How to use

Cardinality

in

it.tidalwave.bluebill.observation

/***************************************************************************
 *
 * Creates a cardinality as a precise value.
 *
 * @param  count  the value
 *
 **************************************************************************/
@Nonnull
public static Cardinality valueOf (@Nonnegative int count)
 {
  return new Cardinality(count, count, false);
 }

 /*******************************************************************************************************************
  *
  * {@inheritDoc}
  *
  ******************************************************************************************************************/
 @Nonnull
 public ChangeBuilder without (final @Nonnull ObservationItem observationItem)
  {
   for (final Iterator<ObservableWithCardinality> i = observablesWithCardinality.iterator(); i.hasNext(); )
    {
     final ObservableWithCardinality observableWithCardinality = i.next();
     // TODO: is it enough to compare the cardinality? What about extra attributes?
     if (observableWithCardinality.observable.equals(observationItem.getObservable()) &&
       observableWithCardinality.cardinality.equals(observationItem.getCardinality()))
      {
       i.remove();
       initializerMap.remove(observableWithCardinality);
       break;
      }
    }
   return this;
  }
}

 @Override @Nonnull
 public void marshal (final @Nonnull As entity, final @Nonnull Context context)
  {
   super.marshal(entity, context);
   final ObservationItem observationItem = (ObservationItem)entity;
   context.addStatement(observationItem, Vocabulary.RDF_TYPE, Vocabulary.FOAF_DOCUMENT);
   context.addStatement(observationItem, Vocabulary.RDF_TYPE, Vocabulary.OBSERVATION_ITEM);
   context.addStatement(observationItem, Vocabulary.FOAF_TOPIC, observationItem.getObservable());
   final Cardinality cardinality = observationItem.getCardinality();
   if (!cardinality.equals(Cardinality.UNDEFINED))
    {
     context.addStatement(observationItem, Vocabulary.CARDINALITY, cardinality);
    }
  }
}

@Nonnull
public static Cardinality approxValueOf (@Nonnegative int count)
 {
  return new Cardinality(count, count, true);
 }

/***************************************************************************
 *
 * Creates a cardinality as a closed range.
 *
 * @param  min  the lower limit of the range
 * @param  max  the upper limit of the range
 *
 **************************************************************************/
@Nonnull
public static Cardinality rangeOf (@Nonnegative int min, @Nonnegative int max)
 {
  return new Cardinality(min, max, false);
 }