code: function(elastic, collectionDefinition, params) {
    this.elastic = elastic;
    this.params = params;
    this.setQuery(collectionDefinition.query);
    return this;
  }
docs: Created by Dominic Böttger on 30.05.14.
  INSPIRATIONlabs GmbH
  http://www.inspirationlabs.com