/**
  * @deprecated since 2.1
  * Get instance of PHPCreator to use for storing and loading
  * look up table.
  *
  * @return eZPHPCreator return instance of eZPHPCreator
  * @todo Refactor with ezcPhpGenerator
  *       http://ezcomponents.org/docs/api/trunk/classtrees_PhpGenerator.html
  */
 protected function getPHPCreatorInstance()
 {
     if (empty(self::$PHPCreator)) {
         self::$PHPCreator = new eZPHPCreator(eZDIR::path(array(eZSys::storageDirectory(), ezfSolrDocumentFieldName::LOOKUP_FILEDIR)), ezfSolrDocumentFieldName::LOOKUP_FILENAME);
     }
     return self::$PHPCreator;
 }