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.

Field Summary

Fields

Modifier and Type	Field and Description
static int	UNFINISHED_TRANSACTION_CLEANUP_DELAY

Constructor Summary

Constructors

Constructor and Description
MasterImpl(org.neo4j.kernel.GraphDatabaseAPI db, org.neo4j.kernel.logging.Logging logging, org.neo4j.kernel.configuration.Config config)

Method Summary

Methods

Modifier and Type	Method and Description
org.neo4j.com.Response<LockResult>	acquireGraphReadLock(org.neo4j.com.RequestContext context)
org.neo4j.com.Response<LockResult>	acquireGraphWriteLock(org.neo4j.com.RequestContext context)
org.neo4j.com.Response<LockResult>	acquireIndexReadLock(org.neo4j.com.RequestContext context, String index, String key)
org.neo4j.com.Response<LockResult>	acquireIndexWriteLock(org.neo4j.com.RequestContext context, String index, String key)
org.neo4j.com.Response<LockResult>	acquireNodeReadLock(org.neo4j.com.RequestContext context, long... nodes)
org.neo4j.com.Response<LockResult>	acquireNodeWriteLock(org.neo4j.com.RequestContext context, long... nodes)
org.neo4j.com.Response<LockResult>	acquireRelationshipReadLock(org.neo4j.com.RequestContext context, long... relationships)
org.neo4j.com.Response<LockResult>	acquireRelationshipWriteLock(org.neo4j.com.RequestContext context, long... relationships)
org.neo4j.com.Response<LockResult>	acquireSchemaReadLock(org.neo4j.com.RequestContext context)
org.neo4j.com.Response<LockResult>	acquireSchemaWriteLock(org.neo4j.com.RequestContext context)
org.neo4j.com.Response<IdAllocation>	allocateIds(org.neo4j.kernel.IdType idType)
org.neo4j.com.Response<Long>	commitSingleResourceTransaction(org.neo4j.com.RequestContext context, String resource, org.neo4j.com.TxExtractor txGetter)
org.neo4j.com.Response<Void>	copyStore(org.neo4j.com.RequestContext context, org.neo4j.com.StoreWriter writer)
org.neo4j.com.Response<Void>	copyTransactions(org.neo4j.com.RequestContext context, String dsName, long startTxId, long endTxId)
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>	finishTransaction(org.neo4j.com.RequestContext context, boolean success)
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.RequestContext>>	getOngoingTransactions()
org.neo4j.com.Response<Void>	initializeTx(org.neo4j.com.RequestContext context) Called when the first write operation of lock is performed for a transaction.
org.neo4j.com.Response<Void>	pullUpdates(org.neo4j.com.RequestContext context)
org.neo4j.com.Response<Void>	pushTransaction(org.neo4j.com.RequestContext context, String resourceName, long tx)
void	start()
void	stop()

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

init, 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,
          org.neo4j.kernel.logging.Logging logging,
          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

initializeTx

public org.neo4j.com.Response<Void> initializeTx(org.neo4j.com.RequestContext 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.RequestContext context,
                                                     long... nodes)

Specified by:

acquireNodeReadLock in interface Master

acquireNodeWriteLock

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

Specified by:

acquireNodeWriteLock in interface Master

acquireRelationshipReadLock

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

Specified by:

acquireRelationshipReadLock in interface Master

acquireRelationshipWriteLock

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

Specified by:

acquireRelationshipWriteLock in interface Master

acquireGraphReadLock

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

Specified by:

acquireGraphReadLock in interface Master

acquireGraphWriteLock

public org.neo4j.com.Response<LockResult> acquireGraphWriteLock(org.neo4j.com.RequestContext 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.RequestContext 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.RequestContext context,
                                             boolean success)

Specified by:

finishTransaction in interface Master

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

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.RequestContext context,
                                     org.neo4j.com.StoreWriter writer)

Specified by:

copyStore in interface Master

copyTransactions

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

Specified by:

copyTransactions in interface Master

acquireIndexReadLock

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

Specified by:

acquireIndexReadLock in interface Master

acquireIndexWriteLock

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

Specified by:

acquireIndexWriteLock in interface Master

acquireSchemaReadLock

public org.neo4j.com.Response<LockResult> acquireSchemaReadLock(org.neo4j.com.RequestContext context)

Specified by:

acquireSchemaReadLock in interface Master

acquireSchemaWriteLock

public org.neo4j.com.Response<LockResult> acquireSchemaWriteLock(org.neo4j.com.RequestContext context)

Specified by:

acquireSchemaWriteLock in interface Master

pushTransaction

public org.neo4j.com.Response<Void> pushTransaction(org.neo4j.com.RequestContext context,
                                           String resourceName,
                                           long tx)

Specified by:

pushTransaction in interface Master

getOngoingTransactions

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