org.neo4j.kernel.ha.com.master

Class MasterImpl

java.lang.Object

org.neo4j.kernel.lifecycle.LifecycleAdapter

org.neo4j.kernel.ha.com.master.MasterImpl

All Implemented Interfaces:

Master, org.neo4j.kernel.lifecycle.Lifecycle

public class MasterImpl
extends org.neo4j.kernel.lifecycle.LifecycleAdapter
implements Master

This is the real master code that executes on a master. The actual communication over network happens in MasterClient and MasterServer.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MasterImpl.Monitor
static interface	MasterImpl.SPI

Nested classes/interfaces inherited from interface org.neo4j.kernel.lifecycle.Lifecycle

org.neo4j.kernel.lifecycle.Lifecycle.Delegate

Constructor Summary

Constructors

Constructor and Description
MasterImpl(MasterImpl.SPI spi, ConversationManager conversationManager, MasterImpl.Monitor monitor, org.neo4j.kernel.configuration.Config config)

Method Summary

Modifier and Type	Method and Description
org.neo4j.com.Response<LockResult>	acquireExclusiveLock(org.neo4j.com.RequestContext context, org.neo4j.storageengine.api.lock.ResourceType type, long... resourceIds)
org.neo4j.com.Response<LockResult>	acquireSharedLock(org.neo4j.com.RequestContext context, org.neo4j.storageengine.api.lock.ResourceType type, long... resourceIds)
org.neo4j.com.Response<IdAllocation>	allocateIds(org.neo4j.com.RequestContext context, org.neo4j.kernel.impl.store.id.IdType idType)
org.neo4j.com.Response<Long>	commit(org.neo4j.com.RequestContext context, org.neo4j.kernel.impl.transaction.TransactionRepresentation preparedTransaction) Calling this method will validate, persist to log and apply changes to stores on the master.
org.neo4j.com.Response<Void>	copyStore(org.neo4j.com.RequestContext requestContext, org.neo4j.com.storecopy.StoreWriter writer)
org.neo4j.com.Response<Integer>	createLabel(org.neo4j.com.RequestContext context, String name)
org.neo4j.com.Response<Integer>	createPropertyKey(org.neo4j.com.RequestContext context, String name)
org.neo4j.com.Response<Integer>	createRelationshipType(org.neo4j.com.RequestContext context, String name)
org.neo4j.com.Response<Void>	endLockSession(org.neo4j.com.RequestContext context, boolean success) Calling this will end the current lock session (identified by the RequestContext), releasing all cluster-global locks held.
Map<Integer,Collection<org.neo4j.com.RequestContext>>	getOngoingTransactions()
org.neo4j.com.Response<HandshakeResult>	handshake(long txId, org.neo4j.kernel.impl.store.StoreId storeId) Gets the master id for a given txId, also a checksum for that tx.
org.neo4j.com.Response<Void>	newLockSession(org.neo4j.com.RequestContext context) Calling this method will create a new session with the cluster lock manager and associate that session with the provided RequestContext.
org.neo4j.com.Response<Void>	pullUpdates(org.neo4j.com.RequestContext context)
void	start()
void	stop()

Methods inherited from class org.neo4j.kernel.lifecycle.LifecycleAdapter

init, shutdown

Methods inherited from class java.lang.Object

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

Constructor Detail

MasterImpl

public MasterImpl(MasterImpl.SPI spi,
                  ConversationManager conversationManager,
                  MasterImpl.Monitor monitor,
                  org.neo4j.kernel.configuration.Config config)

Method Detail

start

public void start()
           throws Throwable

Specified by:

start in interface org.neo4j.kernel.lifecycle.Lifecycle

Overrides:

start in class org.neo4j.kernel.lifecycle.LifecycleAdapter

Throws:

Throwable

stop

public void stop()

Specified by:

stop in interface org.neo4j.kernel.lifecycle.Lifecycle

Overrides:

stop in class org.neo4j.kernel.lifecycle.LifecycleAdapter

allocateIds

public org.neo4j.com.Response<IdAllocation> allocateIds(org.neo4j.com.RequestContext context,
                                                        org.neo4j.kernel.impl.store.id.IdType idType)

Specified by:

allocateIds in interface Master

commit

public org.neo4j.com.Response<Long> commit(org.neo4j.com.RequestContext context,
                                           org.neo4j.kernel.impl.transaction.TransactionRepresentation preparedTransaction)
                                    throws IOException,
                                           org.neo4j.kernel.api.exceptions.TransactionFailureException

Description copied from interface: Master

Calling this method will validate, persist to log and apply changes to stores on the master.

Specified by:

commit in interface Master

Throws:

IOException

org.neo4j.kernel.api.exceptions.TransactionFailureException

createRelationshipType

public org.neo4j.com.Response<Integer> createRelationshipType(org.neo4j.com.RequestContext context,
                                                              String name)

Specified by:

createRelationshipType in interface Master

createPropertyKey

public org.neo4j.com.Response<Integer> createPropertyKey(org.neo4j.com.RequestContext context,
                                                         String name)

Specified by:

createPropertyKey in interface Master

createLabel

public org.neo4j.com.Response<Integer> createLabel(org.neo4j.com.RequestContext context,
                                                   String name)

Specified by:

createLabel in interface Master

pullUpdates

public org.neo4j.com.Response<Void> pullUpdates(org.neo4j.com.RequestContext context)

Specified by:

pullUpdates in interface Master

handshake

public org.neo4j.com.Response<HandshakeResult> handshake(long txId,
                                                         org.neo4j.kernel.impl.store.StoreId storeId)

Description copied from interface: Master

Gets the master id for a given txId, also a checksum for that tx.

Specified by:

handshake in interface Master

Parameters:

txId - the transaction id to get the data for.

storeId - clients store id.

Returns:

the master id for a given txId, also a checksum for that tx.

copyStore

public org.neo4j.com.Response<Void> copyStore(org.neo4j.com.RequestContext requestContext,
                                              org.neo4j.com.storecopy.StoreWriter writer)

Specified by:

copyStore in interface Master

newLockSession

public org.neo4j.com.Response<Void> newLockSession(org.neo4j.com.RequestContext context)
                                            throws org.neo4j.kernel.api.exceptions.TransactionFailureException

Description copied from interface: Master

Calling this method will create a new session with the cluster lock manager and associate that session with the provided RequestContext.

Specified by:

newLockSession in interface Master

Throws:

org.neo4j.kernel.api.exceptions.TransactionFailureException

endLockSession

public org.neo4j.com.Response<Void> endLockSession(org.neo4j.com.RequestContext context,
                                                   boolean success)

Description copied from interface: Master

Calling this will end the current lock session (identified by the RequestContext), releasing all cluster-global locks held.

Specified by:

endLockSession in interface Master

acquireExclusiveLock

public org.neo4j.com.Response<LockResult> acquireExclusiveLock(org.neo4j.com.RequestContext context,
                                                               org.neo4j.storageengine.api.lock.ResourceType type,
                                                               long... resourceIds)

Specified by:

acquireExclusiveLock in interface Master

acquireSharedLock

public org.neo4j.com.Response<LockResult> acquireSharedLock(org.neo4j.com.RequestContext context,
                                                            org.neo4j.storageengine.api.lock.ResourceType type,
                                                            long... resourceIds)

Specified by:

acquireSharedLock in interface Master

getOngoingTransactions

public Map<Integer,Collection<org.neo4j.com.RequestContext>> getOngoingTransactions()