ai.grakn.kb.internal.structure

Class Casting

java.lang.Object

ai.grakn.kb.internal.structure.Casting

All Implemented Interfaces:

CacheOwner

public class Casting
extends Object
implements CacheOwner

Represents An Thing Playing a Role

Wraps the Schema.EdgeLabel#ROLE_PLAYER Edge which contains the information unifying an Thing, Relationship and Role.

Author:

fppt

Method Summary

Modifier and Type	Method and Description
Collection<Cache>	caches()
static Casting	create(EdgeElement edgeElement, Relationship relationship, Role role, Thing thing)
void	delete() Deletes this Casting effectively removing a Thing from playing a Role in a Relationship
boolean	equals(Object object)
Relationship	getRelationship()
RelationshipType	getRelationshipType()
Role	getRole()
Thing	getRolePlayer()
int	hashCode()
static Casting	withRelationship(EdgeElement edgeElement, Relationship relationship)
static Casting	withThing(EdgeElement edgeElement, Thing thing)

Methods inherited from class java.lang.Object

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

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

from, registerCache, txCacheClear, txCacheFlush

Method Detail

create

public static Casting create(EdgeElement edgeElement,
                             Relationship relationship,
                             Role role,
                             Thing thing)

withThing

public static Casting withThing(EdgeElement edgeElement,
                                Thing thing)

withRelationship

public static Casting withRelationship(EdgeElement edgeElement,
                                       Relationship relationship)

caches

public Collection<Cache> caches()

Specified by:

caches in interface CacheOwner

Returns:

all the caches beloning to the CacheOwner

getRole

public Role getRole()

Returns:

The Role the Thing is playing

getRelationshipType

public RelationshipType getRelationshipType()

Returns:

The RelationshipType the Thing is taking part in

getRelationship

public Relationship getRelationship()

Returns:

The Relationship which is linking the Role and the instance

getRolePlayer

public Thing getRolePlayer()

Returns:

The Thing playing the Role

hashCode

public int hashCode()

Overrides:

hashCode in class Object

Returns:

The hash code of the underlying vertex

delete

public void delete()

Deletes this Casting effectively removing a Thing from playing a Role in a Relationship

equals

public boolean equals(Object object)

Overrides:

equals in class Object

Returns:

true if the elements equal each other