if (executionPeriodID == null) {
if (getViewState().getAttribute("executionPeriodID") == null) {
	public Integer getExecutionPeriodID() throws FenixFilterException, FenixServiceException {		if (executionPeriodID == null) {			final Collection<ExecutionPeriod> executionPeriods = getExecutionPeriods();			if (executionPeriods != null) {				for (final ExecutionPeriod executionPeriod : executionPeriods) {					if (executionPeriod.getState() == PeriodState.CURRENT) {						this.executionPeriodID = executionPeriod.getIdInternal();						break;					}				}			}		}		return executionPeriodID;	}