public InvoicelineEntity removeInvoiceline(InvoicelineEntity invoiceline) { getInvoicelines().remove(invoiceline); invoiceline.setInvoice(null); return invoiceline; }
public InvoicelineEntity addInvoiceline(InvoicelineEntity invoiceline) { getInvoicelines().add(invoiceline); invoiceline.setInvoice(this); return invoiceline; }