com.hazelcast.map.impl

Class MapService

java.lang.Object

com.hazelcast.map.impl.MapService

All Implemented Interfaces:

ClientAwareService, EventPublishingService<Object,ListenerAdapter>, ManagedService, MigrationAwareService, NotifiableEventListener, PartitionAwareService, PostJoinAwareService, QuorumAwareService, RemoteService, ReplicationSupportingService, SplitBrainHandlerService, StatisticsAwareService, TransactionalService

public class MapService
extends Object
implements ManagedService, MigrationAwareService, TransactionalService, RemoteService, EventPublishingService<Object,ListenerAdapter>, PostJoinAwareService, SplitBrainHandlerService, ReplicationSupportingService, StatisticsAwareService, PartitionAwareService, ClientAwareService, QuorumAwareService, NotifiableEventListener

Defines map service behavior.

See Also:

MapManagedService, MapMigrationAwareService, MapTransactionalService, MapRemoteService, MapEventPublishingService, MapPostJoinAwareService, MapSplitBrainHandlerService, MapReplicationSupportingService, MapStatisticsAwareService, MapPartitionAwareService, MapQuorumAwareService, MapClientAwareService, MapServiceContext

Field Summary

Fields

Modifier and Type	Field and Description
protected ClientAwareService	clientAwareService
protected EventPublishingService	eventPublishingService
protected ManagedService	managedService
protected MapServiceContext	mapServiceContext
protected MigrationAwareService	migrationAwareService
protected PartitionAwareService	partitionAwareService
protected PostJoinAwareService	postJoinAwareService
protected QuorumAwareService	quorumAwareService
protected RemoteService	remoteService
protected ReplicationSupportingService	replicationSupportingService
static String	SERVICE_NAME
protected SplitBrainHandlerService	splitBrainHandlerService
protected StatisticsAwareService	statisticsAwareService
protected TransactionalService	transactionalService

Constructor Summary

Constructors

Constructor and Description
MapService()

Method Summary

Methods

Modifier and Type	Method and Description
void	beforeMigration(PartitionMigrationEvent event)
void	clearPartitionReplica(int partitionId)
void	clientDisconnected(String clientUuid) Invoked when a client disconnects from a member.
void	commitMigration(PartitionMigrationEvent event)
DistributedObject	createDistributedObject(String objectName) Creates a distributed object.
<T extends TransactionalObject> T	createTransactionalObject(String name, Transaction transaction)
void	destroyDistributedObject(String objectName) Destroys a distributed object.
void	dispatchEvent(Object event, ListenerAdapter listener)
MapServiceContext	getMapServiceContext()
Operation	getPostJoinOperation() Post join operations must be lock free, meaning no locks at all: no partition locks, no key-based locks, no service level locks, no database interaction!
String	getQuorumName(String name)
Map<String,LocalMapStats>	getStats()
void	init(NodeEngine nodeEngine, Properties properties) Initializes this ManagedService
void	onDeregister(Object service, String serviceName, String topic, EventRegistration registration) Called when this listener deregistered from EventService.
void	onPartitionLost(InternalPartitionLostEvent partitionLostEvent) Invoked when a partition lost is detected
void	onRegister(Object service, String serviceName, String topic, EventRegistration registration) Called when this listener registered to EventService.
void	onReplicationEvent(WanReplicationEvent replicationEvent)
Runnable	prepareMergeRunnable() When the 2 separate clusters merge (resolve a split brain), this method is called to return a Runnable that will merge the clusters.
Operation	prepareReplicationOperation(PartitionReplicationEvent event)
void	reset() reset this ManagedService back to initial state.
void	rollbackMigration(PartitionMigrationEvent event)
void	rollbackTransaction(String transactionId)
void	shutdown(boolean terminate) Shuts down this ManagedService.

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

managedService

protected ManagedService managedService

migrationAwareService

protected MigrationAwareService migrationAwareService

transactionalService

protected TransactionalService transactionalService

remoteService

protected RemoteService remoteService

eventPublishingService

protected EventPublishingService eventPublishingService

postJoinAwareService

protected PostJoinAwareService postJoinAwareService

splitBrainHandlerService

protected SplitBrainHandlerService splitBrainHandlerService

replicationSupportingService

protected ReplicationSupportingService replicationSupportingService

statisticsAwareService

protected StatisticsAwareService statisticsAwareService

partitionAwareService

protected PartitionAwareService partitionAwareService

clientAwareService

protected ClientAwareService clientAwareService

quorumAwareService

protected QuorumAwareService quorumAwareService

mapServiceContext

protected MapServiceContext mapServiceContext

Constructor Detail

MapService

public MapService()

Method Detail

dispatchEvent

public void dispatchEvent(Object event,
                 ListenerAdapter listener)

Specified by:

dispatchEvent in interface EventPublishingService<Object,ListenerAdapter>

init

public void init(NodeEngine nodeEngine,
        Properties properties)

Description copied from interface: ManagedService

Initializes this ManagedService

Specified by:

init in interface ManagedService

Parameters:

nodeEngine - the NodeEngine that this ManagedService belongs to.

properties - the Properties. Can be used to pass settings to the service.

reset

public void reset()

Description copied from interface: ManagedService

reset this ManagedService back to initial state. todo: what is the purpose of reset

Specified by:

reset in interface ManagedService

shutdown

public void shutdown(boolean terminate)

Description copied from interface: ManagedService

Shuts down this ManagedService. todo: what is the purpose of the terminate variable.

Specified by:

shutdown in interface ManagedService

Parameters:

terminate - true to shut down the ManagedService

prepareReplicationOperation

public Operation prepareReplicationOperation(PartitionReplicationEvent event)

Specified by:

prepareReplicationOperation in interface MigrationAwareService

beforeMigration

public void beforeMigration(PartitionMigrationEvent event)

Specified by:

beforeMigration in interface MigrationAwareService

commitMigration

public void commitMigration(PartitionMigrationEvent event)

Specified by:

commitMigration in interface MigrationAwareService

rollbackMigration

public void rollbackMigration(PartitionMigrationEvent event)

Specified by:

rollbackMigration in interface MigrationAwareService

clearPartitionReplica

public void clearPartitionReplica(int partitionId)

Specified by:

clearPartitionReplica in interface MigrationAwareService

getPostJoinOperation

public Operation getPostJoinOperation()

Description copied from interface: PostJoinAwareService

Post join operations must be lock free, meaning no locks at all: no partition locks, no key-based locks, no service level locks, no database interaction!

Post join operations should return response, at least a null response.

Specified by:

getPostJoinOperation in interface PostJoinAwareService

Returns:

a response from the post join operation. Can be null.

createDistributedObject

public DistributedObject createDistributedObject(String objectName)

Description copied from interface: RemoteService

Creates a distributed object.

Specified by:

createDistributedObject in interface RemoteService

Parameters:

objectName - the name for the created distributed object

Returns:

the created distributed object

destroyDistributedObject

public void destroyDistributedObject(String objectName)

Description copied from interface: RemoteService

Destroys a distributed object.

Specified by:

destroyDistributedObject in interface RemoteService

Parameters:

objectName - the name of the distributed object to destroy

onReplicationEvent

public void onReplicationEvent(WanReplicationEvent replicationEvent)

Specified by:

onReplicationEvent in interface ReplicationSupportingService

onPartitionLost

public void onPartitionLost(InternalPartitionLostEvent partitionLostEvent)

Description copied from interface: PartitionAwareService

Invoked when a partition lost is detected

Specified by:

onPartitionLost in interface PartitionAwareService

Parameters:

partitionLostEvent - The event object that contains the partition id and the number of replicas that is lost

prepareMergeRunnable

public Runnable prepareMergeRunnable()

Description copied from interface: SplitBrainHandlerService

When the 2 separate clusters merge (resolve a split brain), this method is called to return a Runnable that will merge the clusters.

Specified by:

prepareMergeRunnable in interface SplitBrainHandlerService

Returns:

a Runnable that will merge the clusters

createTransactionalObject

public <T extends TransactionalObject> T createTransactionalObject(String name,
                                                          Transaction transaction)

Specified by:

createTransactionalObject in interface TransactionalService

rollbackTransaction

public void rollbackTransaction(String transactionId)

Specified by:

rollbackTransaction in interface TransactionalService

getStats

public Map<String,LocalMapStats> getStats()

Specified by:

getStats in interface StatisticsAwareService

getQuorumName

public String getQuorumName(String name)

Specified by:

getQuorumName in interface QuorumAwareService

getMapServiceContext

public MapServiceContext getMapServiceContext()

clientDisconnected

public void clientDisconnected(String clientUuid)

Description copied from interface: ClientAwareService

Invoked when a client disconnects from a member.

Specified by:

clientDisconnected in interface ClientAwareService

Parameters:

clientUuid - the Uuid of the client that disconnected from a member

onRegister

public void onRegister(Object service,
              String serviceName,
              String topic,
              EventRegistration registration)

Description copied from interface: NotifiableEventListener

Called when this listener registered to EventService.

Specified by:

onRegister in interface NotifiableEventListener

Parameters:

service - the service instance that event belongs to

serviceName - name of the service that event belongs to

topic - name of the topic that event belongs to

registration - the EventRegistration instance that holds information about the registration

onDeregister

public void onDeregister(Object service,
                String serviceName,
                String topic,
                EventRegistration registration)

Description copied from interface: NotifiableEventListener

Called when this listener deregistered from EventService.

Specified by:

onDeregister in interface NotifiableEventListener

Parameters:

service - the service instance that event belongs to

serviceName - name of the service that event belongs to

topic - name of the topic that event belongs to

registration - the EventRegistration instance that holds information about the registration