com.whynot.checkOtrade.web.dao.ItemRepository.java Source code

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Here is the source code for com.whynot.checkOtrade.web.dao.ItemRepository.java

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package com.whynot.checkOtrade.web.dao;

import com.whynot.checkOtrade.web.domain.Item;
import com.whynot.checkOtrade.web.domain.PriceList;
import com.whynot.checkOtrade.web.domain.Shop;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Hibernate;
import org.hibernate.ObjectNotFoundException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

/**
 * <p> DAO ?? ? ? , ? .</p>
 * @author potapov
 */
@Repository
@Transactional(readOnly = true)
public class ItemRepository {

    @Autowired
    SessionFactory sessionFactory;

    @Transactional
    public Item create(Item entity) {
        Session session = sessionFactory.openSession();

        Long id = (Long) session.save(entity);

        if (session != null) {
            session.flush();
            session.close();
        }

        entity = findByID(id);
        return entity;
    }

    public Item findByID(long id) {
        Session session = sessionFactory.openSession();
        Criteria cr = session.createCriteria(Item.class);
        cr.add(Restrictions.eq("id", id));
        Item entity = (Item) cr.uniqueResult();
        try {
            Hibernate.initialize(entity);
        } catch (ObjectNotFoundException e) {
            System.out.println("Item object with id " + id + " not found");
            entity = null;
        } finally {
            if (session != null) {
                session.flush();
                session.close();
            }
        }

        return entity;
    }

    public Item findByName(String name) {
        Session session = sessionFactory.openSession();
        Criteria cr = session.createCriteria(Item.class);
        cr.add(Restrictions.eq("name", name));
        Item entity = (Item) cr.uniqueResult();
        try {
            Hibernate.initialize(entity);
        } catch (ObjectNotFoundException e) {
            System.out.println("Item object with id " + name + " not found");
            entity = null;
        } finally {
            if (session != null) {
                session.flush();
                session.close();
            }
        }

        return entity;
    }

    public List<Item> findAll() {
        Session session = sessionFactory.openSession();
        session.beginTransaction();
        Criteria cr = session.createCriteria(Item.class);
        List<Item> entitys = cr.list();
        session.getTransaction().commit();
        if (session != null) {
            session.flush();
            session.close();
        }

        return entitys;
    }

    public boolean delete(Item entity) {
        Session session = sessionFactory.openSession();

        session.delete(entity);

        if (session != null) {
            session.flush();
            session.close();
        }

        return findByID(entity.getId()) == null;
    }

    public Item update(Item entity) {
        Session session = sessionFactory.openSession();

        session.update(entity);

        if (session != null) {
            session.flush();
            session.close();
        }

        return findByID(entity.getId());
    }

}