@Override
    protected boolean filter(final Traverser.Admin<S> traverser) {
        return TraversalUtil.test((Traverser.Admin) traverser, this.whereTraversal);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/filter/WhereTraversalStep.java