ai.grakn.kb.internal.concept

Class RelationshipTypeImpl

java.lang.Object

ai.grakn.kb.internal.concept.ConceptImpl

ai.grakn.kb.internal.concept.SchemaConceptImpl<T>

ai.grakn.kb.internal.concept.TypeImpl<RelationshipType,Relationship>

ai.grakn.kb.internal.concept.RelationshipTypeImpl

All Implemented Interfaces:

Concept, RelationshipType, SchemaConcept, Type, ContainsTxCache, ConceptVertex, Comparable<Concept>

public class RelationshipTypeImpl
extends TypeImpl<RelationshipType,Relationship>
implements RelationshipType

An ontological element which categorises how instances may relate to each other.

A relation type defines how Type may relate to one another. They are used to model and categorise n-ary relationships.

Author:

fppt

Field Summary

Fields inherited from class ai.grakn.kb.internal.concept.TypeImpl

LOG

Method Summary

Modifier and Type	Method and Description
Relationship	addRelationship()
static RelationshipTypeImpl	create(VertexElement vertexElement, RelationshipType type, Boolean isImplicit)
void	delete() Deletes the concept as type
RelationshipType	deleteRelates(Role role)
static RelationshipTypeImpl	get(VertexElement vertexElement)
java.util.stream.Stream<Relationship>	instancesDirect()
java.util.stream.Stream<Role>	relates()
RelationshipType	relates(Role role)
void	txCacheClear() Clears the internal transaction caches
void	txCacheFlush() Flushes the internal transaction caches so they can refresh with persisted graph

Methods inherited from class ai.grakn.kb.internal.concept.TypeImpl

attribute, attributes, deleteAttribute, deleteKey, deletePlays, directPlays, from, instances, isAbstract, key, keys, plays, plays, plays, property, setAbstract

Methods inherited from class ai.grakn.kb.internal.concept.SchemaConceptImpl

from, getLabel, getLabelId, getRulesOfConclusion, getRulesOfHypothesis, innerToString, isImplicit, setLabel, sub, subs, sup, sup, superSet

Methods inherited from class ai.grakn.kb.internal.concept.ConceptImpl

addEdge, baseType, compareTo, createShard, currentShard, deleteNode, equals, getId, getShardCount, hashCode, isDeleted, setShardCount, shards, toString, vertex

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ai.grakn.concept.RelationshipType

asRelationshipType, attribute, deleteAttribute, deleteKey, deletePlays, instances, isRelationshipType, key, plays, setAbstract, setLabel, sub, subs, sup, sup

Methods inherited from interface ai.grakn.concept.Type

asType, attributes, isAbstract, isType, keys, plays

Methods inherited from interface ai.grakn.concept.SchemaConcept

asSchemaConcept, getLabel, getLabelId, getRulesOfConclusion, getRulesOfHypothesis, isImplicit, isSchemaConcept

Methods inherited from interface ai.grakn.concept.Concept

asAttribute, asAttributeType, asEntity, asEntityType, asRelationship, asRole, asRule, asThing, getId, isAttribute, isAttributeType, isDeleted, isEntity, isEntityType, isRelationship, isRole, isRule, isThing

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface ai.grakn.kb.internal.concept.ConceptVertex

from

Methods inherited from interface ai.grakn.kb.internal.cache.ContainsTxCache

from

Method Detail

get

public static RelationshipTypeImpl get(VertexElement vertexElement)

create

public static RelationshipTypeImpl create(VertexElement vertexElement,
                                          RelationshipType type,
                                          Boolean isImplicit)

addRelationship

public Relationship addRelationship()

Specified by:

addRelationship in interface RelationshipType

txCacheFlush

public void txCacheFlush()

Description copied from class: TypeImpl

Flushes the internal transaction caches so they can refresh with persisted graph

Overrides:

txCacheFlush in class TypeImpl<RelationshipType,Relationship>

txCacheClear

public void txCacheClear()

Description copied from class: TypeImpl

Clears the internal transaction caches

Specified by:

txCacheClear in interface ContainsTxCache

Overrides:

txCacheClear in class TypeImpl<RelationshipType,Relationship>

relates

public java.util.stream.Stream<Role> relates()

Specified by:

relates in interface RelationshipType

relates

public RelationshipType relates(Role role)

Specified by:

relates in interface RelationshipType

deleteRelates

public RelationshipType deleteRelates(Role role)

Specified by:

deleteRelates in interface RelationshipType

Parameters:

role - The Role to delete from this RelationshipType.

Returns:

The Relationship Type itself.

delete

public void delete()

Description copied from class: TypeImpl

Deletes the concept as type

Specified by:

delete in interface Concept

Overrides:

delete in class TypeImpl<RelationshipType,Relationship>

instancesDirect

public java.util.stream.Stream<Relationship> instancesDirect()