ai.grakn.graph.internal

Class GraknTitanGraph

java.lang.Object

ai.grakn.graph.internal.AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

ai.grakn.graph.internal.GraknTitanGraph

All Implemented Interfaces:

GraknGraph, GraknAdmin, AutoCloseable

public class GraknTitanGraph
extends AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

A Grakn Graph using TitanGraph as a vendor backend.

Wraps up a TitanGraph as a method of storing the Grakn Graph object Model. With this vendor some issues to be aware of: 1. Whenever a transaction is closed if none remain open then the connection to the graph is closed permanently. 2. Clearing the graph explicitly closes the connection as well.

Author:

fppt

Field Summary

Fields inherited from class ai.grakn.graph.internal.AbstractGraknGraph

LOG

Constructor Summary

Constructors

Constructor and Description
GraknTitanGraph(com.thinkaurelius.titan.core.TitanGraph graph, String name, String engineUrl, boolean batchLoading)

Method Summary

Modifier and Type	Method and Description
protected void	clearGraph()
void	closeGraph(String reason)
void	commitTransaction()
com.thinkaurelius.titan.core.TitanGraph	getTinkerPopGraph()
boolean	isConceptModified(ai.grakn.graph.internal.ConceptImpl concept) Uses TitanVertex.isModified()
boolean	validVertex(org.apache.tinkerpop.gremlin.structure.Vertex vertex)

Methods inherited from class ai.grakn.graph.internal.AbstractGraknGraph

admin, buildConcept, clear, close, closePermanent, commit, commit, commit, commitNoLogs, finaliseClose, fixDuplicateCastings, fixDuplicateResources, getConcept, getConcept, getConceptByBaseIdentifier, getEntityType, getKeyspace, getMetaConcept, getMetaEntityType, getMetaRelationType, getMetaResourceType, getMetaRoleType, getMetaRuleConstraint, getMetaRuleInference, getMetaRuleType, getRelation, getRelationType, getResourcesByValue, getResourceType, getRoleType, getRuleType, getTinkerTraversal, getType, graql, hasCommitted, implicitConceptsVisible, initialiseMetaConcepts, isBatchLoadingEnabled, isClosed, open, putEntityType, putEntityType, putRelationType, putRelationType, putResourceType, putResourceType, putResourceTypeUnique, putResourceTypeUnique, putRoleType, putRoleType, putRuleType, putRuleType, rollback, showImplicitConcepts

Methods inherited from class java.lang.Object

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

Constructor Detail

GraknTitanGraph

public GraknTitanGraph(com.thinkaurelius.titan.core.TitanGraph graph,
                       String name,
                       String engineUrl,
                       boolean batchLoading)

Method Detail

isConceptModified

public boolean isConceptModified(ai.grakn.graph.internal.ConceptImpl concept)

Uses TitanVertex.isModified()

Specified by:

isConceptModified in class AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

Parameters:

concept - A concept in the graph

Returns:

true if the concept has been modified

clearGraph

protected void clearGraph()

Overrides:

clearGraph in class AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

closeGraph

public void closeGraph(String reason)

Overrides:

closeGraph in class AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

getTinkerPopGraph

public com.thinkaurelius.titan.core.TitanGraph getTinkerPopGraph()

Overrides:

getTinkerPopGraph in class AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

commitTransaction

public void commitTransaction()

Overrides:

commitTransaction in class AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

validVertex

public boolean validVertex(org.apache.tinkerpop.gremlin.structure.Vertex vertex)

Specified by:

validVertex in interface GraknAdmin

Overrides:

validVertex in class AbstractGraknGraph<com.thinkaurelius.titan.core.TitanGraph>

Parameters:

vertex - The vertex to be checked against the underlaying graph

Returns:

true if the vertex is still valid and has not been removed