DAO.Hibernate.GenericDAO.java Source code

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Here is the source code for DAO.Hibernate.GenericDAO.java

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package DAO.Hibernate;

import POJO.*;
import interfaceDAO.IGenericDAO;
import java.util.List;
import org.hibernate.*;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import java.io.Serializable;
import org.springframework.stereotype.Component;

/**
 *
 * @author Peter
 */
public class GenericDAO<T, PK extends Serializable> implements IGenericDAO<T, PK> {
    private Session currentSession;
    private Transaction currentTransaction;
    private Class<T> type;

    //Contructor om het type te defineren.
    public GenericDAO(Class<T> type) {
        this.type = type;
    }

    public Session getCurrentSession() {
        return currentSession;
    }

    public void setCurrentSession(Session currentSession) {
        this.currentSession = currentSession;
    }

    public Transaction getCurrentTransaction() {
        return currentTransaction;
    }

    public void setCurrentTransaction(Transaction currentTransaction) {
        this.currentTransaction = currentTransaction;
    }

    public Session openCurrentSession() {
        currentSession = getSessionFactory().openSession();
        return currentSession;
    }

    public Session openCurrentSessionWithTransaction() {
        currentSession = getSessionFactory().openSession();
        currentTransaction = currentSession.beginTransaction();
        return currentSession;
    }

    public void closeCurrentSession() {
        currentSession.close();
    }

    public void closeCurrentSessionWithTransaction() {
        currentSession = getSessionFactory().openSession();
        currentTransaction.commit();
        currentSession.close();
    }

    public SessionFactory getSessionFactory() {
        StandardServiceRegistry ssrb = new StandardServiceRegistryBuilder().configure("hibernate.cfg.xml").build();
        MetadataSources ms = new MetadataSources(ssrb);
        ms.addAnnotatedClass(Bestelling.class);
        ms.addAnnotatedClass(BestellingArtikel.class);
        ms.addAnnotatedClass(Artikel.class);
        ms.addAnnotatedClass(Klant.class);
        ms.addAnnotatedClass(Adres.class);
        ms.addAnnotatedClass(Account.class);
        SessionFactory sf = ms.buildMetadata().buildSessionFactory();
        return sf;
    }

    @Override
    public void save(T entity) {
        openCurrentSessionWithTransaction();
        getCurrentSession().save(entity);
        closeCurrentSessionWithTransaction();
    }

    @Override
    public Object findById(PK id) {
        openCurrentSessionWithTransaction();
        T entity = (T) getCurrentSession().get(type, id);
        closeCurrentSessionWithTransaction();
        return entity;
    }

    @Override
    public void delete(T entity) {
        openCurrentSessionWithTransaction();
        getCurrentSession().delete(entity);
        closeCurrentSessionWithTransaction();
    }

    @Override
    public List<T> findAll() {
        openCurrentSessionWithTransaction();
        List<T> entities = (List<T>) getCurrentSession().createCriteria(type).list();
        closeCurrentSessionWithTransaction();
        return entities;

    }

    @Override
    public void update(T entity) {
        openCurrentSessionWithTransaction();
        getCurrentSession().update(entity);
        closeCurrentSessionWithTransaction();
    }

}