public Collection<Bill> getByClientID(int clientID) {
Collection<Bill> all = _gateway.getAll();
ArrayList<Bill> results = new ArrayList<Bill>();
Client client;
for (Bill q : all) {
client = q.getClient();
if (client != null && client.getID() == clientID) {
results.add(q);
}
}
return results;
}
public Collection<Bill> getAll() {
return _gateway.getAll();
}
public Collection<Package> getProductPackageList() {
return _gateway.getAll();
}