Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.mycompany.Services.implementation; import com.mycompany.Gym.Invoice; import com.mycompany.Services.InvoiceCrudServ; import java.util.List; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; /** * * @author student */ public class InvoiceCrudImpl implements InvoiceCrudServ { @Override @Transactional(propagation = Propagation.SUPPORTS) public Invoice find(String id) { return null; } @Override @Transactional(propagation = Propagation.MANDATORY) public Invoice persist(Invoice entity) { return null; } @Override @Transactional(propagation = Propagation.REQUIRES_NEW) public Invoice merge(Invoice entity) { return null; } @Override @Transactional(propagation = Propagation.REQUIRED) public Invoice remove(Invoice entity) { return null; } @Override @Transactional(propagation = Propagation.NOT_SUPPORTED) public List<Invoice> findAll() { return null; } }