Java tutorial
/* Copyright 2009 - 2010 Under Dusken Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package no.dusken.barweb.service.impl; import no.dusken.barweb.model.Invoice; import no.dusken.barweb.model.Transaksjon; import no.dusken.barweb.service.InvoiceService; import no.dusken.barweb.service.InvoiceTransaksjonService; import no.dusken.barweb.service.TransaksjonService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Isolation; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; import java.util.List; /** * @author Marvin B. Lillehaug <lillehau@underdusken.no> */ @Service("invoiceTransaksjonService") @Transactional(propagation = Propagation.SUPPORTS, isolation = Isolation.DEFAULT, readOnly = true) public class InvoiceTransaksjonServiceImpl implements InvoiceTransaksjonService { @Autowired private InvoiceService invoiceService; @Autowired private TransaksjonService transaksjonService; @Transactional(propagation = Propagation.REQUIRED, isolation = Isolation.DEFAULT, readOnly = false) public Invoice saveInvoiceAndTransaksjons(Invoice invoice, List<Transaksjon> transaksjons) { // invoice = invoiceService.save(invoice); for (Transaksjon t : transaksjons) { t.setInvoice(invoice); } transaksjonService.save(transaksjons); return invoice; } @Transactional(propagation = Propagation.REQUIRED, isolation = Isolation.DEFAULT, readOnly = false) public void deleteInvoiceUpdateTransaksjons(Invoice invoice, List<Transaksjon> transaksjons) { for (Transaksjon t : transaksjons) { t.setInvoice(null); transaksjonService.save(t); } invoiceService.delete(invoice); } }