Ulang Spring mvc Service

TamuServiceImpl.java

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package id.web.rohman.ulangspringservice.service.impl;

import id.web.rohman.ulangspringservice.model.Tamu;
import id.web.rohman.ulangspringservice.service.api.TamuService;
import java.util.List;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

/**
 *
 * @author syahril
 */
@Service("tamuService") @Transactional
public class TamuServiceImpl implements TamuService{
    
    @Autowired
    private SessionFactory sessionFactory;
    
    private void saveEntity(Object object)
    {
        sessionFactory.getCurrentSession().saveOrUpdate(object);
    }
    public List<Tamu> listTamu() {
        return sessionFactory.getCurrentSession().createCriteria(Tamu.class).list();
    }

    public Tamu findTamuById(Integer id) {
        return (Tamu) sessionFactory.getCurrentSession().get(Tamu.class, id);
    }

    public void saveTamu(Tamu tamu) {
        this.saveEntity(tamu);
    }
    
    
}