/**
  * convert plain text id to binary id
  * 
  * @param  string  $groupId
  * @return string
  */
 protected function _encodeGroupId($groupId)
 {
     switch ($this->_groupUUIDAttribute) {
         case 'objectguid':
             return Tinebase_Ldap::encodeGuid($groupId);
             break;
         default:
             return $groupId;
             break;
     }
 }
 /**
  * convert plain text id to binary id
  * 
  * @param  string  $accountId
  * @return string
  */
 protected function _encodeAccountId($accountId)
 {
     switch ($this->_userUUIDAttribute) {
         case 'objectguid':
             return Tinebase_Ldap::encodeGuid($accountId);
             break;
         default:
             return $accountId;
             break;
     }
 }