ReplicatedMapService (Hazelcast Root 3.12.12 API)

java.lang.Object
- com.hazelcast.replicatedmap.impl.ReplicatedMapService

All Implemented Interfaces:

EventPublishingService<Object,Object>, ManagedService, MigrationAwareService, QuorumAwareService, RemoteService, SplitBrainHandlerService, StatisticsAwareService<LocalReplicatedMapStats>
```
public class ReplicatedMapService
extends Object
implements ManagedService, RemoteService, EventPublishingService<Object,Object>, MigrationAwareService, SplitBrainHandlerService, StatisticsAwareService<LocalReplicatedMapStats>, QuorumAwareService
```
This is the main service implementation to handle proxy creation, event publishing, migration, anti-entropy and manages the backing PartitionContainers that actually hold the data

Field Summary

Fields
Modifier and Type Field and Description

static int INVOCATION_TRY_COUNT

static String SERVICE_NAME

Fields
Modifier and Type	Field and Description
`static int`	`INVOCATION_TRY_COUNT`
`static String`	`SERVICE_NAME`

Constructor Summary

Constructors
Constructor and Description

ReplicatedMapService(NodeEngine nodeEngine)

Constructors
Constructor and Description
`ReplicatedMapService(NodeEngine nodeEngine)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`beforeMigration(PartitionMigrationEvent event)` Called before migration process starts, on both source and destination members.
`void`	`commitMigration(PartitionMigrationEvent event)` Commits the migration process for this service, on both source and destination members.
`DistributedObject`	`createDistributedObject(String objectName)` Creates a distributed object.
`LocalReplicatedMapStatsImpl`	`createReplicatedMapStats(String name)`
`void`	`destroyDistributedObject(String objectName)` Destroys a distributed object.
`void`	`dispatchEvent(Object event, Object listener)` Notifies the service of a published event.
`void`	`ensureQuorumPresent(String distributedObjectName, QuorumType requiredQuorumPermissionType)`
`Collection<ReplicatedRecordStore>`	`getAllReplicatedRecordStores(String name)`
`ReplicatedMapEventPublishingService`	`getEventPublishingService()`
`LocalReplicatedMapStatsImpl`	`getLocalMapStatsImpl(String name)`
`Object`	`getMergePolicy(String name)`
`NodeEngine`	`getNodeEngine()`
`PartitionContainer`	`getPartitionContainer(int partitionId)`
`String`	`getQuorumName(String name)` Gets the name of the quorum associated with specified operation name.
`ReplicatedMapConfig`	`getReplicatedMapConfig(String name)`
`ReplicatedRecordStore`	`getReplicatedRecordStore(String name, boolean create, int partitionId)`
`ReplicatedRecordStore`	`getReplicatedRecordStore(String name, boolean create, Object key)`
`Map<String,LocalReplicatedMapStats>`	`getStats()` Return the service statistics for the local instance.
`void`	`init(NodeEngine nodeEngine, Properties properties)` Initializes this service.
`void`	`initializeListeners(String name)`
`Runnable`	`prepareMergeRunnable()` When the two separate clusters merge (resolve a split-brain), this method is called to return a `Runnable`, that will merge the clusters.
`Operation`	`prepareReplicationOperation(PartitionReplicationEvent event)` Returns an operation to replicate service data and/or state for a specific partition replica on another cluster member.
`void`	`reset()` Resets this service back to its initial state.
`void`	`rollbackMigration(PartitionMigrationEvent event)` Rollback the migration process for this service, on both source and destination members.
`void`	`shutdown(boolean terminate)` Shuts down this service.
`void`	`triggerAntiEntropy()`

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
  - INVOCATION_TRY_COUNT
```
public static final int INVOCATION_TRY_COUNT
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ReplicatedMapService
```
public ReplicatedMapService(NodeEngine nodeEngine)
```
- Method Detail
  - init
```
public void init(NodeEngine nodeEngine,
                 Properties properties)
```
    Description copied from interface: ManagedService
    
    Initializes this service.
    
    Specified by:
    
    init in interface ManagedService
    
    Parameters:
    
    nodeEngine - the NodeEngine that this service belongs to
    
    properties - the Properties (can be used to pass settings to the service)
  - reset
```
public void reset()
```
    Description copied from interface: ManagedService
    
    Resets this service back to its 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 service.
    TODO: what is the purpose of the terminate variable
    
    Specified by:
    
    shutdown in interface ManagedService
    
    Parameters:
    
    terminate - true to shut down this service
  - getLocalMapStatsImpl
```
public LocalReplicatedMapStatsImpl getLocalMapStatsImpl(String name)
```
  - createReplicatedMapStats
```
public LocalReplicatedMapStatsImpl createReplicatedMapStats(String name)
```
  - 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
  - dispatchEvent
```
public void dispatchEvent(Object event,
                          Object listener)
```
    Description copied from interface: EventPublishingService
    
    Notifies the service of a published event.
    
    Specified by:
    
    dispatchEvent in interface EventPublishingService<Object,Object>
    
    Parameters:
    
    event - the published event
    
    listener - the listener registered for this event
  - getReplicatedMapConfig
```
public ReplicatedMapConfig getReplicatedMapConfig(String name)
```
  - getReplicatedRecordStore
```
public ReplicatedRecordStore getReplicatedRecordStore(String name,
                                                      boolean create,
                                                      Object key)
```
  - getReplicatedRecordStore
```
public ReplicatedRecordStore getReplicatedRecordStore(String name,
                                                      boolean create,
                                                      int partitionId)
```
  - getAllReplicatedRecordStores
```
public Collection<ReplicatedRecordStore> getAllReplicatedRecordStores(String name)
```
  - initializeListeners
```
public void initializeListeners(String name)
```
  - getPartitionContainer
```
public PartitionContainer getPartitionContainer(int partitionId)
```
  - getNodeEngine
```
public NodeEngine getNodeEngine()
```
  - getEventPublishingService
```
public ReplicatedMapEventPublishingService getEventPublishingService()
```
  - prepareReplicationOperation
```
public Operation prepareReplicationOperation(PartitionReplicationEvent event)
```
    Description copied from interface: MigrationAwareService
    
    Returns an operation to replicate service data and/or state for a specific partition replica on another cluster member.
    This method will be called on source member whenever partitioning system requires to copy/replicate a partition replica. Returned operation will be executed on destination member. If operation fails by throwing exception, migration process will fail and will be rolled back.
    Returning null is allowed and means service does not have anything to replicate.
    
    Specified by:
    
    prepareReplicationOperation in interface MigrationAwareService
    
    Parameters:
    
    event - replication
    
    Returns:
    
    replication operation or null if nothing will be replicated
  - beforeMigration
```
public void beforeMigration(PartitionMigrationEvent event)
```
    Description copied from interface: MigrationAwareService
    
    Called before migration process starts, on both source and destination members.
    Service can take actions required before migration. Migration process will block until this method returns. If this method fails by throwing an exception, migration process for specific partition will fail and will be rolled back.
    
    Specified by:
    
    beforeMigration in interface MigrationAwareService
    
    Parameters:
    
    event - migration event
  - commitMigration
```
public void commitMigration(PartitionMigrationEvent event)
```
    Description copied from interface: MigrationAwareService
    
    Commits the migration process for this service, on both source and destination members. This method will be called after all replication operations are executed successfully on destination and master member receives success response from all participants.
    Commit is not expected to fail at this point, all exceptions will be suppressed and logged. Implementations of this method must be thread safe as this method may be called concurrently for different migrations on different partitions.
    
    Specified by:
    
    commitMigration in interface MigrationAwareService
    
    Parameters:
    
    event - migration event
  - rollbackMigration
```
public void rollbackMigration(PartitionMigrationEvent event)
```
    Description copied from interface: MigrationAwareService
    
    Rollback the migration process for this service, on both source and destination members. This method will be called when migration process fails at any moment. Reasons for failure may be an exception thrown on any migration step or failure(s) of any of the migration participants; either master or source or destination.
    Rollback is not expected to fail at this point, all exceptions will be suppressed and logged. Implementations of this method must be thread safe as this method may be called concurrently for different migrations on different partitions.
    
    Specified by:
    
    rollbackMigration in interface MigrationAwareService
    
    Parameters:
    
    event - migration event
  - prepareMergeRunnable
```
public Runnable prepareMergeRunnable()
```
    Description copied from interface: SplitBrainHandlerService
    
    When the two 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
  - getStats
```
public Map<String,LocalReplicatedMapStats> getStats()
```
    Description copied from interface: StatisticsAwareService
    
    Return the service statistics for the local instance.
    
    Specified by:
    
    getStats in interface StatisticsAwareService<LocalReplicatedMapStats>
    
    Returns:
    
    the statistics, grouped by distributed object name
  - getQuorumName
```
public String getQuorumName(String name)
```
    Description copied from interface: QuorumAwareService
    
    Gets the name of the quorum associated with specified operation name.
    
    Specified by:
    
    getQuorumName in interface QuorumAwareService
    
    Parameters:
    
    name - the operation name for which the quorum name is retured
    
    Returns:
    
    name of the associated quorum, null if there is no associated quorum
  - ensureQuorumPresent
```
public void ensureQuorumPresent(String distributedObjectName,
                                QuorumType requiredQuorumPermissionType)
```
  - triggerAntiEntropy
```
public void triggerAntiEntropy()
```
  - getMergePolicy
```
public Object getMergePolicy(String name)
```

Class ReplicatedMapService

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SERVICE_NAME

INVOCATION_TRY_COUNT

Constructor Detail

ReplicatedMapService

Method Detail

init

reset

shutdown

getLocalMapStatsImpl

createReplicatedMapStats

createDistributedObject

destroyDistributedObject

dispatchEvent

getReplicatedMapConfig

getReplicatedRecordStore

getReplicatedRecordStore

getAllReplicatedRecordStores

initializeListeners

getPartitionContainer

getNodeEngine

getEventPublishingService

prepareReplicationOperation

beforeMigration

commitMigration

rollbackMigration

prepareMergeRunnable

getStats

getQuorumName

ensureQuorumPresent

triggerAntiEntropy

getMergePolicy