Hibernate.cfg et multiple <session-factory>
Bonjour,
Je cherche à améliorer mon HibernateFactory afin de gérer des sources de données différentes au sein d'un même fichier de conf !
J'ai donc un fichier hibernate.cfg comme ceci :
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| <hibernate-configuration>
<session-factory name="CONFIG_1">
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.url">jdbc:postgresql://monserveur/maBase</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">monPassword</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.jdbc.batch_size">20</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
<property name="show_sql">false</property>
<mapping class="com.monpackage.MaClasse" />
</session-factory>
<session-factory name="CONFIG_2">
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.url">jdbc:postgresql://monserveur/maBase2</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">monPassword</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.jdbc.batch_size">20</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
<property name="show_sql">false</property>
<mapping class="com.monpackage.MonAutreClasse" />
</session-factory>
</hibernate-configuration> |
Je voudrais que mon HibernateFactory prenne en paramètre le "NAME" du noeud "session-factory" pour récupèrer la bonne connexion.
J'ai donc aussi une classe AbstractDAO :
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| public abstract class AbstractDao<T>
{
private Session session;
private Transaction tx;
private Class<T> clazz;
public AbstractDao(Class<T> clazz)
{
this.clazz = clazz;
init();
}
private void init()
{
HibernateFactory.buildIfNeeded();
}
protected void saveOrUpdate(T obj)
{
try
{
startOperation();
session.saveOrUpdate(obj);
tx.commit();
} catch (HibernateException e)
{
handleException(e);
} finally
{
HibernateFactory.close(session);
}
}
protected void delete(T obj)
{
try
{
startOperation();
session.delete(obj);
tx.commit();
} catch (HibernateException e)
{
handleException(e);
} finally
{
HibernateFactory.close(session);
}
}
@SuppressWarnings("unchecked")
public T find(Serializable id)
{
T obj = null;
try
{
startOperation();
obj = (T) session.load(clazz, id);
tx.commit();
} catch (HibernateException e)
{
handleException(e);
} finally
{
HibernateFactory.close(session);
}
return obj;
}
@SuppressWarnings("unchecked")
public List<T> findAll()
{
List<T> objects = new ArrayList<T>(0);
try
{
startOperation();
Query query = session.createQuery("from " + clazz.getName());
objects = (List<T>) query.list();
tx.commit();
} catch (HibernateException e)
{
handleException(e);
} finally
{
HibernateFactory.close(session);
}
return objects;
}
@SuppressWarnings("unchecked")
public List<T> findAll(String property, Object value)
{
List<T> objects = new ArrayList<T>(0);
try
{
startOperation();
Query query = session.createQuery("from " + clazz.getName() + " where " + property + " = '" + value.toString() + "'");
objects = (List<T>) query.list();
tx.commit();
} catch (HibernateException e)
{
handleException(e);
} finally
{
HibernateFactory.close(session);
}
return objects;
}
protected void handleException(HibernateException e) throws HibernateException
{
HibernateFactory.rollback(tx);
e.printStackTrace();
}
private void startOperation() throws HibernateException
{
session = HibernateFactory.openSession();
tx = session.beginTransaction();
}
} |
Cette classe permet de la DAO de façon vraiment primaire ...
Voila mon HibernateFactory :
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| public class HibernateFactory
{
private static SessionFactory sessionFactory;
/**
* @return
* @throws DataAccessLayerException
*/
public static void buildIfNeeded() throws HibernateException
{
if (sessionFactory == null)
{
try
{
AnnotationConfiguration configuration = new AnnotationConfiguration();
sessionFactory = configuration.configure().buildSessionFactory();
} catch (HibernateException e)
{
throw e;
}
}
}
/**
* @return
*/
public static SessionFactory getSessionFactory()
{
return sessionFactory;
}
/**
* @return
* @throws HibernateException
*/
public static Session openSession() throws HibernateException
{
buildIfNeeded();
return sessionFactory.openSession();
}
/**
*
*/
public static void closeFactory()
{
if (sessionFactory != null)
{
try
{
sessionFactory.close();
} catch (HibernateException ignored)
{
System.err.println("Couldn't close SessionFactory");
}
}
}
/**
* @param session
*/
public static void close(Session session)
{
if (session != null)
{
try
{
session.close();
} catch (HibernateException ignored)
{
System.err.println("Couldn't close Session");
}
}
}
/**
* @param tx
*/
public static void rollback(Transaction tx)
{
try
{
if (tx != null)
tx.rollback();
} catch (HibernateException ignored)
{
System.err.println("Couldn't rollback Transaction");
}
}
} |
Donc maintenant je voudrais que mon HibernateFactory puisse lors de "l'openSession" prendre une chaine en paramètre.
Par exemple, dans mon DAO pour mon objet "MaClasse", je ferais un , permettant donc de bien manipuler l'objet sur la bonne connexion.
Merci pour votre aide ...
