Package com.jalios.jcms.db

Interface Transaction<T>

  • Type Parameters:
    T - type of the result object
    public interface Transaction<T>
    Interface for Hibernate code. To be used with HibernateUtil.executeTransaction(Transaction), often as anonymous classes within a method implementation.

    Examples: 

     // Example with id as result
 String myDataId = HibernateUtil.executeTransaction(new Transaction<String>() {
   @Override
   public String execute(Session session) {
     MyData myData = new MyData();
     myData.setTitle("new title");
     [...]
     myData.performCreate(admin);
     return myData.getId();
   }
 });
 
 // Example with domain object as result
 MyData myData = HibernateUtil.executeTransaction(new Transaction<MyData>() {
   @Override
   public MyData execute(Session session) {
     MyData myData = new MyData();
     myData.setTitle("new title");
     [...]
     myData.performCreate(admin);
     return myData;
   }
 });
 
 // Example with collection of domain objects as result
 List<MyData> myDataList = HibernateUtil.executeTransaction(new Transaction<List<MyData>>() {
   @Override
   public List<MyData> execute(Session session) {
     Criteria criteria = HibernateUtil.getSession().createCriteria(MyData.class);
     criteria.add(Restrictions.ilike("title", "%title%"));
     return criteria.list();
   }
 });
 
 // Example with no result
 
 HibernateUtil.executeTransaction(new Transaction<Void>() { }
   {@literal @}Override
   public Void execute(Session session) {
     Member member = voterMembers.get(index);
     VoteManager.getInstance().performVote(article, member, true);
     article.trackReader(member);
     return null;
   }
 );