as described in the request, is a member of the group.
TextProtocol.ResponseMessage	process(RepGroupProtocol.GroupRequest groupRequest) Wraps the replication group as currently cached on this node in a Response message and returns it.
TextProtocol.ResponseMessage	process(RepGroupProtocol.RemoveMember removeMember) Removes a current member from the group.
TextProtocol.ResponseMessage	process(RepGroupProtocol.TransferMaster transferMaster) Transfer the master role from the current master to one of the specified replicas.
TextProtocol.ResponseMessage	process(RepGroupProtocol.UpdateAddress updateAddress) Update the network address for a dead replica.

Methods inherited from class com.sleepycat.je.rep.utilint.ServiceDispatcher.ExecutingService

ensureChannelBlocking

Methods inherited from class java.lang.Object

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

Field Detail

SERVICE_NAME

public static final String SERVICE_NAME

See Also:

Constant Field Values

Constructor Detail

GroupService

public GroupService(ServiceDispatcher dispatcher,
                    RepNode repNode)

Method Detail

cancel

protected void cancel()

Cancel the service as part of the registration being canceled.

Overrides:

cancel in class ServiceDispatcher.ExecutingService

process

public TextProtocol.ResponseMessage process(RepGroupProtocol.GroupRequest groupRequest)

Wraps the replication group as currently cached on this node in a Response message and returns it.

process

public TextProtocol.ResponseMessage process(RepGroupProtocol.EnsureNode ensureNode)

Ensures that the Monitor node, as described in the request, is a member of the group.

Parameters:

ensureNode - the request message describing the monitor node

Returns:

EnsureOK message if the monitor node is already part of the rep group, or was just made a part of the replication group. It returns a Fail message if it could not be made part of the group. The message associated with the response provides further details.

process

public TextProtocol.ResponseMessage process(RepGroupProtocol.RemoveMember removeMember)

Removes a current member from the group.

Parameters:

removeMember - the request identifying the member to be removed.

Returns:

OK message if the member was removed from the group.

process

public TextProtocol.ResponseMessage process(RepGroupProtocol.DeleteMember deleteMember)

Deletes a current member from the group, which marks the node as removed and deletes its entry from the rep group DB.

Parameters:

deleteMember - the request identifying the member to be deleted

Returns:

OK message if the member was deleted from the group

process

public TextProtocol.ResponseMessage process(RepGroupProtocol.UpdateAddress updateAddress)

Update the network address for a dead replica.

Parameters:

updateAddress - the request identifying the new network address for the node.

Returns:

OK message if the address is successfully updated.

process

public TextProtocol.ResponseMessage process(RepGroupProtocol.TransferMaster transferMaster)

Transfer the master role from the current master to one of the specified replicas.

Parameters:

transferMaster - the request identifying nodes to be considered for the role of new master

Returns:

null

getRunnable

public Runnable getRunnable(DataChannel dataChannel)

Specified by:

getRunnable in class ServiceDispatcher.ExecutingService