org.neo4j.kernel
Class InternalAbstractGraphDatabase

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

All Implemented Interfaces:

GraphDatabaseService, GraphDatabaseAPI

Direct Known Subclasses:

EmbeddedGraphDatabase, EmbeddedReadOnlyGraphDatabase

public abstract class InternalAbstractGraphDatabase
extends AbstractGraphDatabase
implements GraphDatabaseService, GraphDatabaseAPI

Base implementation of GraphDatabaseService. Responsible for creating services, handling dependencies between them, and lifecycle management of these.

Nested Class Summary

static class	InternalAbstractGraphDatabase.Configuration
protected class	InternalAbstractGraphDatabase.DefaultKernelData

Field Summary

protected org.neo4j.kernel.impl.core.Caches	caches
protected Config	config
protected DependencyResolver	dependencyResolver
protected DiagnosticsManager	diagnosticsManager
protected KernelData	extensions
protected org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction	fileSystem
protected Guard	guard
protected IdGeneratorFactory	idGeneratorFactory
protected org.neo4j.kernel.IndexManagerImpl	indexManager
protected org.neo4j.kernel.impl.index.IndexStore	indexStore
protected KernelEventHandlers	kernelEventHandlers
protected org.neo4j.kernel.impl.core.KernelPanicEventGenerator	kernelPanicEventGenerator
protected LifeSupport	life
protected org.neo4j.kernel.impl.transaction.LockManager	lockManager
protected org.neo4j.kernel.impl.transaction.xaframework.LogBufferFactory	logBufferFactory
protected Logging	logging
protected org.neo4j.kernel.impl.util.StringLogger	msgLog
protected org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource	neoDataSource
protected org.neo4j.kernel.NodeAutoIndexerImpl	nodeAutoIndexer
protected org.neo4j.kernel.impl.core.NodeManager	nodeManager
protected Map<String,String>	params
protected org.neo4j.kernel.impl.persistence.PersistenceManager	persistenceManager
protected org.neo4j.kernel.impl.nioneo.xa.NioNeoDbPersistenceSource	persistenceSource
protected org.neo4j.kernel.impl.core.PropertyIndexManager	propertyIndexManager
protected org.neo4j.kernel.impl.transaction.xaframework.RecoveryVerifier	recoveryVerifier
protected org.neo4j.kernel.impl.core.RelationshipTypeCreator	relationshipTypeCreator
protected org.neo4j.kernel.impl.core.RelationshipTypeHolder	relationshipTypeHolder
protected org.neo4j.kernel.RelationshipAutoIndexerImpl	relAutoIndexer
protected org.neo4j.kernel.impl.transaction.TransactionStateFactory	stateFactory
protected File	storeDir
protected org.neo4j.kernel.impl.nioneo.store.StoreFactory	storeFactory
protected org.neo4j.kernel.impl.nioneo.store.StoreId	storeId
protected StoreLockerLifecycleAdapter	storeLocker
protected org.neo4j.kernel.impl.core.TxEventSyncHookFactory	syncHook
protected TransactionEventHandlers	transactionEventHandlers
protected org.neo4j.kernel.impl.transaction.TxHook	txHook
protected org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator	txIdGenerator
protected org.neo4j.kernel.impl.transaction.AbstractTransactionManager	txManager
protected org.neo4j.kernel.impl.transaction.XaDataSourceManager	xaDataSourceManager
protected org.neo4j.kernel.impl.transaction.xaframework.XaFactory	xaFactory

Constructor Summary

protected

InternalAbstractGraphDatabase(String storeDir, Map<String,String> params, Iterable<Class<?>> settingsClasses, Iterable<IndexProvider> indexProviders, Iterable<KernelExtensionFactory<?>> kernelExtensions, Iterable<org.neo4j.kernel.impl.cache.CacheProvider> cacheProviders, Iterable<org.neo4j.kernel.impl.transaction.xaframework.TransactionInterceptorProvider> transactionInterceptorProviders)

Method Summary

Transaction	beginTx() Starts a new transaction and associates it with the current thread.
protected Transaction	beginTx(org.neo4j.kernel.impl.transaction.xaframework.ForceMode forceMode)
protected void	create()
protected org.neo4j.kernel.impl.core.Caches	createCaches()
protected org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction	createFileSystemAbstraction()
protected IdGeneratorFactory	createIdGeneratorFactory()
protected KernelData	createKernelData()
protected org.neo4j.kernel.impl.transaction.LockManager	createLockManager()
protected Logging	createLogging()
protected void	createNeoDataSource()
Node	createNode() Creates a new node.
protected org.neo4j.kernel.impl.core.NodeProxy.NodeLookup	createNodeLookup()
protected org.neo4j.kernel.impl.transaction.xaframework.RecoveryVerifier	createRecoveryVerifier()
protected org.neo4j.kernel.impl.core.RelationshipProxy.RelationshipLookups	createRelationshipLookups()
protected org.neo4j.kernel.impl.core.RelationshipTypeCreator	createRelationshipTypeCreator()
protected org.neo4j.kernel.impl.nioneo.store.StoreFactory	createStoreFactory()
protected org.neo4j.kernel.impl.transaction.TransactionStateFactory	createTransactionStateFactory()
protected org.neo4j.kernel.impl.transaction.TxHook	createTxHook()
protected org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator	createTxIdGenerator()
protected org.neo4j.kernel.impl.transaction.XaDataSourceManager	createXaDataSourceManager()
protected void	doAfterRecoveryAndStartup()
boolean	equals(Object o)
Iterable<Node>	getAllNodes() Returns all nodes in the graph.
Config	getConfig()
DependencyResolver	getDependencyResolver()
DiagnosticsManager	getDiagnosticsManager()
Guard	getGuard()
IdGeneratorFactory	getIdGeneratorFactory()
KernelData	getKernelData()
org.neo4j.kernel.impl.core.KernelPanicEventGenerator	getKernelPanicGenerator()
org.neo4j.kernel.impl.transaction.LockManager	getLockManager()
org.neo4j.kernel.impl.util.StringLogger	getMessageLog()
Node	getNodeById(long id) Looks up a node by id.
org.neo4j.kernel.impl.core.NodeManager	getNodeManager()
org.neo4j.kernel.impl.persistence.PersistenceSource	getPersistenceSource()
Node	getReferenceNode() Returns the reference node, which is a "starting point" in the node space.
Relationship	getRelationshipById(long id) Looks up a relationship by id.
org.neo4j.kernel.impl.core.RelationshipTypeHolder	getRelationshipTypeHolder()
Iterable<RelationshipType>	getRelationshipTypes() Returns all relationship types currently in the underlying store.
String	getStoreDir()
org.neo4j.kernel.impl.nioneo.store.StoreId	getStoreId()
org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator	getTxIdGenerator()
TransactionManager	getTxManager()
org.neo4j.kernel.impl.transaction.XaDataSourceManager	getXaDataSourceManager()
int	hashCode()
IndexManager	index() Returns the IndexManager paired with this graph database service and is the entry point for managing indexes coupled with this database.
protected boolean	isEphemeral()
KernelEventHandler	registerKernelEventHandler(KernelEventHandler handler) Registers handler as a handler for kernel events which are generated from different places in the lifecycle of the kernel.
protected void	registerRecovery()
<T> TransactionEventHandler<T>	registerTransactionEventHandler(TransactionEventHandler<T> handler) Registers handler as a handler for transaction events which are generated from different places in the lifecycle of each transaction.
protected void	run()
void	shutdown() Shuts down Neo4j.
String	toString()
boolean	transactionRunning()
TransactionBuilder	tx()
KernelEventHandler	unregisterKernelEventHandler(KernelEventHandler handler) Unregisters handler from the list of kernel event handlers.
<T> TransactionEventHandler<T>	unregisterTransactionEventHandler(TransactionEventHandler<T> handler) Unregisters handler from the list of transaction event handlers.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

storeDir

protected File storeDir

params

protected Map<String,String> params

storeId

protected org.neo4j.kernel.impl.nioneo.store.StoreId storeId

config

protected Config config

dependencyResolver

protected DependencyResolver dependencyResolver

logging

protected Logging logging

msgLog

protected org.neo4j.kernel.impl.util.StringLogger msgLog

storeLocker

protected StoreLockerLifecycleAdapter storeLocker

kernelEventHandlers

protected KernelEventHandlers kernelEventHandlers

transactionEventHandlers

protected TransactionEventHandlers transactionEventHandlers

relationshipTypeHolder

protected org.neo4j.kernel.impl.core.RelationshipTypeHolder relationshipTypeHolder

nodeManager

protected org.neo4j.kernel.impl.core.NodeManager nodeManager

indexManager

protected org.neo4j.kernel.IndexManagerImpl indexManager

kernelPanicEventGenerator

protected org.neo4j.kernel.impl.core.KernelPanicEventGenerator kernelPanicEventGenerator

txHook

protected org.neo4j.kernel.impl.transaction.TxHook txHook

fileSystem

protected org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction fileSystem

xaDataSourceManager

protected org.neo4j.kernel.impl.transaction.XaDataSourceManager xaDataSourceManager

lockManager

protected org.neo4j.kernel.impl.transaction.LockManager lockManager

idGeneratorFactory

protected IdGeneratorFactory idGeneratorFactory

relationshipTypeCreator

protected org.neo4j.kernel.impl.core.RelationshipTypeCreator relationshipTypeCreator

persistenceSource

protected org.neo4j.kernel.impl.nioneo.xa.NioNeoDbPersistenceSource persistenceSource

syncHook

protected org.neo4j.kernel.impl.core.TxEventSyncHookFactory syncHook

persistenceManager

protected org.neo4j.kernel.impl.persistence.PersistenceManager persistenceManager

propertyIndexManager

protected org.neo4j.kernel.impl.core.PropertyIndexManager propertyIndexManager

indexStore

protected org.neo4j.kernel.impl.index.IndexStore indexStore

logBufferFactory

protected org.neo4j.kernel.impl.transaction.xaframework.LogBufferFactory logBufferFactory

txManager

protected org.neo4j.kernel.impl.transaction.AbstractTransactionManager txManager

txIdGenerator

protected org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator txIdGenerator

storeFactory

protected org.neo4j.kernel.impl.nioneo.store.StoreFactory storeFactory

xaFactory

protected org.neo4j.kernel.impl.transaction.xaframework.XaFactory xaFactory

diagnosticsManager

protected DiagnosticsManager diagnosticsManager

neoDataSource

protected org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource neoDataSource

recoveryVerifier

protected org.neo4j.kernel.impl.transaction.xaframework.RecoveryVerifier recoveryVerifier

guard

protected Guard guard

nodeAutoIndexer

protected org.neo4j.kernel.NodeAutoIndexerImpl nodeAutoIndexer

relAutoIndexer

protected org.neo4j.kernel.RelationshipAutoIndexerImpl relAutoIndexer

extensions

protected KernelData extensions

caches

protected org.neo4j.kernel.impl.core.Caches caches

life

protected final LifeSupport life

stateFactory

protected org.neo4j.kernel.impl.transaction.TransactionStateFactory stateFactory

Constructor Detail

InternalAbstractGraphDatabase

protected InternalAbstractGraphDatabase(String storeDir,
                                        Map<String,String> params,
                                        Iterable<Class<?>> settingsClasses,
                                        Iterable<IndexProvider> indexProviders,
                                        Iterable<KernelExtensionFactory<?>> kernelExtensions,
                                        Iterable<org.neo4j.kernel.impl.cache.CacheProvider> cacheProviders,
                                        Iterable<org.neo4j.kernel.impl.transaction.xaframework.TransactionInterceptorProvider> transactionInterceptorProviders)

Method Detail

run

protected void run()

registerRecovery

protected void registerRecovery()

doAfterRecoveryAndStartup

protected void doAfterRecoveryAndStartup()

create

protected void create()

createTransactionStateFactory

protected org.neo4j.kernel.impl.transaction.TransactionStateFactory createTransactionStateFactory()

createXaDataSourceManager

protected org.neo4j.kernel.impl.transaction.XaDataSourceManager createXaDataSourceManager()

getDependencyResolver

public DependencyResolver getDependencyResolver()

Specified by:

getDependencyResolver in interface GraphDatabaseAPI

createRelationshipTypeCreator

protected org.neo4j.kernel.impl.core.RelationshipTypeCreator createRelationshipTypeCreator()

shutdown

public void shutdown()

Description copied from interface: GraphDatabaseService

Shuts down Neo4j. After this method has been invoked, it's invalid to invoke any methods in the Neo4j API and all references to this instance of GraphDatabaseService should be discarded.

Specified by:

shutdown in interface GraphDatabaseService

createStoreFactory

protected org.neo4j.kernel.impl.nioneo.store.StoreFactory createStoreFactory()

createRecoveryVerifier

protected org.neo4j.kernel.impl.transaction.xaframework.RecoveryVerifier createRecoveryVerifier()

createKernelData

protected KernelData createKernelData()

createTxIdGenerator

protected org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator createTxIdGenerator()

createCaches

protected org.neo4j.kernel.impl.core.Caches createCaches()

createRelationshipLookups

protected org.neo4j.kernel.impl.core.RelationshipProxy.RelationshipLookups createRelationshipLookups()

createNodeLookup

protected org.neo4j.kernel.impl.core.NodeProxy.NodeLookup createNodeLookup()

createTxHook

protected org.neo4j.kernel.impl.transaction.TxHook createTxHook()

createFileSystemAbstraction

protected org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction createFileSystemAbstraction()

createIdGeneratorFactory

protected IdGeneratorFactory createIdGeneratorFactory()

createLockManager

protected org.neo4j.kernel.impl.transaction.LockManager createLockManager()

createLogging

protected Logging createLogging()

createNeoDataSource

protected void createNeoDataSource()

getStoreDir

public final String getStoreDir()

Specified by:

getStoreDir in interface GraphDatabaseAPI

getStoreId

public org.neo4j.kernel.impl.nioneo.store.StoreId getStoreId()

Specified by:

getStoreId in interface GraphDatabaseAPI

beginTx

public Transaction beginTx()

Description copied from interface: GraphDatabaseService

Starts a new transaction and associates it with the current thread.

Specified by:

beginTx in interface GraphDatabaseService

Returns:

a new transaction instance

beginTx

protected Transaction beginTx(org.neo4j.kernel.impl.transaction.xaframework.ForceMode forceMode)

transactionRunning

public boolean transactionRunning()

Specified by:

transactionRunning in class AbstractGraphDatabase

isEphemeral

protected boolean isEphemeral()

toString

public String toString()

Overrides:

toString in class Object

getAllNodes

public Iterable<Node> getAllNodes()

Description copied from interface: GraphDatabaseService

Returns all nodes in the graph.

Specified by:

getAllNodes in interface GraphDatabaseService

Returns:

all nodes in the graph.

getRelationshipTypes

public Iterable<RelationshipType> getRelationshipTypes()

Description copied from interface: GraphDatabaseService

Returns all relationship types currently in the underlying store. Relationship types are added to the underlying store the first time they are used in a successfully commited node.createRelationshipTo(...). Note that this method is guaranteed to return all known relationship types, but it does not guarantee that it won't return more than that (e.g. it can return "historic" relationship types that no longer have any relationships in the node space).

Specified by:

getRelationshipTypes in interface GraphDatabaseService

Returns:

all relationship types in the underlying store

registerKernelEventHandler

public KernelEventHandler registerKernelEventHandler(KernelEventHandler handler)

Description copied from interface: GraphDatabaseService

Registers handler as a handler for kernel events which are generated from different places in the lifecycle of the kernel. To guarantee proper behaviour the handler should be registered right after the graph database has been started. If the specified handler instance has already been registered this method will do nothing.

Specified by:

registerKernelEventHandler in interface GraphDatabaseService

Parameters:

handler - the handler to receive events about different states in the kernel lifecycle.

Returns:

the handler passed in as the argument.

registerTransactionEventHandler

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

Description copied from interface: GraphDatabaseService

Registers handler as a handler for transaction events which are generated from different places in the lifecycle of each transaction. To guarantee that the handler gets all events properly it shouldn't be registered when the application is running (i.e. in the middle of one or more transactions). If the specified handler instance has already been registered this method will do nothing.

Specified by:

registerTransactionEventHandler in interface GraphDatabaseService

Type Parameters:

T - the type of state object used in the handler, see more documentation about it at TransactionEventHandler.

Parameters:

handler - the handler to receive events about different states in transaction lifecycles.

Returns:

the handler passed in as the argument.

unregisterKernelEventHandler

public KernelEventHandler unregisterKernelEventHandler(KernelEventHandler handler)

Description copied from interface: GraphDatabaseService

Unregisters handler from the list of kernel event handlers. If handler hasn't been registered with GraphDatabaseService.registerKernelEventHandler(KernelEventHandler) prior to calling this method an IllegalStateException will be thrown. After a successful call to this method the handler will no longer receive any kernel events.

Specified by:

unregisterKernelEventHandler in interface GraphDatabaseService

Parameters:

handler - the handler to receive events about different states in the kernel lifecycle.

Returns:

the handler passed in as the argument.

unregisterTransactionEventHandler

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

Description copied from interface: GraphDatabaseService

Unregisters handler from the list of transaction event handlers. If handler hasn't been registered with GraphDatabaseService.registerTransactionEventHandler(TransactionEventHandler) prior to calling this method an IllegalStateException will be thrown. After a successful call to this method the handler will no longer receive any transaction events.

Specified by:

unregisterTransactionEventHandler in interface GraphDatabaseService

Type Parameters:

T - the type of state object used in the handler, see more documentation about it at TransactionEventHandler.

Parameters:

handler - the handler to receive events about different states in transaction lifecycles.

Returns:

the handler passed in as the argument.

createNode

public Node createNode()

Description copied from interface: GraphDatabaseService

Creates a new node.

Specified by:

createNode in interface GraphDatabaseService

Returns:

the created node.

getNodeById

public Node getNodeById(long id)

Description copied from interface: GraphDatabaseService

Looks up a node by id. Please note: Neo4j reuses its internal ids when nodes and relationships are deleted, which means it's bad practice to refer to them this way. Instead, use application generated ids.

Specified by:

getNodeById in interface GraphDatabaseService

Parameters:

id - the id of the node

Returns:

the node with id id if found

getRelationshipById

public Relationship getRelationshipById(long id)

Description copied from interface: GraphDatabaseService

Looks up a relationship by id. Please note: Neo4j reuses its internal ids when nodes and relationships are deleted, which means it's bad practice to refer to them this way. Instead, use application generated ids.

Specified by:

getRelationshipById in interface GraphDatabaseService

Parameters:

id - the id of the relationship

Returns:

the relationship with id id if found

getReferenceNode

public Node getReferenceNode()

Description copied from interface: GraphDatabaseService

Returns the reference node, which is a "starting point" in the node space. Usually, a client attaches relationships to this node that leads into various parts of the node space.

Specified by:

getReferenceNode in interface GraphDatabaseService

Returns:

the reference node

tx

public TransactionBuilder tx()

Specified by:

tx in interface GraphDatabaseAPI

getGuard

public Guard getGuard()

Specified by:

getGuard in interface GraphDatabaseAPI

getKernelData

public KernelData getKernelData()

Specified by:

getKernelData in interface GraphDatabaseAPI

index

public IndexManager index()

Description copied from interface: GraphDatabaseService

Returns the IndexManager paired with this graph database service and is the entry point for managing indexes coupled with this database.

Specified by:

index in interface GraphDatabaseService

Returns:

the IndexManager for this database.

getConfig

public Config getConfig()

getNodeManager

public org.neo4j.kernel.impl.core.NodeManager getNodeManager()

Specified by:

getNodeManager in interface GraphDatabaseAPI

getLockManager

public org.neo4j.kernel.impl.transaction.LockManager getLockManager()

Specified by:

getLockManager in interface GraphDatabaseAPI

getXaDataSourceManager

public org.neo4j.kernel.impl.transaction.XaDataSourceManager getXaDataSourceManager()

Specified by:

getXaDataSourceManager in interface GraphDatabaseAPI

getTxManager

public TransactionManager getTxManager()

Specified by:

getTxManager in interface GraphDatabaseAPI

getRelationshipTypeHolder

public org.neo4j.kernel.impl.core.RelationshipTypeHolder getRelationshipTypeHolder()

Specified by:

getRelationshipTypeHolder in interface GraphDatabaseAPI

getIdGeneratorFactory

public IdGeneratorFactory getIdGeneratorFactory()

Specified by:

getIdGeneratorFactory in interface GraphDatabaseAPI

getDiagnosticsManager

public DiagnosticsManager getDiagnosticsManager()

Specified by:

getDiagnosticsManager in interface GraphDatabaseAPI

getPersistenceSource

public org.neo4j.kernel.impl.persistence.PersistenceSource getPersistenceSource()

Specified by:

getPersistenceSource in interface GraphDatabaseAPI

getMessageLog

public final org.neo4j.kernel.impl.util.StringLogger getMessageLog()

Specified by:

getMessageLog in interface GraphDatabaseAPI

getTxIdGenerator

public org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator getTxIdGenerator()

Specified by:

getTxIdGenerator in interface GraphDatabaseAPI

getKernelPanicGenerator

public org.neo4j.kernel.impl.core.KernelPanicEventGenerator getKernelPanicGenerator()

Specified by:

getKernelPanicGenerator in interface GraphDatabaseAPI

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object