private function getCommand(DatabaseObjectInterface $databaseObject, $isCreate = true)
    {
        if ($databaseObject instanceof Column) {
           $command = $this->container
                ->get($isCreate ? 'rentgen.add_column' : 'rentgen.drop_column')
                ->setColumn($databaseObject);
        } elseif ($databaseObject instanceof ConstraintInterface) {
            $command = $this->container
                ->get($isCreate ? 'rentgen.add_constraint' : 'rentgen.drop_constraint')
                ->setConstraint($databaseObject);
        } elseif ($databaseObject instanceof Index) {
            $command = $this->container
                ->get($isCreate ? 'rentgen.create_index' : 'rentgen.drop_index')
                ->setIndex($databaseObject);
        } elseif ($databaseObject instanceof Schema) {
           $command = $this->container
                ->get($isCreate ? 'rentgen.create_schema' : 'rentgen.drop_schema')
                ->setSchema($databaseObject);
        } elseif ($databaseObject instanceof Table) {
            $command = $this->container
                ->get($isCreate ? 'rentgen.create_table' : 'rentgen.drop_table')
                ->setTable($databaseObject);
        } else {
            throw new \Exception(sprintf("Class %s is not supported", get_class($databaseObject)));
        }

        return $command;
    }