Insert in Batch mode in fluent nhibernate and Oracle does not work

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C#

Oracle

NHibernate

I read the another answer here and in the WEB but I can not found a definitive anwser about if it is possible to insert in batch mode with fluent nhibernate and ORACLE. I try this:

private void InsertData(IEnumerable<CopLogNegociosDetail> coplogDetailList) 
    { 
        var session = this.Repository.Session.SessionFactory.OpenStatelessSession(); 
        session = session.SetBatchSize(150); 
        ITransaction tx = session.BeginTransaction(IsolationLevel.Serializable); 
        try 
        { 
            foreach (CopLogNegociosDetail copLogNegociosDetail in coplogDetailList) 
            { 
               session.Insert(copLogNegociosDetail); 
            } 
        } 
        catch (Exception) 
        { 
            tx.Rollback(); 
            throw; 
        } 
 
        tx.Commit(); 
        session.Close(); 
    }

But with the nhibernate profiler I can see that insert operations are individual. That work with Update Operation, but not with insert. I tryed also with normal Session, with SaveAndUpdate. Save and all other method, and also does not work.

Any Idea?

Thanks