org.neo4j.kernel
Class AbstractGraphDatabase

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

All Implemented Interfaces:

GraphDatabaseService, GraphDatabaseSPI

Direct Known Subclasses:

EmbeddedGraphDatabase, EmbeddedReadOnlyGraphDatabase

public abstract class AbstractGraphDatabase
extends Object
implements GraphDatabaseService, GraphDatabaseSPI

Exposes the methods getManagementBeans(Class)() a.s.o.

Nested Class Summary

protected class

AbstractGraphDatabase.DefaultKernelData

Field Summary

protected Config	config
protected DiagnosticsManager	diagnosticsManager
protected KernelData	extensions
protected org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction	fileSystem
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 org.neo4j.kernel.impl.core.LastCommittedTxIdSetter	lastCommittedTxIdSetter
protected org.neo4j.kernel.impl.transaction.LockManager	lockManager
protected org.neo4j.kernel.impl.core.LockReleaser	lockReleaser
protected org.neo4j.kernel.impl.transaction.xaframework.LogBufferFactory	logBufferFactory
protected org.neo4j.kernel.impl.cache.MeasureDoNothing	monitorGc
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.RagManager	ragManager
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 String	storeDir
protected org.neo4j.kernel.impl.nioneo.store.StoreFactory	storeFactory
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

AbstractGraphDatabase(String storeDir, Map<String,String> params)

Method Summary

Transaction	beginTx() Starts a new transaction and associates it with the current thread.
protected org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction	createFileSystemAbstraction()
protected IdGeneratorFactory	createIdGeneratorFactory()
protected KernelData	createKernelData()
protected org.neo4j.kernel.impl.core.LastCommittedTxIdSetter	createLastCommittedTxIdSetter()
protected org.neo4j.kernel.impl.transaction.LockManager	createLockManager()
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.nioneo.store.StoreFactory	createStoreFactory()
protected org.neo4j.kernel.impl.util.StringLogger	createStringLogger()
protected org.neo4j.kernel.impl.transaction.TxHook	createTxHook()
protected org.neo4j.kernel.impl.transaction.xaframework.TxIdGenerator	createTxIdGenerator()
boolean	equals(Object o)
Iterable<Node>	getAllNodes() Returns all nodes in the graph.
Config	getConfig()
DiagnosticsManager	getDiagnosticsManager()
IdGeneratorFactory	getIdGeneratorFactory()
KernelData	getKernelData()
org.neo4j.kernel.impl.core.KernelPanicEventGenerator	getKernelPanicGenerator()
org.neo4j.kernel.impl.transaction.LockManager	getLockManager()
org.neo4j.kernel.impl.core.LockReleaser	getLockReleaser()
<T> T	getManagementBean(Class<T> type) Deprecated. since Neo4j may now have multiple beans implementing the same bean interface, this method has been deprecated in favor of getSingleManagementBean(Class) and getManagementBeans(Class) . Version 1.5 of Neo4j will be the last version to contain this method.
<T> Collection<T>	getManagementBeans(Class<T> beanClass)
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.
<T> T	getSingleManagementBean(Class<T> type)
String	getStoreDir()
org.neo4j.kernel.impl.nioneo.store.StoreId	getStoreId()
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()
static Map<String,String>	loadConfigurations(String file) A non-standard Convenience method that loads a standard property file and converts it into a generic Map.
KernelEventHandler	registerKernelEventHandler(KernelEventHandler handler) Registers handler as a handler for kernel events which are generated from different places in the lifecycle of the kernel.
<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 String storeDir

params

protected Map<String,String> params

msgLog

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

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

config

protected Config config

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

ragManager

protected org.neo4j.kernel.impl.transaction.RagManager ragManager

lockManager

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

idGeneratorFactory

protected IdGeneratorFactory idGeneratorFactory

relationshipTypeCreator

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

lastCommittedTxIdSetter

protected org.neo4j.kernel.impl.core.LastCommittedTxIdSetter lastCommittedTxIdSetter

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

lockReleaser

protected org.neo4j.kernel.impl.core.LockReleaser lockReleaser

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

monitorGc

protected org.neo4j.kernel.impl.cache.MeasureDoNothing monitorGc

nodeAutoIndexer

protected org.neo4j.kernel.NodeAutoIndexerImpl nodeAutoIndexer

relAutoIndexer

protected org.neo4j.kernel.RelationshipAutoIndexerImpl relAutoIndexer

extensions

protected KernelData extensions

Constructor Detail

AbstractGraphDatabase

protected AbstractGraphDatabase(String storeDir,
                                Map<String,String> params)

Method Detail

run

protected void run()

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()

createLastCommittedTxIdSetter

protected org.neo4j.kernel.impl.core.LastCommittedTxIdSetter createLastCommittedTxIdSetter()

createTxIdGenerator

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

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()

createStringLogger

protected org.neo4j.kernel.impl.util.StringLogger createStringLogger()

getStoreDir

public final String getStoreDir()

Specified by:

getStoreDir in interface GraphDatabaseSPI

getStoreId

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

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

transactionRunning

public boolean transactionRunning()

getManagementBean

@Deprecated
public final <T> T getManagementBean(Class<T> type)

Deprecated. since Neo4j may now have multiple beans implementing the same bean interface, this method has been deprecated in favor of getSingleManagementBean(Class) and getManagementBeans(Class) . Version 1.5 of Neo4j will be the last version to contain this method.

Get a single management bean. Delegates to getSingleManagementBean(Class).

getSingleManagementBean

public final <T> T getSingleManagementBean(Class<T> type)

Specified by:

getSingleManagementBean in interface GraphDatabaseSPI

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.

loadConfigurations

public static Map<String,String> loadConfigurations(String file)

A non-standard Convenience method that loads a standard property file and converts it into a generic Map. Will most likely be removed in future releases.

Parameters:

file - the property file to load

Returns:

a map containing the properties from the file

Throws:

IllegalArgumentException - if file does not exist

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.

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.

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. For more information about common node space organizational patterns, see the design guide at wiki.neo4j.org/content/Design_Guide.

Specified by:

getReferenceNode in interface GraphDatabaseService

Returns:

the reference node

tx

public TransactionBuilder tx()

Specified by:

tx in interface GraphDatabaseSPI

getManagementBeans

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

Specified by:

getManagementBeans in interface GraphDatabaseSPI

getKernelData

public KernelData getKernelData()

Specified by:

getKernelData in interface GraphDatabaseSPI

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 GraphDatabaseSPI

getLockReleaser

public org.neo4j.kernel.impl.core.LockReleaser getLockReleaser()

Specified by:

getLockReleaser in interface GraphDatabaseSPI

getLockManager

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

Specified by:

getLockManager in interface GraphDatabaseSPI

getXaDataSourceManager

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

Specified by:

getXaDataSourceManager in interface GraphDatabaseSPI

getTxManager

public TransactionManager getTxManager()

Specified by:

getTxManager in interface GraphDatabaseSPI

getRelationshipTypeHolder

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

Specified by:

getRelationshipTypeHolder in interface GraphDatabaseSPI

getIdGeneratorFactory

public IdGeneratorFactory getIdGeneratorFactory()

Specified by:

getIdGeneratorFactory in interface GraphDatabaseSPI

getDiagnosticsManager

public DiagnosticsManager getDiagnosticsManager()

Specified by:

getDiagnosticsManager in interface GraphDatabaseSPI

getPersistenceSource

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

Specified by:

getPersistenceSource in interface GraphDatabaseSPI

getMessageLog

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

Specified by:

getMessageLog in interface GraphDatabaseSPI

getKernelPanicGenerator

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

Specified by:

getKernelPanicGenerator in interface GraphDatabaseSPI

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object