[jboss-user] [EJB 3.0] - Persisting an Entity Bean with a null attribute throws Trans

[idtechnology]

Hi there,
I'm a JBOSS/EJB3 newbie. 
I have installed JBOSS 4.0.5 GA, JDK 1.5.0_05, Eclipse 3.2+JBOSSIDE 1.6.0 plugin. MYSQL 5, mysql-connector-java-3.1.13 driver

I'm trying to persist some entity beans under transaction. One of these beans has a null (non-key) attribute. Either When I call persist or when I perform a readonly query on that object I get a 

javax.persistence.TransactionRequiredException: EntityManager must be access within a transaction

@Entity
@Table(name = "person", catalog = "take2", uniqueConstraints = {})
public class Person implements java.io.Serializable {
    // Fields
    protected long idPerson;
    protected String name;
    protected String srname;
    protected String gender;
    protected Integer bthdateDD;
    protected Integer bthdateMm;
    protected Integer bthdateyyyy;
    protected String sInsCOde;
    protected Long job;
    protected Long bthplace;
    public static final String GENDER_M = "M";
    public static final String GENDER_F = "F";
....
}

Here I have a managed bean to create an instance of Person that I pass to an transacted EJB to manage persistence under transaction.

        private PersonBean createDefaultPerson()
        {
        	PersonBean pb = new PersonBean();
        	pb.setSrName("Siciliano");
        	pb.setName("Andrea");
        	pb.setGender(Persona.SESSO_M);
        	pb.setBthDateDD(19);
        	pb.setBthDateMM(11);
                //BthDateyyyy is not set so it is null in the managed bean
        	pb.setAge(33);
        	pb.setBthplace(9852L);
                .....
        	return pb;
        }

then the ejb persists the bean but I get the exception..

 @TransactionAttribute(TransactionAttributeType.REQUIRED)
  public MyBean insDati(PersonBean abean)
  {
...
...
entitymanager.persist(abean);
..
..
}

the exception does not triggers if the PersonaBean instance has all its attributes set to not null values.
The database does not have a not null constraints on the non key values.
+-----------------+------------------+------+-----+---------+
| Field           | Type             | Null | Key | Default | Extra|
+-----------------+------------------+------+-----+---------+
| idPerson      | bigint(20)       | NO   | PRI | NULL    | auto_increment |
| name          | varchar(45)      | YES  |     | NULL    |    
| srname       | varchar(45)      | YES  |     | NULL    |  
| gender        | varchar(1)       | YES  |     | NULL    |      
| bthdateDD   | int(10) unsigned | YES  |     | NULL    
| bthdateMM   | int(10) unsigned | YES  |     | NULL    
| bthdateyyyy | int(10) unsigned | YES  |     | NULL   
| sInsid   | varchar(16)      | YES  |     | NULL    |   
| job     | bigint(20)       | YES  |     | NULL    |     
| bthplace    | bigint(20)       | YES  |     | NULL    |     
+-----------------+------------------+------+-----+---------+

What's goin' on?

thanks
:G


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