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Code between sessionFactory.openSession() and session.close():

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I want to insert an objet in a database, but the database changes although I'm never committing the a transaction and I'm never flushing the session. It is a big problem...

public boolean vende(Venta venta) {
session = SessionAccess.getSession();
try{
Salida salida = new Salida(new java.util.GregorianCalendar() //fecha
, String.valueOf("25") //ultimoNumero
, false //procesado
, false //contabilidad
, null //observaciones
, null //cobro
, null //bodega
, null //tipoMovimiento
, null //tipoDocumento
, null //cliente
, null //detalles
, null); //empleado

session.saveOrUpdate(salida);
SessionAccess.closeSession();
}catch(HibernateException e){
Logger.getLogger(this.getClass()).error("Error al realizar la venta: ", e);
return false;
}catch(Exception e){
;
}
SessionAccess.closeSession();
return true;
}

please, help me.

Regards

Luis

A session is automatically flushed when it is closed. If you don't want an associated instance to have its changes saved you could evict it using session.evict(), but I do not understand the purpose of calling saveOrUpdate on a newly created instance if you do not want it to be saved in the first place.