org.neo4j.kernel.ha
Class MasterClient

java.lang.Object
  org.neo4j.com.Client<Master>
      org.neo4j.kernel.ha.MasterClient

All Implemented Interfaces:

org.jboss.netty.channel.ChannelPipelineFactory, Master

public class MasterClient
extends Client<Master>
implements Master

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

protected static class	MasterClient.AcquireLockSerializer
static class	MasterClient.HaRequestType

Field Summary

protected static Deserializer<LockResult>

LOCK_RESULT_DESERIALIZER

Fields inherited from class org.neo4j.com.Client

DEFAULT_MAX_NUMBER_OF_CONCURRENT_REQUESTS_PER_CLIENT, DEFAULT_READ_RESPONSE_TIMEOUT_SECONDS

Constructor Summary

MasterClient(Machine machine, org.neo4j.graphdb.GraphDatabaseService graphDb)

MasterClient(String hostNameOrIp, int port, org.neo4j.graphdb.GraphDatabaseService graphDb)

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)
Response<IdAllocation>	allocateIds(org.neo4j.kernel.IdType idType)
Response<Long>	commitSingleResourceTransaction(SlaveContext context, String resource, TxExtractor txGetter)
Response<Void>	copyStore(SlaveContext context, StoreWriter writer)
Response<Integer>	createRelationshipType(SlaveContext context, String name)
Response<Void>	finishTransaction(SlaveContext context)
Response<Integer>	getMasterIdForCommittedTx(long txId)
Response<Void>	pullUpdates(SlaveContext context)
protected static IdAllocation	readIdAllocation(org.jboss.netty.buffer.ChannelBuffer buffer)
void	rollbackOngoingTransactions(SlaveContext context)
protected boolean	shouldCheckStoreId(RequestType<Master> type)

Methods inherited from class org.neo4j.com.Client

getMyStoreId, getPipeline, readTransactionStreamHeader, readTransactionStreams, sendRequest, shutdown, writeContext

Methods inherited from class java.lang.Object

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

Field Detail

LOCK_RESULT_DESERIALIZER

protected static final Deserializer<LockResult> LOCK_RESULT_DESERIALIZER

Constructor Detail

MasterClient

public MasterClient(String hostNameOrIp,
                    int port,
                    org.neo4j.graphdb.GraphDatabaseService graphDb)

MasterClient

public MasterClient(Machine machine,
                    org.neo4j.graphdb.GraphDatabaseService graphDb)

Method Detail

shouldCheckStoreId

protected boolean shouldCheckStoreId(RequestType<Master> type)

Overrides:

shouldCheckStoreId in class Client<Master>

allocateIds

public Response<IdAllocation> allocateIds(org.neo4j.kernel.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,
                                                      TxExtractor txGetter)

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 Response<Integer> getMasterIdForCommittedTx(long txId)

Specified by:

getMasterIdForCommittedTx in interface Master

copyStore

public Response<Void> copyStore(SlaveContext context,
                                StoreWriter writer)

Specified by:

copyStore in interface Master

readIdAllocation

protected static IdAllocation readIdAllocation(org.jboss.netty.buffer.ChannelBuffer buffer)