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, CacheOwner, ConceptVertex

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

Method Summary

Modifier and Type	Method and Description
Relationship	addRelationship(boolean isInferred)
Relationship	addRelationshipInferred()
Relationship	create()
static RelationshipTypeImpl	create(VertexElement vertexElement, RelationshipType type)
void	delete() Deletes the concept as type
static RelationshipTypeImpl	from(RelationshipType relationshipType)
static RelationshipTypeImpl	get(VertexElement vertexElement)
java.util.stream.Stream<Relationship>	instancesDirect()
RelationshipType	relates(Role role)
java.util.stream.Stream<Role>	roles()
RelationshipType	unrelate(Role role)

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

attributes, directPlays, from, has, instances, isAbstract, isAbstract, key, keys, play, playing, plays, property, unhas, unkey, unplay

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

from, innerToString, isImplicit, label, label, labelId, subs, sup, sup, sups, thenRules, whenRules

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

baseType, caches, createShard, currentShard, deleteNode, equals, hashCode, id, isDeleted, keyspace, shardCount, 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, has, instances, isAbstract, isRelationshipType, key, label, plays, subs, sup, sup, sups, unhas, unkey, unplay

Methods inherited from interface ai.grakn.concept.Type

asType, attributes, isAbstract, isType, keys, playing

Methods inherited from interface ai.grakn.concept.SchemaConcept

asSchemaConcept, isImplicit, isSchemaConcept, label, labelId, thenRules, whenRules

Methods inherited from interface ai.grakn.concept.Concept

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

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

from

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

from, registerCache, txCacheClear, txCacheFlush

Method Detail

get

public static RelationshipTypeImpl get(VertexElement vertexElement)

create

public static RelationshipTypeImpl create(VertexElement vertexElement,
                                          RelationshipType type)

create

public Relationship create()

Specified by:

create in interface RelationshipType

addRelationshipInferred

public Relationship addRelationshipInferred()

addRelationship

public Relationship addRelationship(boolean isInferred)

roles

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

Specified by:

roles in interface RelationshipType

relates

public RelationshipType relates(Role role)

Specified by:

relates in interface RelationshipType

unrelate

public RelationshipType unrelate(Role role)

Specified by:

unrelate 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()

from

public static RelationshipTypeImpl from(RelationshipType relationshipType)