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Re: Objects inside objects don't persist??!?
On Thu, 01 Jun 2000, Amy wrote:
> I am using LocalDatabase to save an object into ozone.
> One of the members of this object's class is a Vector which I initialize
>
> in the class constructor.
>
> When I close the database, re-open it and retrieve my object
> the contents of the Vector are gone!!!
>
> What is going on?
Hmmm... I don't know. I just tested this. No problems.
My database object looks like:
public class AutoImpl extends OzoneObject implements Auto {
static final long serialVersionUID = 1L;
String name = "Ford";
int age = 0;
Auto link;
Vector v;
public AutoImpl() {
// System.out.println ("Auto ctor...");
v = new Vector();
v.add ("dani");
}
....
}
The main code is:
public static void main (String[] args) throws Exception {
LocalDatabase ldb = new LocalDatabase();
ldb.open ("/tmp/db");
ExternalDatabase db = ldb;
Auto auto = (Auto)db.objectForName ("name");
if (auto == null) {
System.out.println ("creating new auto...");
auto = (Auto)db.createObject (AutoImpl.class.getName(), OzoneInterface.Public, "name");
}
auto.print();
db.close();
}
In the first run an Auto object is created. The second run retrieves this
object from the database and correctly prints its content including the vector.
Please check your code.
Falko
--
______________________________________________________________________
Falko Braeutigam mailto:falko@softwarebuero.de
softwarebuero m&b (SMB) http://www.softwarebuero.de