private IntegerVariable createFeatureVariable(Feature feature) {
String id = feature.getId();
// an unbound feature has cardinality [0..1],
// a selected feature has cardinality [1..1],
// a deselected feature has cardinality [0..0]
int minCardinality = (FeatureState.SELECTED.equals(feature.getConfigurationState())) ? 1 : 0;
int maxCardinality = (FeatureState.DESELECTED.equals(feature.getConfigurationState())) ? 0 : 1;
log.debug(
"Create IntegerVariable for '" + id + "' [" + minCardinality + "," + maxCardinality + "].");
IntegerVariable intNodeVariable = Choco.makeIntVar(id, minCardinality, maxCardinality);
getModel().addVariable(intNodeVariable);
nodeVariables.put(id, intNodeVariable);
return intNodeVariable;
}
