org.neo4j.kernel
Class HAGraphDb

java.lang.Object
  org.neo4j.kernel.AbstractGraphDatabase
      org.neo4j.kernel.HAGraphDb

All Implemented Interfaces:

org.neo4j.com.Client.ConnectionLostHandler, GraphDatabaseService, ResponseReceiver

public class HAGraphDb
extends AbstractGraphDatabase
implements GraphDatabaseService, ResponseReceiver

Nested Class Summary

static class

HAGraphDb.BranchedDataPolicy

Field Summary

static String

COPY_FROM_MASTER_TEMP

Fields inherited from interface org.neo4j.com.Client.ConnectionLostHandler

NO_ACTION

Constructor Summary

HAGraphDb(String storeDir, Map<String,String> config)
Will instantiate its own ZooKeeper broker and ClusterClient

HAGraphDb(String storeDir, Map<String,String> config, BrokerFactory brokerFactory)
ONLY FOR TESTING Will instantiate its own ClusterClient

HAGraphDb(String storeDir, Map<String,String> config, BrokerFactory brokerFactory, ClusterClient clusterClient)
ONLY FOR TESTING

Method Summary

protected void	close()
Node	createNode()
Broker	getBroker()
Config	getConfig()
KernelData	getKernelData()
<T> Collection<T>	getManagementBeans(Class<T> type)
MasterServer	getMasterServerIfMaster()
Node	getNodeById(long id)
Node	getReferenceNode()
Relationship	getRelationshipById(long id)
org.neo4j.com.SlaveContext	getSlaveContext(int eventIdentifier) Returns a SlaveContext instance that has eventIdentifier as the event identifier.
void	handle(Exception e)
IndexManager	index()
void	internalShutdown(boolean rotateLogs)
boolean	isMaster()
void	newMaster(Exception e)
void	pullUpdates()
<T> T	receive(org.neo4j.com.Response<T> response)
void	reconnect(Exception e) Shuts down the broker, invalidating every connection to the zookeeper cluster and starts it again.
protected void	reevaluateMyself(org.neo4j.kernel.impl.nioneo.store.StoreId storeId)
KernelEventHandler	registerKernelEventHandler(KernelEventHandler handler)
<T> TransactionEventHandler<T>	registerTransactionEventHandler(TransactionEventHandler<T> handler)
void	shutdownBroker()
String	toString()
TransactionBuilder	tx()
KernelEventHandler	unregisterKernelEventHandler(KernelEventHandler handler)
<T> TransactionEventHandler<T>	unregisterTransactionEventHandler(TransactionEventHandler<T> handler)

Methods inherited from class org.neo4j.kernel.AbstractGraphDatabase

beginTx, createCaches, createStringLogger, getAllNodes, getManagementBean, getMessageLog, getRelationshipTypes, getSingleManagementBean, getStoreDir, isEphemeral, shutdown

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.neo4j.graphdb.GraphDatabaseService

beginTx, getAllNodes, getRelationshipTypes, shutdown

Field Detail

COPY_FROM_MASTER_TEMP

public static final String COPY_FROM_MASTER_TEMP

See Also:

Constant Field Values

Constructor Detail

HAGraphDb

public HAGraphDb(String storeDir,
                 Map<String,String> config)

Will instantiate its own ZooKeeper broker and ClusterClient

HAGraphDb

public HAGraphDb(String storeDir,
                 Map<String,String> config,
                 BrokerFactory brokerFactory)

ONLY FOR TESTING Will instantiate its own ClusterClient

HAGraphDb

public HAGraphDb(String storeDir,
                 Map<String,String> config,
                 BrokerFactory brokerFactory,
                 ClusterClient clusterClient)

ONLY FOR TESTING

Method Detail

getBroker

public Broker getBroker()

pullUpdates

public void pullUpdates()

getConfig

public Config getConfig()

Specified by:

getConfig in class AbstractGraphDatabase

getManagementBeans

public <T> Collection<T> getManagementBeans(Class<T> type)

Specified by:

getManagementBeans in class AbstractGraphDatabase

toString

public String toString()

Overrides:

toString in class AbstractGraphDatabase

reconnect

public void reconnect(Exception e)

Shuts down the broker, invalidating every connection to the zookeeper cluster and starts it again. Should be called in case a ConnectionExpired event is received, this is the equivalent of building the ZK connection from start. Also triggers a master reelect, to make sure that the state ZK ended up in during our absence is respected. The cluster manager is not used outside of startup where this call should not happen and also it doesn't keep a zoo client open - so is no reason to recreate it

Specified by:

reconnect in interface ResponseReceiver

reevaluateMyself

protected void reevaluateMyself(org.neo4j.kernel.impl.nioneo.store.StoreId storeId)

tx

public TransactionBuilder tx()

Specified by:

tx in class AbstractGraphDatabase

createNode

public Node createNode()

Specified by:

createNode in interface GraphDatabaseService

getNodeById

public Node getNodeById(long id)

Specified by:

getNodeById in interface GraphDatabaseService

getReferenceNode

public Node getReferenceNode()

Specified by:

getReferenceNode in interface GraphDatabaseService

getRelationshipById

public Relationship getRelationshipById(long id)

Specified by:

getRelationshipById in interface GraphDatabaseService

registerKernelEventHandler

public KernelEventHandler registerKernelEventHandler(KernelEventHandler handler)

Specified by:

registerKernelEventHandler in interface GraphDatabaseService

registerTransactionEventHandler

public <T> TransactionEventHandler<T> registerTransactionEventHandler(TransactionEventHandler<T> handler)

Specified by:

registerTransactionEventHandler in interface GraphDatabaseService

internalShutdown

public void internalShutdown(boolean rotateLogs)

close

protected void close()

Specified by:

close in class AbstractGraphDatabase

unregisterKernelEventHandler

public KernelEventHandler unregisterKernelEventHandler(KernelEventHandler handler)

Specified by:

unregisterKernelEventHandler in interface GraphDatabaseService

unregisterTransactionEventHandler

public <T> TransactionEventHandler<T> unregisterTransactionEventHandler(TransactionEventHandler<T> handler)

Specified by:

unregisterTransactionEventHandler in interface GraphDatabaseService

getSlaveContext

public org.neo4j.com.SlaveContext getSlaveContext(int eventIdentifier)

Description copied from interface: ResponseReceiver

Returns a SlaveContext instance that has eventIdentifier as the event identifier.

Specified by:

getSlaveContext in interface ResponseReceiver

Parameters:

eventIdentifier - The event identifier of the returned slave context

Returns:

The slave context

receive

public <T> T receive(org.neo4j.com.Response<T> response)

Specified by:

receive in interface ResponseReceiver

handle

public void handle(Exception e)

Specified by:

handle in interface org.neo4j.com.Client.ConnectionLostHandler

newMaster

public void newMaster(Exception e)

Specified by:

newMaster in interface ResponseReceiver

getMasterServerIfMaster

public MasterServer getMasterServerIfMaster()

isMaster

public boolean isMaster()

index

public IndexManager index()

Specified by:

index in interface GraphDatabaseService

shutdownBroker

public void shutdownBroker()

getKernelData

public KernelData getKernelData()

Specified by:

getKernelData in class AbstractGraphDatabase