How to use

OExecutionPlan

in

com.orientechnologies.orient.core.sql.executor

public int usedIndexes(OGraph graph) {
 OExecutionPlan executionPlan = this.explain(graph).get();
 if (target > 1) {
  return executionPlan.getSteps().stream().filter(step -> (step instanceof GlobalLetQueryStep)).map(s -> {
   GlobalLetQueryStep subStep = (GlobalLetQueryStep) s;
   return (int) subStep.getSubExecutionPlans().stream()
     .filter(plan -> plan.getSteps().stream().filter((step) -> step instanceof FetchFromIndexStep).count() > 0).count();
  }).reduce(0, (a, b) -> a + b);
 } else {
  return (int) executionPlan.getSteps().stream().filter((step) -> step instanceof FetchFromIndexStep).count();
 }
}

@Override public OResult next() {
 if (!hasNext) {
  throw new IllegalStateException();
 }
 OResultInternal result = new OResultInternal();
 getExecutionPlan().ifPresent(x -> result.setProperty("executionPlan", x.toResult()));
 getExecutionPlan().ifPresent(x -> result.setProperty("executionPlanAsString", x.prettyPrint(0, 3)));
 hasNext = false;
 return result;
}