facets-8.x-1.x-dev/src/QueryType/QueryTypeInterface.php

<?php

namespace Drupal\facets\QueryType;

/**
 * The interface defining the required methods for a query type.
 */
interface QueryTypeInterface {

  /**
   * Adds facet info to the query using the backend native query object.
   */
  public function execute();

  /**
   * Builds the facet information, so it can be rendered.
   */
  public function build();

}