Dropwizard @UnitOfWork with Manual Transactions

Resource.java

    @GET
    @Path("/update")
    @UnitOfWork(transactional = false)
    public World update(World world) {
        return transactionDao.updatesWorld(world);
    }

TransactionDAO.java

Class TransactionDAO extends extends AbstractDAO<World> {
    @Override
    public World updatesQueries(World world) {
        World world = null;
        Transaction transaction = currentSession().beginTransaction();
        try {
            world = persist(world);
            transaction.commit();
        } catch (Exception e) {
            transaction.rollback();
            throw new RuntimeException(e);
        }
        return world;
    }
    
}