com.orientechnologies.orient.server.distributed.conflict

Class OMajorityDistributedConflictResolver

java.lang.Object

com.orientechnologies.orient.server.distributed.conflict.OAbstractDistributedConflictResolver

com.orientechnologies.orient.server.distributed.conflict.OMajorityDistributedConflictResolver

All Implemented Interfaces:

ODistributedConflictResolver

Direct Known Subclasses:

OContentDistributedConflictResolver, ODCDistributedConflictResolver, OVersionDistributedConflictResolver

public class OMajorityDistributedConflictResolver
extends OAbstractDistributedConflictResolver

Conflict resolver implementation based on the majority of results. If there is no majority, no operation is executed.

Author:

Luca Garulli

Nested Class Summary

Nested classes/interfaces inherited from interface com.orientechnologies.orient.server.distributed.conflict.ODistributedConflictResolver

ODistributedConflictResolver.OConflictResult

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME

Constructor Summary

Constructors

Constructor and Description
OMajorityDistributedConflictResolver()

Method Summary

Modifier and Type	Method and Description
String	getName() Name to register in the factory.
ODistributedConflictResolver.OConflictResult	onConflict(String databaseName, String clusterName, com.orientechnologies.orient.core.id.ORecordId rid, ODistributedServerManager dManager, Map<Object,List<String>> candidates, com.orientechnologies.orient.core.record.impl.ODocument config) Called on distributed conflict.

Methods inherited from class com.orientechnologies.orient.server.distributed.conflict.OAbstractDistributedConflictResolver

getBestResult

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

Constructor Detail

OMajorityDistributedConflictResolver

public OMajorityDistributedConflictResolver()

Method Detail

onConflict

public ODistributedConflictResolver.OConflictResult onConflict(String databaseName,
                                                               String clusterName,
                                                               com.orientechnologies.orient.core.id.ORecordId rid,
                                                               ODistributedServerManager dManager,
                                                               Map<Object,List<String>> candidates,
                                                               com.orientechnologies.orient.core.record.impl.ODocument config)

Description copied from interface: ODistributedConflictResolver

Called on distributed conflict. It is responsible to resolve the conflicts by providing the winning result. If it's not able to do that, NULL is returned.

rid - RecordID of the record in conflict

dManager - Current distributed manager instance

candidates - All the values from the servers grouped by value. The key could also be an exception in case the record was not found. @return The winning object

config - The ODocument representing the configuration of the conflict resolver. it's optional, null means no configuration

Returns:

The winning result object

getName

public String getName()

Description copied from interface: ODistributedConflictResolver

Name to register in the factory.