Examples with FunctionalProducer com.vaticle.typedb.core.concurrent.producer.FunctionalProducer used on opensource projects

Example 1 with FunctionalProducer

use of com.vaticle.typedb.core.concurrent.producer.FunctionalProducer in project grakn by graknlabs.

the class GraphProcedure method producer.

@Override
public FunctionalProducer<VertexMap> producer(GraphManager graphMgr, Traversal.Parameters params, Set<Identifier.Variable.Retrievable> filter, int parallelisation) {
    if (LOG.isTraceEnabled()) {
        LOG.trace(params.toString());
        LOG.trace(this.toString());
    }
    assertWithinFilterBounds(filter);
    if (startVertex().id().isRetrievable() && filter.contains(startVertex().id().asVariable().asRetrievable())) {
        return async(startVertex().iterator(graphMgr, params).map(// TODO we can reduce the size of the distinct() set if the traversal engine doesn't overgenerate as much
        v -> new GraphIterator(graphMgr, v, this, params, filter).distinct()), parallelisation);
    } else {
        // TODO we can reduce the size of the distinct() set if the traversal engine doesn't overgenerate as much
        return async(startVertex().iterator(graphMgr, params).map(v -> new GraphIterator(graphMgr, v, this, params, filter)), parallelisation).distinct();
    }
}