public static boolean isInvoiceAlreadyStored(Invoice invoice) {
List<Invoice> results =
getObjectsByRow(Invoice.class, "po_number", EqualityRelation.E, invoice.getPoNumber());
boolean emptySet = results.isEmpty();
if (!emptySet) {
Invoice oldInvoice = results.get(0);
invoice.setId(oldInvoice.getId());
saveOrUpdateInvoice(invoice);
return true;
}
return false;
}
