[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-2135) Hibernate Deserialization: In org.hibernate.type.SerializableType the code makes a test for the return of a null object by simply testing the object as to whether or not it is null.

[Steve Ebersole (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2135?page=all ]

Steve Ebersole updated HHH-2135:
--------------------------------

    Fix Version: 3.2.1
       Priority: Trivial  (was: Major)

> Hibernate Deserialization:  In org.hibernate.type.SerializableType the code makes a test for the return of a null object by simply testing the object as to whether or not it is null.
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>          Key: HHH-2135
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2135
>      Project: Hibernate3
>         Type: Improvement

>     Versions: 3.2.0.cr5
>  Environment: HIbernate 3.2.1 & NCR TeradataJBOss 4.0.x & JBoss Cache 1.2.4
>     Reporter: Lamon Gray
>     Assignee: Steve Ebersole
>     Priority: Trivial
>      Fix For: 3.2.1

>
>
> In org.hibernate.type.SerializableType the code makes a test for the return of a null object by simply testing the object as to whether or not it is null.
> public Object get(ResultSet rs, String name) throws HibernateException, SQLException {
> byte[] bytes = (byte[]) Hibernate.BINARY.get(rs, name);
> if ( bytes==null) {
> return null;
> }
> else {
> return fromBytes(bytes);
> }
> }
> Fairly reasonable, however in my testing of the Teradata dialect i am finding that often the value in the column is null but that the return is coming back as an empty array. The following code would seem to be a bit more robust in my opinion:
> public Object get(ResultSet rs, String name) throws HibernateException, SQLException {
> byte[] bytes = (byte[]) Hibernate.BINARY.get(rs, name);
> if ( bytes==null || Array.getLength(bytes)==0) {
> return null;
> }
> else {
> return fromBytes(bytes);
> }
> }
> Can someone tell me if this is done this way for a reason? Or maybe the JDBC driver is returning the incorrect value (IE. it should be returning a null value as opposed to an empty array)?

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