private boolean containInstance(Instance sel, Slot slot, Instance instance) {
if (itsInstance == null) return false;
Collection instances = sel.getOwnSlotValues(slot);
Iterator i = instances.iterator();
while (i.hasNext()) {
Instance tmpInstance = (Instance) i.next();
if (tmpInstance.equals(instance)) return true;
}
return false;
}
public Collection search() {
if (specification.getType() == null) return null;
String slotType = specification.getType();
if (!slotType.toLowerCase().equals("cls")) return null;
// Here we first test the function based on the simplest Instance cases
ArrayList resultInstances = new ArrayList();
Collection instances = itsInstances;
Iterator i = instances.iterator();
Slot slot = itsWidget.getKB().getSlot(specification.getName());
while (i.hasNext()) {
Instance instance = (Instance) i.next();
if (testInstance(getTestIndex(specification.getConstraint()), instance, slot))
resultInstances.add(instance);
}
return resultInstances;
}
// This is used for Query test
public Collection search(Collection instances, Slot slot, String operation, Object obj) {
ArrayList resultInstances = new ArrayList();
Iterator i = instances.iterator();
String value = (String) (((Instance) obj).getBrowserText());
while (i.hasNext()) {
Instance instance = (Instance) i.next();
if (testInstance(getTestIndex(operation), instance, slot, value))
resultInstances.add(instance);
}
return resultInstances;
}