Package org.neo4j.gds.core

Class GraphDimensionsReader<T extends GraphProjectConfig>

java.lang.Object

org.neo4j.gds.utils.StatementApi

org.neo4j.gds.core.utils.StatementFunction<org.neo4j.gds.core.GraphDimensions>

org.neo4j.gds.core.GraphDimensionsReader<T>

All Implemented Interfaces:

java.util.concurrent.Callable<org.neo4j.gds.core.GraphDimensions>, RenamesCurrentThread, StatementApi.TxFunction<org.neo4j.gds.core.GraphDimensions>

public abstract class GraphDimensionsReader<T extends GraphProjectConfig>
extends StatementFunction<org.neo4j.gds.core.GraphDimensions>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GraphDimensionsReader.TokenElementIdentifierMappings<T extends org.neo4j.gds.ElementIdentifier>

Nested classes/interfaces inherited from class org.neo4j.gds.utils.StatementApi

StatementApi.TxConsumer, StatementApi.TxFunction<T>

Nested classes/interfaces inherited from interface org.neo4j.gds.core.utils.RenamesCurrentThread

RenamesCurrentThread.Revert

Field Summary

Fields

Modifier and Type	Field	Description
protected T	graphProjectConfig

Fields inherited from class org.neo4j.gds.utils.StatementApi

tx

Fields inherited from interface org.neo4j.gds.core.utils.RenamesCurrentThread

EMPTY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GraphDimensionsReader(org.neo4j.gds.transaction.TransactionContext tx, T graphProjectConfig, org.neo4j.internal.id.IdGeneratorFactory idGeneratorFactory)

Method Summary

Modifier and Type	Method	Description
org.neo4j.gds.core.GraphDimensions	apply(org.neo4j.kernel.api.KernelTransaction transaction)
protected abstract GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.NodeLabel>	getNodeLabelTokens(org.neo4j.internal.kernel.api.TokenRead tokenRead)
protected abstract org.neo4j.gds.NodeProjections	getNodeProjections()
protected @NotNull java.util.Map<org.neo4j.gds.RelationshipType,java.lang.Long>	getRelationshipCountsByType(org.neo4j.internal.kernel.api.Read dataRead, GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.NodeLabel> labelTokenNodeLabelMappings, GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.RelationshipType> typeTokenRelTypeMappings)
protected abstract org.neo4j.gds.RelationshipProjections	getRelationshipProjections()
protected abstract GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.RelationshipType>	getRelationshipTypeTokens(org.neo4j.internal.kernel.api.TokenRead tokenRead)
protected java.util.Map<java.lang.String,java.lang.Integer>	loadPropertyTokens(java.util.Map<? extends org.neo4j.gds.ElementIdentifier,? extends org.neo4j.gds.ElementProjection> projectionMapping, org.neo4j.internal.kernel.api.TokenRead tokenRead)

Methods inherited from class org.neo4j.gds.core.utils.StatementFunction

call

Methods inherited from class org.neo4j.gds.utils.StatementApi

acceptInTransaction, applyInTransaction, getOrCreateNodeLabelToken, getOrCreatePropertyToken, getOrCreateRelationshipToken

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.neo4j.gds.core.utils.RenamesCurrentThread

threadName

Field Detail

graphProjectConfig

protected T extends GraphProjectConfig graphProjectConfig

Constructor Detail

GraphDimensionsReader

protected GraphDimensionsReader(org.neo4j.gds.transaction.TransactionContext tx,
                                T graphProjectConfig,
                                org.neo4j.internal.id.IdGeneratorFactory idGeneratorFactory)

Method Detail

apply

public org.neo4j.gds.core.GraphDimensions apply(org.neo4j.kernel.api.KernelTransaction transaction)
                                         throws java.lang.RuntimeException

Throws:

java.lang.RuntimeException

getNodeLabelTokens

protected abstract GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.NodeLabel> getNodeLabelTokens(org.neo4j.internal.kernel.api.TokenRead tokenRead)

getRelationshipTypeTokens

protected abstract GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.RelationshipType> getRelationshipTypeTokens(org.neo4j.internal.kernel.api.TokenRead tokenRead)

getNodeProjections

protected abstract org.neo4j.gds.NodeProjections getNodeProjections()

getRelationshipProjections

protected abstract org.neo4j.gds.RelationshipProjections getRelationshipProjections()

loadPropertyTokens

protected java.util.Map<java.lang.String,java.lang.Integer> loadPropertyTokens(java.util.Map<? extends org.neo4j.gds.ElementIdentifier,? extends org.neo4j.gds.ElementProjection> projectionMapping,
                                                                                     org.neo4j.internal.kernel.api.TokenRead tokenRead)

getRelationshipCountsByType

@NotNull
protected @NotNull java.util.Map<org.neo4j.gds.RelationshipType,java.lang.Long> getRelationshipCountsByType(org.neo4j.internal.kernel.api.Read dataRead,
                                                                                                                  GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.NodeLabel> labelTokenNodeLabelMappings,
                                                                                                                  GraphDimensionsReader.TokenElementIdentifierMappings<org.neo4j.gds.RelationshipType> typeTokenRelTypeMappings)