com.j_spaces.core.cluster

Class FailOverPolicy

java.lang.Object

com.j_spaces.core.cluster.FailOverPolicy

All Implemented Interfaces:

Externalizable, Serializable

public class FailOverPolicy
extends Object
implements Serializable, Externalizable

Copyright (c) 2010 GigaSpaces Technologies Ltd. All rights reserved The software source code is proprietary and confidential information of GigaSpaces. You may use the software source code solely under the terms and limitations of The license agreement granted to you by GigaSpaces.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FailOverPolicy.FailOverPolicyDescription

Field Summary

Fields

Modifier and Type	Field and Description
int	_numberOfBackups For dynamic clustering - if >0
static int	DEFAULT_FAILOVER_SPACE_FINDER_TIMEOUT
List<String>	failOverGroupMembersNames
List<SpaceURL>	failOverGroupMembersURLs
String	failOverGroupName
FailOverPolicy.FailOverPolicyDescription	m_DefaultFOPolicy
FailOverPolicy.FailOverPolicyDescription	m_NotifyFOPolicy
FailOverPolicy.FailOverPolicyDescription	m_ReadFOPolicy
FailOverPolicy.FailOverPolicyDescription	m_TakeFOPolicy
FailOverPolicy.FailOverPolicyDescription	m_WriteFOPolicy
static int	POLICY_TYPE_FAIL_TO_AVAILABLE
static int	POLICY_TYPE_FAIL_TO_BACKUP
long	spaceFinderTimeout

Constructor Summary

Constructors

Constructor and Description
FailOverPolicy()

Method Summary

Modifier and Type	Method and Description
void	buildElectionGroups(String spaceName) Build all the election groups in fail-over group.
ActiveElectionConfig	getActiveElectionConfig()
List<String>	getElectionGroupMembers() Get election group members
String	getElectionGroupName()
List<SpaceURL>	getRecoverableTargets(String memberName) Returns a list of URLs or an empty list of primary targets for given member.
boolean	isFailBackEnabled()
void	readExternal(ObjectInput in)
void	setActiveElectionConfig(ActiveElectionConfig activeElectConfig) Set active election configuration.
void	setFailBackEnabled(boolean isFailBackEnabled)
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

_numberOfBackups

public int _numberOfBackups

For dynamic clustering - if >0

failOverGroupName

public String failOverGroupName

failOverGroupMembersNames

public List<String> failOverGroupMembersNames

failOverGroupMembersURLs

public List<SpaceURL> failOverGroupMembersURLs

spaceFinderTimeout

public long spaceFinderTimeout

m_WriteFOPolicy

public FailOverPolicy.FailOverPolicyDescription m_WriteFOPolicy

m_ReadFOPolicy

public FailOverPolicy.FailOverPolicyDescription m_ReadFOPolicy

m_TakeFOPolicy

public FailOverPolicy.FailOverPolicyDescription m_TakeFOPolicy

m_NotifyFOPolicy

public FailOverPolicy.FailOverPolicyDescription m_NotifyFOPolicy

m_DefaultFOPolicy

public FailOverPolicy.FailOverPolicyDescription m_DefaultFOPolicy

POLICY_TYPE_FAIL_TO_AVAILABLE

public static final int POLICY_TYPE_FAIL_TO_AVAILABLE

See Also:

Constant Field Values

POLICY_TYPE_FAIL_TO_BACKUP

public static final int POLICY_TYPE_FAIL_TO_BACKUP

See Also:

Constant Field Values

DEFAULT_FAILOVER_SPACE_FINDER_TIMEOUT

public static final int DEFAULT_FAILOVER_SPACE_FINDER_TIMEOUT

See Also:

Constant Field Values

Constructor Detail

FailOverPolicy

public FailOverPolicy()

Method Detail

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

isFailBackEnabled

public boolean isFailBackEnabled()

setFailBackEnabled

public void setFailBackEnabled(boolean isFailBackEnabled)

toString

public String toString()

Overrides:

toString in class Object

buildElectionGroups

public void buildElectionGroups(String spaceName)

Build all the election groups in fail-over group. Election group is a group of spaces that contains the primary space and all of its backup-only members

getElectionGroupName

public String getElectionGroupName()

Returns:

the election group of give space

setActiveElectionConfig

public void setActiveElectionConfig(ActiveElectionConfig activeElectConfig)

Set active election configuration.

getActiveElectionConfig

public ActiveElectionConfig getActiveElectionConfig()

Returns:

active election configuration

getRecoverableTargets

public List<SpaceURL> getRecoverableTargets(String memberName)

Returns a list of URLs or an empty list of primary targets for given member.

Parameters:

memberName - member that looks for a list of primary targets.

Returns:

a list of URLs or an empty list of primary targets. Never returns null.

getElectionGroupMembers

public List<String> getElectionGroupMembers()

Get election group members

Returns:

list of group members