private boolean affectationTask(String taskCode, String attribute, Value exp) {
final TaskImpl t = getOrCreateTask(taskCode);
final TaskAttribute att = TaskAttribute.fromString(attribute);
if (att == TaskAttribute.START) {
t.setStart(((ValueTime) exp).getValue());
return true;
}
if (att == TaskAttribute.DURATION) {
t.setDuration(((ValueInt) exp).getValue());
return true;
}
if (att == TaskAttribute.LOAD) {
t.setLoad(((ValueInt) exp).getValue());
return true;
}
throw new UnsupportedOperationException();
}
