WrittenEvaluationSpaceOccupation occupation =
(WrittenEvaluationSpaceOccupation) SpaceUtils.getFirstOccurrenceOfResourceAllocationByClass(room, this);
occupation = occupation == null ? new WrittenEvaluationSpaceOccupation(room) : occupation;
occupation.edit(this);
return occupation;
} else {
return null;
}
}