Examples with ThingVertex com.vaticle.typedb.core.graph.vertex.ThingVertex used on opensource projects

Example 1 with ThingVertex

use of com.vaticle.typedb.core.graph.vertex.ThingVertex in project grakn by graknlabs.

the class RelationIterator method createIterator.

private Forwardable<ThingVertex, Order.Asc> createIterator(int pos) {
    StructureEdge<?, ?> edge = edges.get(pos);
    ThingVertex player = answer.get(edge.to().id().asVariable().asRetrievable()).asThing();
    return SortedIterators.Forwardable.merge(iterate(edge.asNative().asRolePlayer().types()).map(roleLabel -> {
        TypeVertex roleVertex = graphMgr.schema().getType(roleLabel);
        return player.ins().edge(ROLEPLAYER, roleVertex).fromAndOptimised().filter(relRole -> relationTypes.contains(relRole.key().type().properLabel()));
    }), ASC).filter(relRole -> !scoped.contains(relRole.value())).mapSorted(relRole -> {
        scoped.record(pos, relRole.value());
        return relRole.key();
    }, relation -> new KeyValue<>(relation, null), ASC);
}

Example 2 with ThingVertex

use of com.vaticle.typedb.core.graph.vertex.ThingVertex in project grakn by graknlabs.

the class RelationIterator method proposeNext.

private void proposeNext() {
    assert state == State.EMPTY;
    Forwardable<ThingVertex, Order.Asc> relationIterator = getIterator(proposer);
    // relationIterator requires clearing of scoped roles as it is stateful
    scoped.clear();
    while (relationIterator.hasNext()) {
        ThingVertex newRelation = relationIterator.next();
        if (!newRelation.equals(relation)) {
            relation = newRelation;
            state = State.PROPOSED;
            return;
        }
    }
    state = State.COMPLETED;
}