org.hibernate.ogm.datastore.neo4j

Class EmbeddedNeo4jDialect

java.lang.Object

org.hibernate.ogm.dialect.spi.BaseGridDialect

org.hibernate.ogm.datastore.neo4j.BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

org.hibernate.ogm.datastore.neo4j.EmbeddedNeo4jDialect

All Implemented Interfaces:

Serializable, MultigetGridDialect, QueryableGridDialect<String>, GridDialect, SessionFactoryLifecycleAwareDialect, Service, ServiceRegistryAwareService

Direct Known Subclasses:

Neo4jDialect

public class EmbeddedNeo4jDialect
extends BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

Abstracts Hibernate OGM from Neo4j.

A Tuple is saved as a Node where the columns are converted into properties of the node.
An Association is converted into a Relationship identified by the AssociationKey and the RowKey. The type of the relationship is the value returned by AssociationKeyMetadata.getCollectionRole().

If the value of a property is set to null the property will be removed (Neo4j does not allow to store null values).

Author:

Davide D'Alto <davide@hibernate.org>

See Also:

Serialized Form

Field Summary

Fields inherited from class org.hibernate.ogm.datastore.neo4j.BaseNeo4jDialect

CONSTRAINT_VIOLATION_CODE, TUPLE_ALREADY_EXISTS_EXCEPTION_PATTERN

Constructor Summary

Constructors

Constructor and Description
EmbeddedNeo4jDialect(org.hibernate.ogm.datastore.neo4j.embedded.impl.EmbeddedNeo4jDatastoreProvider provider)

Method Summary

Modifier and Type	Method and Description
protected org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries	createNeo4jAssociationQueries(EntityKeyMetadata ownerEntityKeyMetadata, AssociationKeyMetadata associationKeyMetadata)
protected org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries	createNeo4jEntityQueries(EntityKeyMetadata entityKeyMetadata, TupleTypeContext tupleTypeContext)
Tuple	createTuple(EntityKey key, OperationContext tupleContext)
protected EntityKeyMetadata	entityKeyMetadata(EntityKeyMetadata keyMetadata, TupleTypeContext tupleTypeContext)
ClosableIterator<Tuple>	executeBackendQuery(BackendQuery<String> backendQuery, QueryParameters queryParameters, TupleContext tupleContext)
int	executeBackendUpdateQuery(BackendQuery<String> backendQuery, QueryParameters queryParameters, TupleContext tupleContext)
void	forEachTuple(ModelConsumer consumer, TupleTypeContext tupleTypeContext, EntityKeyMetadata entityKeyMetadata)
Association	getAssociation(AssociationKey associationKey, AssociationContext associationContext)
Tuple	getTuple(EntityKey key, OperationContext context)
List<Tuple>	getTuples(EntityKey[] keys, TupleContext tupleContext)
void	insertOrUpdateAssociation(AssociationKey key, Association association, AssociationContext associationContext)
void	insertOrUpdateTuple(EntityKey key, org.hibernate.ogm.entityentry.impl.TuplePointer tuplePointer, TupleContext tupleContext)
Number	nextValue(NextValueRequest request)
String	parseNativeQuery(String nativeQuery)
void	removeAssociation(AssociationKey key, AssociationContext associationContext)
void	removeTuple(EntityKey key, TupleContext tupleContext)

Methods inherited from class org.hibernate.ogm.datastore.neo4j.BaseNeo4jDialect

buildNativeQuery, convert, createAssociation, entityKeyMetadata, getAssociationQueries, getDuplicateInsertPreventionStrategy, getEntityKey, getEntityQueries, getEntityQueries, getParameterMetadataBuilder, getParameters, getServiceRegistry, initializeAssociationQueries, injectServices, isPartOfRegularEmbedded, isStoredInEntityStructure, overrideType, sessionFactoryCreated, supportsSequences, usesNavigationalInformationForInverseSideOfAssociations

Methods inherited from class org.hibernate.ogm.dialect.spi.BaseGridDialect

getLockingStrategy, isInTheInsertionQueue

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.ogm.dialect.spi.GridDialect

getLockingStrategy

Constructor Detail

EmbeddedNeo4jDialect

public EmbeddedNeo4jDialect(org.hibernate.ogm.datastore.neo4j.embedded.impl.EmbeddedNeo4jDatastoreProvider provider)

Method Detail

createNeo4jAssociationQueries

protected org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries createNeo4jAssociationQueries(EntityKeyMetadata ownerEntityKeyMetadata,
                                                                                                                                AssociationKeyMetadata associationKeyMetadata)

Specified by:

createNeo4jAssociationQueries in class BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

createNeo4jEntityQueries

protected org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries createNeo4jEntityQueries(EntityKeyMetadata entityKeyMetadata,
                                                                                                                      TupleTypeContext tupleTypeContext)

Specified by:

createNeo4jEntityQueries in class BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

getTuple

public Tuple getTuple(EntityKey key,
                      OperationContext context)

getTuples

public List<Tuple> getTuples(EntityKey[] keys,
                             TupleContext tupleContext)

createTuple

public Tuple createTuple(EntityKey key,
                         OperationContext tupleContext)

Specified by:

createTuple in interface GridDialect

Overrides:

createTuple in class BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

insertOrUpdateTuple

public void insertOrUpdateTuple(EntityKey key,
                                org.hibernate.ogm.entityentry.impl.TuplePointer tuplePointer,
                                TupleContext tupleContext)

removeTuple

public void removeTuple(EntityKey key,
                        TupleContext tupleContext)

entityKeyMetadata

protected EntityKeyMetadata entityKeyMetadata(EntityKeyMetadata keyMetadata,
                                              TupleTypeContext tupleTypeContext)

Overrides:

entityKeyMetadata in class BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

getAssociation

public Association getAssociation(AssociationKey associationKey,
                                  AssociationContext associationContext)

insertOrUpdateAssociation

public void insertOrUpdateAssociation(AssociationKey key,
                                      Association association,
                                      AssociationContext associationContext)

removeAssociation

public void removeAssociation(AssociationKey key,
                              AssociationContext associationContext)

forEachTuple

public void forEachTuple(ModelConsumer consumer,
                         TupleTypeContext tupleTypeContext,
                         EntityKeyMetadata entityKeyMetadata)

nextValue

public Number nextValue(NextValueRequest request)

executeBackendQuery

public ClosableIterator<Tuple> executeBackendQuery(BackendQuery<String> backendQuery,
                                                   QueryParameters queryParameters,
                                                   TupleContext tupleContext)

executeBackendUpdateQuery

public int executeBackendUpdateQuery(BackendQuery<String> backendQuery,
                                     QueryParameters queryParameters,
                                     TupleContext tupleContext)

Specified by:

executeBackendUpdateQuery in interface QueryableGridDialect<String>

Overrides:

executeBackendUpdateQuery in class BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>

parseNativeQuery

public String parseNativeQuery(String nativeQuery)

Specified by:

parseNativeQuery in interface QueryableGridDialect<String>

Overrides:

parseNativeQuery in class BaseNeo4jDialect<org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jEntityQueries,org.hibernate.ogm.datastore.neo4j.embedded.dialect.impl.EmbeddedNeo4jAssociationQueries>