return attends; }
	public List<Attends> readAttendsByExecutionPeriod(ExecutionPeriod executionPeriod) {		List<Attends> attends = new ArrayList<Attends>();		for (Attends attend : this.getAssociatedAttends()) {			if (attend.getDisciplinaExecucao().getExecutionPeriod().equals(executionPeriod)) {				attends.add(attend);			}		}		return attends;	}