i would first look into implementing a TopLinkSession
http://otndnld.oracle.co.jp/document/products/as10g/101320/doc_cd/web.1013/b28219/oracle/toplink/sessions/Session.html
then finally execute the nonSelectingCall:
http://otndnld.oracle.co.jp/document/products/as10g/101320/doc_cd/web.1013/b28219/oracle/toplink/sessions/Session.html#executeNonSelectingSQL_java_lang_String_
HTH
Martin
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> Date: Mon, 4 May 2009 15:36:46 -0300
> From: casmeiron_at_gmail.com
> To: users_at_glassfish.dev.java.net
> Subject: Re: How does the TopLink (present on GF) persist @Serializable Objects?
>
> Sorry, ignore the first lines about abstract class, I was talking about
> other entity.
>
> And also I forgot to set the values to the entity:
> List<String> values = new ArrayList<String>();
> values.add("a");
> values.add("b");
> MyEntityExample example = new MyEntityExample ();
> example.setId(new Long(1));
> example.setObject(values);
> manager.persist(example);
>
>
>
> On 5/4/09 2:46 PM, "Paulo Cesar Silva Reis" <casmeiron_at_gmail.com> wrote:
>
> > Sure, follow:
> >
> > // Abstract class that is used by 2 child classes. The field that I am
> > talking about is Object object.
> >
> > // Note that it works perfectly when persisted with EntityManager but when I
> > try to insert this object writing the bytes directly in the column (using
> > insert statement) toplink is not able to reconstruct the object later.
> >
> > My entity class is simple like this:
> >
> > @Entity
> > public class MyEntityExample implements Serializable {
> > private Long id;
> >
> > private Serializable object;
> >
> > @Id
> > public Long getId( ) {
> >
> > }
> >
> > public void setId( Long id ) {
> > this.setId(id);
> > }
> >
> > public Serializable getObject( ) { return this.object; }
> > public void setObject(Serializable object) { this.object = object; }
> >
> > So if I do that;
> >
> > List<String> values = new ArrayList<String>();
> > values.add("a");
> > values.add("b");
> > MyEntityExample example = new MyEntityExample ();
> > example.setId(new Long(1));
> > manager.persist(example);
> >
> > Everything work, I can easily get the object using:
> >
> > List<String> values2 =
> > (List<String>) manager.find(MyEntityExample.class, new
> > Long(1)).getObject();
> > values.equals(values2); // true
> >
> > But whether a try this approach:
> > CallableStatement cs = connection.prepareCall("INSERT INTO MyEntityExamle
> > (ID, OBJECT) VALUES(?, ?)");
> > cs.sestLong(1, new Long(1));
> > List<String> values = new ArrayList<String>();
> > values.add("a");
> > values.add("b");
> >
> > ByteArrayOutputStream out = new ByteArrayOutputStream();
> >
> > ObjectOutputStream objOut = new ObjectOutputStream(out);
> >
> > objOut.writeObject( values );
> > InputStream stream = new ByteArrayInputStream(out.toByteArray());
> >
> > cs.setBinaryStream(11, stream, out.toByteArray().length);
> >
> >
> > int res = cs.executeUpdate();
> > cs.close();
> >
> > And later whether I try to load the above object using EntityManager using:
> >
> > List<String> values2 =
> > (List<String>) manager.find(MyEntityExample.class, new
> > Long(1)).getObject();
> >
> > I get de described error.
> >
> > So which way do I need to write the serializable object so TopLink can
> > reconstruct it?
> >
> > Thanks.
> >
> >
> >
> > On 5/4/09 11:58 AM, "glassfish_at_javadesktop.org" <glassfish_at_javadesktop.org>
> > wrote:
> >
> >> Can you post your entity class?
> >> [Message sent by forum member 'e3133d3' (e3133d3)]
> >>
> >> http://forums.java.net/jive/thread.jspa?messageID=344852
> >>
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> >>
> >
> >
>
>
>
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