ai.grakn.kb.internal.concept

Class AttributeImpl<D>

java.lang.Object

ai.grakn.kb.internal.concept.ConceptImpl

ai.grakn.kb.internal.concept.ThingImpl<Attribute<D>,AttributeType<D>>

ai.grakn.kb.internal.concept.AttributeImpl<D>

Type Parameters:

D - The data type of this resource type. Supported Types include: String, Long, Double, and Boolean

All Implemented Interfaces:

Attribute<D>, Concept, Thing, ContainsTxCache, ConceptVertex, Comparable<Concept>

public class AttributeImpl<D>
extends ThingImpl<Attribute<D>,AttributeType<D>>
implements Attribute<D>

Represent a literal resource in the graph.

Acts as an Thing when relating to other instances except it has the added functionality of: 1. It is unique to its AttributeType based on it's value. 2. It has a AttributeType.DataType associated with it which constrains the allowed values.

Author:

fppt

Method Summary

Modifier and Type	Method and Description
static <D> AttributeImpl<D>	create(VertexElement vertexElement, AttributeType<D> type, Object value)
AttributeType.DataType<D>	dataType()
static AttributeImpl	from(Attribute attribute)
static <D> AttributeImpl<D>	get(VertexElement vertexElement)
D	getValue()
String	innerToString()
Thing	owner()
java.util.stream.Stream<Thing>	ownerInstances()

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

attribute, attributeRelationship, attributes, delete, deleteAttribute, getIndex, plays, relationships, txCacheClear, type

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.Attribute

asAttribute, attribute, deleteAttribute, isAttribute, type

Methods inherited from interface ai.grakn.concept.Thing

asThing, attributeRelationship, attributes, isThing, plays, relationships

Methods inherited from interface ai.grakn.concept.Concept

asAttributeType, asEntity, asEntityType, asRelationship, asRelationshipType, asRole, asRule, asSchemaConcept, asType, delete, getId, isAttributeType, isDeleted, isEntity, isEntityType, isRelationship, isRelationshipType, isRole, isRule, isSchemaConcept, isType

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 <D> AttributeImpl<D> get(VertexElement vertexElement)

create

public static <D> AttributeImpl<D> create(VertexElement vertexElement,
                                          AttributeType<D> type,
                                          Object value)

dataType

public AttributeType.DataType<D> dataType()

Specified by:

dataType in interface Attribute<D>

Returns:

The data type of this Attribute's AttributeType.

ownerInstances

public java.util.stream.Stream<Thing> ownerInstances()

Specified by:

ownerInstances in interface Attribute<D>

Returns:

The list of all Instances which posses this resource

owner

public Thing owner()

Specified by:

owner in interface Attribute<D>

getValue

public D getValue()

Specified by:

getValue in interface Attribute<D>

Returns:

The value casted to the correct type

innerToString

public String innerToString()

from

public static AttributeImpl from(Attribute attribute)