com.orientechnologies.orient.server.distributed

Class OModifiableDistributedConfiguration

java.lang.Object

com.orientechnologies.orient.server.distributed.ODistributedConfiguration

com.orientechnologies.orient.server.distributed.OModifiableDistributedConfiguration

public class OModifiableDistributedConfiguration
extends ODistributedConfiguration

Modifiable Distributed configuration. It's created starting from a ODistributedConfiguration object. Every changes increment the field "version".

Author:

Luca Garulli (l.garulli--at--orientdb.com)

Nested Class Summary

Nested classes/interfaces inherited from class com.orientechnologies.orient.server.distributed.ODistributedConfiguration

ODistributedConfiguration.NEW_NODE_STRATEGIES, ODistributedConfiguration.ROLES

Field Summary

Fields inherited from class com.orientechnologies.orient.server.distributed.ODistributedConfiguration

ALL_WILDCARD, AUTO_DEPLOY, CLUSTERS, configuration, DCS, DEFAULT_CLUSTER_NAME, DEFAULT_READ_QUORUM, DEFAULT_WRITE_QUORUM, EXECUTION_MODE, EXECUTION_MODE_SYNCHRONOUS, NEW_NODE_STRATEGY, NEW_NODE_TAG, OWNER, QUORUM_ALL, QUORUM_LOCAL_DC, QUORUM_MAJORITY, READ_QUORUM, READ_YOUR_WRITES, SERVERS, VERSION, WRITE_QUORUM

Constructor Summary

Constructors

Constructor and Description
OModifiableDistributedConfiguration(ODocument iConfiguration)

Method Summary

Modifier and Type	Method and Description
List<String>	addNewNodeInServerList(String iNode) Adds a server in the configuration.
OModifiableDistributedConfiguration	modify()
void	override(ODocument newCfg)
List<String>	removeServer(String iNode) Removes a server from the list. NOTE: It must be executed in distributed database lock.
List<String>	setServerOffline(String iNode, String newLockManagerServer) Set a server offline.
void	setServerOwner(String iClusterName, String iServerName) Sets the server as owner for the given cluster.
void	setServerRole(String iServerName, ODistributedConfiguration.ROLES role) Sets the server role between MASTER (default) and REPLICA.

Methods inherited from class com.orientechnologies.orient.server.distributed.ODistributedConfiguration

clearForceWriteQuorum, forceWriteQuorum, getAllConfiguredServers, getClusterConfiguration, getClusterNames, getClusterOwner, getClustersOnServer, getClustersOwnedByServer, getConfiguredClusterOwner, getConfiguredServers, getDataCenterOfServer, getDataCenters, getDataCenterServers, getDataCenterWriteQuorum, getDefaultServerRole, getDocument, getGlobalReadQuorum, getMasterServers, getNewNodeStrategy, getOwnedClustersByServer, getReadQuorum, getRegisteredServers, getServerClusterMap, getServerRole, getServers, getServers, getVersion, getWriteQuorum, hasDataCenterConfiguration, isAutoDeploy, isExecutionModeSynchronous, isLocalDataCenterWriteQuorum, isReadYourWrites, isReplicationActive, isServerContainingAllClusters, isServerContainingCluster, isSharded, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

OModifiableDistributedConfiguration

public OModifiableDistributedConfiguration(ODocument iConfiguration)

Method Detail

modify

public OModifiableDistributedConfiguration modify()

Overrides:

modify in class ODistributedConfiguration

setServerRole

public void setServerRole(String iServerName,
                          ODistributedConfiguration.ROLES role)

Sets the server role between MASTER (default) and REPLICA.

addNewNodeInServerList

public List<String> addNewNodeInServerList(String iNode)

Adds a server in the configuration. It replaces all the tags <NEW_NODE> with the new server name
NOTE: It must be executed in distributed database lock.

Parameters:

iNode - Server name

Returns:

the list of changed partitions or null if no changes have applied

setServerOwner

public void setServerOwner(String iClusterName,
                           String iServerName)

Sets the server as owner for the given cluster. The owner server is the first in server list.
NOTE: It must be executed in distributed database lock.

Parameters:

iClusterName - Cluster name or *. Does not accept null.

removeServer

public List<String> removeServer(String iNode)

Removes a server from the list.
NOTE: It must be executed in distributed database lock.

Parameters:

iNode - Server name

Returns:

setServerOffline

public List<String> setServerOffline(String iNode,
                                     String newLockManagerServer)

Set a server offline. It assures the offline server is never on top of the list.
NOTE: It must be executed in distributed database lock.

Parameters:

iNode - Server name

newLockManagerServer - New Lock Manager server name

Returns:

override

public void override(ODocument newCfg)