Package org.neo4j.gds.core.loading

Class GraphStoreCatalogService

java.lang.Object

org.neo4j.gds.core.loading.GraphStoreCatalogService

public class GraphStoreCatalogService
extends java.lang.Object

One day the graph catalog won't be a static thing, it'll instead be a dependency you inject here. One day.

For now this service helps us engineer some other things. Calls are mostly 1-1, but we can do some handy and _simple_ adapting, to make calling code easier to test, without having to write separate tests for this class.

Constructor Summary

Constructors

Constructor	Description
GraphStoreCatalogService()

Method Summary

Modifier and Type	Method	Description
void	ensureGraphDoesNotExist(User user, DatabaseId databaseId, GraphName graphName)	Predicate around @graphExists
GraphStoreWithConfig	get(CatalogRequest catalogRequest, GraphName graphName)
java.util.stream.Stream<GraphStoreCatalog.GraphStoreWithUserNameAndConfig>	getAllGraphStores()
java.util.Optional<java.util.Map<java.lang.String,java.lang.Object>>	getDegreeDistribution(User user, DatabaseId databaseId, GraphName graphName)
java.util.Map<GraphProjectConfig,GraphStore>	getGraphStores(User user)
boolean	graphExists(User user, DatabaseId databaseId, GraphName graphName)
GraphStoreWithConfig	removeGraph(CatalogRequest request, GraphName graphName, boolean shouldFailIfMissing)
void	setDegreeDistribution(User user, DatabaseId databaseId, GraphName graphName, java.util.Map<java.lang.String,java.lang.Object> degreeDistribution)

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphStoreCatalogService

public GraphStoreCatalogService()

Method Detail

graphExists

public boolean graphExists(User user,
                           DatabaseId databaseId,
                           GraphName graphName)

removeGraph

public GraphStoreWithConfig removeGraph(CatalogRequest request,
                                        GraphName graphName,
                                        boolean shouldFailIfMissing)

get

public GraphStoreWithConfig get(CatalogRequest catalogRequest,
                                GraphName graphName)

ensureGraphDoesNotExist

public void ensureGraphDoesNotExist(User user,
                                    DatabaseId databaseId,
                                    GraphName graphName)

Predicate around @graphExists

Throws:

java.lang.IllegalArgumentException - if graph already exists in graph catalog

getDegreeDistribution

public java.util.Optional<java.util.Map<java.lang.String,java.lang.Object>> getDegreeDistribution(User user,
                                                                                                        DatabaseId databaseId,
                                                                                                        GraphName graphName)

setDegreeDistribution

public void setDegreeDistribution(User user,
                                  DatabaseId databaseId,
                                  GraphName graphName,
                                  java.util.Map<java.lang.String,java.lang.Object> degreeDistribution)

getAllGraphStores

public java.util.stream.Stream<GraphStoreCatalog.GraphStoreWithUserNameAndConfig> getAllGraphStores()

getGraphStores

public java.util.Map<GraphProjectConfig,GraphStore> getGraphStores(User user)