ai.grakn.graph.internal

Class GraknOrientDBGraph

java.lang.Object

ai.grakn.graph.internal.AbstractGraknGraph<org.apache.tinkerpop.gremlin.orientdb.OrientGraph>

ai.grakn.graph.internal.GraknOrientDBGraph

All Implemented Interfaces:

GraknGraph, GraknAdmin, AutoCloseable

public class GraknOrientDBGraph
extends AbstractGraknGraph<org.apache.tinkerpop.gremlin.orientdb.OrientGraph>

A Grakn Graph using OrientGraph as a vendor backend.

Wraps up a OrientGraph as a method of storing the Grakn Graph object Model. With this vendor some issues to be aware of: 1. AbstractGraknGraph#isConceptModified(ConceptImpl) always returns true due to methods not available yet on orient's side. 2. Indexing is done across labels as opposed to global indices

Author:

fppt

Field Summary

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

LOG, NORMAL_CACHE_TIMEOUT_MS, SHARDING_THRESHOLD

Constructor Summary

Constructors

Constructor and Description
GraknOrientDBGraph(org.apache.tinkerpop.gremlin.orientdb.OrientGraph graph, String name, String engineUrl, Properties properties)

Method Summary

Modifier and Type	Method and Description
protected void	commitTransactionInternal()
boolean	isConceptModified(Concept concept)
boolean	isSessionClosed()
int	numOpenTx()

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

abort, admin, buildConcept, buildConcept, clearGraph, close, closeSession, commit, commitNoLogs, convertToId, delete, duplicateResourcesExist, fixDuplicateResources, getConcept, getConcept, getEngineUrl, getEntityType, getKeyspace, getMetaConcept, getMetaEntityType, getMetaRelationType, getMetaResourceType, getMetaRole, getMetaRuleConstraint, getMetaRuleInference, getMetaRuleType, getOntologyConcept, getRelationType, getResourcesByValue, getResourceType, getRole, getRuleType, getTinkerPopGraph, getTinkerTraversal, getType, graql, isBatchGraph, isClosed, isReadOnly, openTransaction, putEntityType, putEntityType, putRelationType, putRelationType, putResourceType, putResourceType, putRole, putRole, putRuleType, putRuleType, shard, updateConceptCounts, validVertex

Methods inherited from class java.lang.Object

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

Constructor Detail

GraknOrientDBGraph

public GraknOrientDBGraph(org.apache.tinkerpop.gremlin.orientdb.OrientGraph graph,
                          String name,
                          String engineUrl,
                          Properties properties)

Method Detail

isConceptModified

public boolean isConceptModified(Concept concept)

Specified by:

isConceptModified in class AbstractGraknGraph<org.apache.tinkerpop.gremlin.orientdb.OrientGraph>

Parameters:

concept - A concept in the graph

Returns:

True because at the moment there is no method in OrientElement which helps us to determine this.

numOpenTx

public int numOpenTx()

Specified by:

numOpenTx in class AbstractGraknGraph<org.apache.tinkerpop.gremlin.orientdb.OrientGraph>

Returns:

The number of open transactions currently.

isSessionClosed

public boolean isSessionClosed()

Specified by:

isSessionClosed in class AbstractGraknGraph<org.apache.tinkerpop.gremlin.orientdb.OrientGraph>

commitTransactionInternal

protected void commitTransactionInternal()