/**
  * Get Latest Leave period start date and month 
  * @param bool $forceReload (if false, will use cached value from previous method call)
  * value is cached in a static constant.
  * @return type
  */
 public function getCurrentLeavePeriodStartDateAndMonth($forceReload = false)
 {
     if ($forceReload || is_null(self::$currentLeavePeriodStartDateAndMonth)) {
         self::$currentLeavePeriodStartDateAndMonth = $this->getLeavePeriodDao()->getCurrentLeavePeriodStartDateAndMonth();
     }
     return self::$currentLeavePeriodStartDateAndMonth;
 }