protected static function _cache_query_result($cache_key, $value, $table_name = null, $connection_name = self::DEFAULT_CONNECTION)
{
if (isset(self::$_config[$connection_name]['cache_query_result']) and is_callable(self::$_config[$connection_name]['cache_query_result'])) {
return call_user_func_array(self::$_config[$connection_name]['cache_query_result'], array($cache_key, $value, $table_name, $connection_name));
} elseif (!isset(self::$_query_cache[$connection_name])) {
self::$_query_cache[$connection_name] = array();
}
self::$_query_cache[$connection_name][$cache_key] = $value;
}