org.neo4j.kernel.ha
Class MasterImpl

java.lang.Object
  org.neo4j.kernel.ha.MasterImpl

All Implemented Interfaces:

Master

public class MasterImpl
extends Object
implements Master

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

Field Summary

static int

UNFINISHED_TRANSACTION_CLEANUP_DELAY

Constructor Summary

MasterImpl(org.neo4j.kernel.GraphDatabaseAPI db, int timeOut)

Method Summary

org.neo4j.com.Response<LockResult>	acquireGraphReadLock(org.neo4j.com.SlaveContext context)
org.neo4j.com.Response<LockResult>	acquireGraphWriteLock(org.neo4j.com.SlaveContext context)
org.neo4j.com.Response<LockResult>	acquireIndexReadLock(org.neo4j.com.SlaveContext context, String index, String key)
org.neo4j.com.Response<LockResult>	acquireIndexWriteLock(org.neo4j.com.SlaveContext context, String index, String key)
org.neo4j.com.Response<LockResult>	acquireNodeReadLock(org.neo4j.com.SlaveContext context, long... nodes)
org.neo4j.com.Response<LockResult>	acquireNodeWriteLock(org.neo4j.com.SlaveContext context, long... nodes)
org.neo4j.com.Response<LockResult>	acquireRelationshipReadLock(org.neo4j.com.SlaveContext context, long... relationships)
org.neo4j.com.Response<LockResult>	acquireRelationshipWriteLock(org.neo4j.com.SlaveContext context, long... relationships)
org.neo4j.com.Response<IdAllocation>	allocateIds(org.neo4j.kernel.IdType idType)
org.neo4j.com.Response<Long>	commitSingleResourceTransaction(org.neo4j.com.SlaveContext context, String resource, org.neo4j.com.TxExtractor txGetter)
org.neo4j.com.Response<Void>	copyStore(org.neo4j.com.SlaveContext context, org.neo4j.com.StoreWriter writer)
org.neo4j.com.Response<Void>	copyTransactions(org.neo4j.com.SlaveContext context, String dsName, long startTxId, long endTxId)
org.neo4j.com.Response<Integer>	createRelationshipType(org.neo4j.com.SlaveContext context, String name)
org.neo4j.com.Response<Void>	finishTransaction(org.neo4j.com.SlaveContext context, boolean success)
org.neo4j.kernel.GraphDatabaseAPI	getGraphDb()
org.neo4j.com.Response<org.neo4j.helpers.Pair<Integer,Long>>	getMasterIdForCommittedTx(long txId, org.neo4j.kernel.impl.nioneo.store.StoreId storeId) Gets the master id for a given txId, also a checksum for that tx.
Map<Integer,Collection<org.neo4j.com.SlaveContext>>	getOngoingTransactions()
org.neo4j.com.Response<Void>	initializeTx(org.neo4j.com.SlaveContext context) Called when the first write operation of lock is performed for a transaction.
org.neo4j.com.Response<Void>	pullUpdates(org.neo4j.com.SlaveContext context)
void	shutdown()

Methods inherited from class java.lang.Object

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

Field Detail

UNFINISHED_TRANSACTION_CLEANUP_DELAY

public static final int UNFINISHED_TRANSACTION_CLEANUP_DELAY

See Also:

Constant Field Values

Constructor Detail

MasterImpl

public MasterImpl(org.neo4j.kernel.GraphDatabaseAPI db,
                  int timeOut)

Method Detail

getGraphDb

public org.neo4j.kernel.GraphDatabaseAPI getGraphDb()

initializeTx

public org.neo4j.com.Response<Void> initializeTx(org.neo4j.com.SlaveContext context)

Description copied from interface: Master

Called when the first write operation of lock is performed for a transaction.

Specified by:

initializeTx in interface Master

acquireNodeReadLock

public org.neo4j.com.Response<LockResult> acquireNodeReadLock(org.neo4j.com.SlaveContext context,
                                                              long... nodes)

Specified by:

acquireNodeReadLock in interface Master

acquireNodeWriteLock

public org.neo4j.com.Response<LockResult> acquireNodeWriteLock(org.neo4j.com.SlaveContext context,
                                                               long... nodes)

Specified by:

acquireNodeWriteLock in interface Master

acquireRelationshipReadLock

public org.neo4j.com.Response<LockResult> acquireRelationshipReadLock(org.neo4j.com.SlaveContext context,
                                                                      long... relationships)

Specified by:

acquireRelationshipReadLock in interface Master

acquireRelationshipWriteLock

public org.neo4j.com.Response<LockResult> acquireRelationshipWriteLock(org.neo4j.com.SlaveContext context,
                                                                       long... relationships)

Specified by:

acquireRelationshipWriteLock in interface Master

acquireGraphReadLock

public org.neo4j.com.Response<LockResult> acquireGraphReadLock(org.neo4j.com.SlaveContext context)

Specified by:

acquireGraphReadLock in interface Master

acquireGraphWriteLock

public org.neo4j.com.Response<LockResult> acquireGraphWriteLock(org.neo4j.com.SlaveContext context)

Specified by:

acquireGraphWriteLock in interface Master

allocateIds

public org.neo4j.com.Response<IdAllocation> allocateIds(org.neo4j.kernel.IdType idType)

Specified by:

allocateIds in interface Master

commitSingleResourceTransaction

public org.neo4j.com.Response<Long> commitSingleResourceTransaction(org.neo4j.com.SlaveContext context,
                                                                    String resource,
                                                                    org.neo4j.com.TxExtractor txGetter)

Specified by:

commitSingleResourceTransaction in interface Master

finishTransaction

public org.neo4j.com.Response<Void> finishTransaction(org.neo4j.com.SlaveContext context,
                                                      boolean success)

Specified by:

finishTransaction in interface Master

createRelationshipType

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

Specified by:

createRelationshipType in interface Master

pullUpdates

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

Specified by:

pullUpdates in interface Master

getMasterIdForCommittedTx

public org.neo4j.com.Response<org.neo4j.helpers.Pair<Integer,Long>> getMasterIdForCommittedTx(long txId,
                                                                                              org.neo4j.kernel.impl.nioneo.store.StoreId storeId)

Description copied from interface: Master

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

Specified by:

getMasterIdForCommittedTx 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.SlaveContext context,
                                              org.neo4j.com.StoreWriter writer)

Specified by:

copyStore in interface Master

copyTransactions

public org.neo4j.com.Response<Void> copyTransactions(org.neo4j.com.SlaveContext context,
                                                     String dsName,
                                                     long startTxId,
                                                     long endTxId)

Specified by:

copyTransactions in interface Master

shutdown

public void shutdown()

Specified by:

shutdown in interface Master

acquireIndexReadLock

public org.neo4j.com.Response<LockResult> acquireIndexReadLock(org.neo4j.com.SlaveContext context,
                                                               String index,
                                                               String key)

Specified by:

acquireIndexReadLock in interface Master

acquireIndexWriteLock

public org.neo4j.com.Response<LockResult> acquireIndexWriteLock(org.neo4j.com.SlaveContext context,
                                                                String index,
                                                                String key)

Specified by:

acquireIndexWriteLock in interface Master

getOngoingTransactions

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