How to use

SelectQueryEngine

in

org.apache.druid.query.select

@Parameterized.Parameters(name = "{0}:descending={1}")
public static Iterable<Object[]> constructorFeeder()
{
 return QueryRunnerTestHelper.cartesian(
   QueryRunnerTestHelper.makeQueryRunners(
     new SelectQueryRunnerFactory(
       toolChest,
       new SelectQueryEngine(),
       QueryRunnerTestHelper.NOOP_QUERYWATCHER
     )
   ),
   Arrays.asList(false, true)
 );
}
private final QueryRunner runner;

 @Override
 public Sequence<Result<SelectResultValue>> run(
   QueryPlus<Result<SelectResultValue>> queryPlus,
   Map<String, Object> responseContext
 )
 {
  Query<Result<SelectResultValue>> input = queryPlus.getQuery();
  if (!(input instanceof SelectQuery)) {
   throw new ISE("Got a [%s] which isn't a %s", input.getClass(), SelectQuery.class);
  }
  return engine.process((SelectQuery) input, segment);
 }
}

final Map<String, Object> theEvent = singleEvent(
  EventHolder.timestampKey,
  timestampColumnSelector,

final Map<String, Object> theEvent = singleEvent(
  EventHolder.timestampKey,
  timestampColumnSelector,

    selectConfigSupplier
  ),
  new SelectQueryEngine(),
  QueryBenchmarkUtil.NOOP_QUERYWATCHER
);

 @Override
 public Sequence<Result<SelectResultValue>> run(
   QueryPlus<Result<SelectResultValue>> queryPlus,
   Map<String, Object> responseContext
 )
 {
  Query<Result<SelectResultValue>> input = queryPlus.getQuery();
  if (!(input instanceof SelectQuery)) {
   throw new ISE("Got a [%s] which isn't a %s", input.getClass(), SelectQuery.class);
  }
  return engine.process((SelectQuery) input, segment);
 }
}

  configSupplier
),
new SelectQueryEngine(
),
QueryRunnerTestHelper.NOOP_QUERYWATCHER

  SELECT_CONFIG_SUPPLIER
),
new SelectQueryEngine(),
QueryRunnerTestHelper.NOOP_QUERYWATCHER