ai.grakn.client

Class Grakn.Transaction

java.lang.Object

ai.grakn.client.Grakn.Transaction

All Implemented Interfaces:

GraknTx, GraknAdmin, AutoCloseable

Enclosing class:

Grakn

public static final class Grakn.Transaction
extends Object
implements GraknTx, GraknAdmin

Remote implementation of GraknTx and GraknAdmin that communicates with a Grakn server using gRPC.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Grakn.Transaction.Iterator<T> A client-side iterator over gRPC messages.

Method Summary

Modifier and Type	Method and Description
GraknAdmin	admin()
void	close()
void	commit()
<V> Collection<Attribute<V>>	getAttributesByValue(V value)
<V> AttributeType<V>	getAttributeType(String label)
<T extends Concept> T	getConcept(ConceptId id)
EntityType	getEntityType(String label)
RelationshipType	getRelationshipType(String label)
Role	getRole(String label)
Rule	getRule(String label)
<T extends SchemaConcept> T	getSchemaConcept(Label label)
<T extends Type> T	getType(Label label)
QueryBuilder	graql()
boolean	isClosed()
<V> AttributeType<V>	putAttributeType(Label label, AttributeType.DataType<V> dataType)
EntityType	putEntityType(Label label)
RelationshipType	putRelationshipType(Label label)
Role	putRole(Label label)
Rule	putRule(Label label, Pattern when, Pattern then)
Iterator	query(Query<?> query)
QueryExecutor	queryExecutor()
SessionProto.Transaction.Res	runConceptMethod(ConceptId id, ConceptProto.Method.Req method)
GraknSession	session()
java.util.stream.Stream<SchemaConcept>	sups(SchemaConcept schemaConcept)
GraknTxType	txType()

Methods inherited from class java.lang.Object

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

Methods inherited from interface ai.grakn.kb.admin.GraknAdmin

getMetaAttributeType, getMetaConcept, getMetaEntityType, getMetaRelationType, getMetaRole, getMetaRule

Methods inherited from interface ai.grakn.GraknTx

abort, keyspace, putAttributeType, putEntityType, putRelationshipType, putRole, putRule

Method Detail

admin

public GraknAdmin admin()

Specified by:

admin in interface GraknTx

txType

public GraknTxType txType()

Specified by:

txType in interface GraknTx

session

public GraknSession session()

Specified by:

session in interface GraknTx

close

public void close()

Specified by:

close in interface GraknTx

Specified by:

close in interface AutoCloseable

isClosed

public boolean isClosed()

Specified by:

isClosed in interface GraknTx

graql

public QueryBuilder graql()

Specified by:

graql in interface GraknTx

queryExecutor

public QueryExecutor queryExecutor()

Specified by:

queryExecutor in interface GraknAdmin

commit

public void commit()
            throws InvalidKBException

Specified by:

commit in interface GraknTx

Throws:

InvalidKBException

query

public Iterator query(Query<?> query)

getType

@Nullable
public <T extends Type> T getType(Label label)

Specified by:

getType in interface GraknTx

getEntityType

@Nullable
public EntityType getEntityType(String label)

Specified by:

getEntityType in interface GraknTx

getRelationshipType

@Nullable
public RelationshipType getRelationshipType(String label)

Specified by:

getRelationshipType in interface GraknTx

getAttributeType

@Nullable
public <V> AttributeType<V> getAttributeType(String label)

Specified by:

getAttributeType in interface GraknTx

getRole

@Nullable
public Role getRole(String label)

Specified by:

getRole in interface GraknTx

getRule

@Nullable
public Rule getRule(String label)

Specified by:

getRule in interface GraknTx

getSchemaConcept

@Nullable
public <T extends SchemaConcept> T getSchemaConcept(Label label)

Specified by:

getSchemaConcept in interface GraknTx

getConcept

@Nullable
public <T extends Concept> T getConcept(ConceptId id)

Specified by:

getConcept in interface GraknTx

getAttributesByValue

public <V> Collection<Attribute<V>> getAttributesByValue(V value)

Specified by:

getAttributesByValue in interface GraknTx

putEntityType

public EntityType putEntityType(Label label)

Specified by:

putEntityType in interface GraknTx

putAttributeType

public <V> AttributeType<V> putAttributeType(Label label,
                                             AttributeType.DataType<V> dataType)

Specified by:

putAttributeType in interface GraknTx

putRelationshipType

public RelationshipType putRelationshipType(Label label)

Specified by:

putRelationshipType in interface GraknTx

putRole

public Role putRole(Label label)

Specified by:

putRole in interface GraknTx

putRule

public Rule putRule(Label label,
                    Pattern when,
                    Pattern then)

Specified by:

putRule in interface GraknTx

sups

public java.util.stream.Stream<SchemaConcept> sups(SchemaConcept schemaConcept)

Specified by:

sups in interface GraknAdmin

runConceptMethod

public SessionProto.Transaction.Res runConceptMethod(ConceptId id,
                                                     ConceptProto.Method.Req method)