Examples with OWNS com.vaticle.typedb.core.graph.common.Encoding.Edge.Type.OWNS used on opensource projects

Example 1 with OWNS

use of com.vaticle.typedb.core.graph.common.Encoding.Edge.Type.OWNS in project grakn by graknlabs.

the class ThingTypeImpl method ownsKey.

private void ownsKey(AttributeTypeImpl attributeType) {
    validateIsNotDeleted();
    TypeVertex attVertex = attributeType.vertex;
    TypeEdge ownsEdge, ownsKeyEdge;
    if (vertex.outs().edge(OWNS_KEY, attVertex) != null)
        return;
    if (!attributeType.isKeyable()) {
        throw exception(TypeDBException.of(OWNS_KEY_VALUE_TYPE, attributeType.getLabel(), attributeType.getValueType().name()));
    } else if (link(getSupertype().getOwns(attributeType.getValueType(), true), getSupertype().overriddenOwns(false, true)).anyMatch(a -> a.equals(attributeType))) {
        throw exception(TypeDBException.of(OWNS_KEY_NOT_AVAILABLE, attributeType.getLabel()));
    }
    if ((ownsEdge = vertex.outs().edge(OWNS, attVertex)) != null) {
        // TODO: These ownership and uniqueness checks should be parallelised to scale better
        getInstances().forEachRemaining(thing -> {
            FunctionalIterator<? extends Attribute> attrs = thing.getHas(attributeType);
            if (!attrs.hasNext())
                throw exception(TypeDBException.of(OWS_KEY_PRECONDITION_OWNERSHIP_KEY_TOO_MANY, vertex.label(), attVertex.label()));
            Attribute attr = attrs.next();
            if (attrs.hasNext())
                throw exception(TypeDBException.of(OWS_KEY_PRECONDITION_OWNERSHIP_KEY_MISSING, vertex.label(), attVertex.label()));
            else if (compareSize(attr.getOwners(this), 1) != 0) {
                throw exception(TypeDBException.of(OWNS_KEY_PRECONDITION_UNIQUENESS, attVertex.label(), vertex.label()));
            }
        });
        ownsEdge.delete();
    } else if (getInstances().first().isPresent()) {
        throw exception(TypeDBException.of(OWNS_KEY_PRECONDITION_NO_INSTANCES, vertex.label(), attVertex.label()));
    }
    ownsKeyEdge = vertex.outs().put(OWNS_KEY, attVertex);
    if (getSupertype().declaredOwns(false).findFirst(attributeType).isPresent())
        ownsKeyEdge.overridden(attVertex);
}

Example 2 with OWNS

use of com.vaticle.typedb.core.graph.common.Encoding.Edge.Type.OWNS in project grakn by graknlabs.

the class ThingTypeImpl method ownsAttribute.

private void ownsAttribute(AttributeTypeImpl attributeType) {
    validateIsNotDeleted();
    Forwardable<AttributeType, Order.Asc> owns = getSupertypes().filter(t -> !t.equals(this)).mergeMap(ThingType::getOwns, ASC);
    if (owns.findFirst(attributeType).isPresent()) {
        throw exception(TypeDBException.of(OWNS_ATT_NOT_AVAILABLE, attributeType.getLabel()));
    }
    TypeVertex attVertex = attributeType.vertex;
    TypeEdge keyEdge;
    if ((keyEdge = vertex.outs().edge(OWNS_KEY, attVertex)) != null)
        keyEdge.delete();
    vertex.outs().put(OWNS, attVertex);
}