org.neo4j.kernel.ha
Class MasterClient

java.lang.Object
  org.neo4j.kernel.ha.CommunicationProtocol
      org.neo4j.kernel.ha.MasterClient

All Implemented Interfaces:

org.jboss.netty.channel.ChannelPipelineFactory, Master

public class MasterClient
extends CommunicationProtocol
implements Master, org.jboss.netty.channel.ChannelPipelineFactory

The Master a slave should use to communicate with its master. It serializes requests and sends them to the master, more specifically MasterServer (which delegates to MasterImpl on the master side.

Nested Class Summary

Nested classes/interfaces inherited from class org.neo4j.kernel.ha.CommunicationProtocol

CommunicationProtocol.AcquireLockSerializer, CommunicationProtocol.ByteData, CommunicationProtocol.Deserializer<T>, CommunicationProtocol.MasterCaller<T>, CommunicationProtocol.ObjectSerializer<T>, CommunicationProtocol.RequestType, CommunicationProtocol.Serializer

Field Summary

static int	MAX_NUMBER_OF_CONCURRENT_REQUESTS_PER_CLIENT
static int	READ_RESPONSE_TIMEOUT_SECONDS

Fields inherited from class org.neo4j.kernel.ha.CommunicationProtocol

EMPTY_SERIALIZER, INTEGER_DESERIALIZER, LOCK_RESULT_DESERIALIZER, PORT, VOID_DESERIALIZER

Constructor Summary

MasterClient(Machine machine, String storeDir)

MasterClient(String hostNameOrIp, int port, String storeDir)

Method Summary

Response<LockResult>	acquireNodeReadLock(SlaveContext context, long... nodes)
Response<LockResult>	acquireNodeWriteLock(SlaveContext context, long... nodes)
Response<LockResult>	acquireRelationshipReadLock(SlaveContext context, long... relationships)
Response<LockResult>	acquireRelationshipWriteLock(SlaveContext context, long... relationships)
IdAllocation	allocateIds(IdType idType)
Response<Long>	commitSingleResourceTransaction(SlaveContext context, String resource, TransactionStream transactionStream)
Response<Integer>	createRelationshipType(SlaveContext context, String name)
Response<Void>	finishTransaction(SlaveContext context)
int	getMasterIdForCommittedTx(long txId)
org.jboss.netty.channel.ChannelPipeline	getPipeline()
Response<Void>	pullUpdates(SlaveContext context)
void	rollbackOngoingTransactions(SlaveContext context)
void	shutdown()

Methods inherited from class org.neo4j.kernel.ha.CommunicationProtocol

handleRequest, readIdAllocation, readString, readTransactionStreams, writeSlaveContext, writeString, writeTransactionStream

Methods inherited from class java.lang.Object

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

Field Detail

MAX_NUMBER_OF_CONCURRENT_REQUESTS_PER_CLIENT

public static final int MAX_NUMBER_OF_CONCURRENT_REQUESTS_PER_CLIENT

See Also:

Constant Field Values

READ_RESPONSE_TIMEOUT_SECONDS

public static final int READ_RESPONSE_TIMEOUT_SECONDS

See Also:

Constant Field Values

Constructor Detail

MasterClient

public MasterClient(String hostNameOrIp,
                    int port,
                    String storeDir)

MasterClient

public MasterClient(Machine machine,
                    String storeDir)

Method Detail

allocateIds

public IdAllocation allocateIds(IdType idType)

Specified by:

allocateIds in interface Master

createRelationshipType

public Response<Integer> createRelationshipType(SlaveContext context,
                                                String name)

Specified by:

createRelationshipType in interface Master

acquireNodeWriteLock

public Response<LockResult> acquireNodeWriteLock(SlaveContext context,
                                                 long... nodes)

Specified by:

acquireNodeWriteLock in interface Master

acquireNodeReadLock

public Response<LockResult> acquireNodeReadLock(SlaveContext context,
                                                long... nodes)

Specified by:

acquireNodeReadLock in interface Master

acquireRelationshipWriteLock

public Response<LockResult> acquireRelationshipWriteLock(SlaveContext context,
                                                         long... relationships)

Specified by:

acquireRelationshipWriteLock in interface Master

acquireRelationshipReadLock

public Response<LockResult> acquireRelationshipReadLock(SlaveContext context,
                                                        long... relationships)

Specified by:

acquireRelationshipReadLock in interface Master

commitSingleResourceTransaction

public Response<Long> commitSingleResourceTransaction(SlaveContext context,
                                                      String resource,
                                                      TransactionStream transactionStream)

Specified by:

commitSingleResourceTransaction in interface Master

finishTransaction

public Response<Void> finishTransaction(SlaveContext context)

Specified by:

finishTransaction in interface Master

rollbackOngoingTransactions

public void rollbackOngoingTransactions(SlaveContext context)

pullUpdates

public Response<Void> pullUpdates(SlaveContext context)

Specified by:

pullUpdates in interface Master

getMasterIdForCommittedTx

public int getMasterIdForCommittedTx(long txId)

Specified by:

getMasterIdForCommittedTx in interface Master

getPipeline

public org.jboss.netty.channel.ChannelPipeline getPipeline()
                                                    throws Exception

Specified by:

getPipeline in interface org.jboss.netty.channel.ChannelPipelineFactory

Throws:

Exception

shutdown

public void shutdown()