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Re: transient fields
thanks for the helpful answers ... now it becomes clearer for me ...
greetings
lars
Falko Braeutigam schrieb:
> On Mon, 21 Aug 2000, Lars Steiger wrote:
> > ok, this is really a simple and straight forward way -
> >
> > ... but ...
> > iif I want to set this field through a methode like setTransientField(
> > TransientField tfield ) I get a java.io.NotSerializableException ... I guess
> > because this class (TransientField) was not postprocessed by myself.
> >
> > ... conclusion of a rookie ...
> > iis it right that every class that appears inside the interface of a persistent
> > capable class must be postprocessed, but if I define this class with the keyword
> > 'transient', while using it as field, it will not become persistent ...
>
> You are mixing independent things together.
>
> 1. In order to allow ozone to send parameters of a remote method call thru
> the wire, all classes that are used as remote method parameters have to be
> Serializable. No postprocessing ist needed.
>
> 2. If you declare a field 'transient!, then it is transient no matter if it is
> Serialiable or not. But if the field is _not_ transient, then it _must_ be
> Serializable.
>
> 3. Postprocessing (OPP) is needed for independent database classes only. These
> are classes that provide an OzoneRemote interface and that are directly accessed
> from the client or another database object.
>
> Does this clarify things a bit?
>
> Falko
>
> >
> > greetings and thanks again
> > lars
> >
> > Falko Braeutigam schrieb:
> >
> > > On Mon, 21 Aug 2000, Lars Steiger wrote:
> > > > hi
> > > >
> > > > I try to do my first steps with ozone. after consulting all
> > > > documentations and reading
> > > > the messages of this mailing list, I didn't find anything about how to
> > > > define transient fields in objects. Does anyone know more about this
> > > > theme ?
> > >
> > > ozone relies on Java serialization. So the most simple way to declare a field
> > > transient is to add the 'transient' keyword to the field declaration.
> > >
> > > Falko
> > > --
> > > ______________________________________________________________________
> > > Falko Braeutigam mailto:falko@smb-tec.com
> > > SMB GmbH http://www.smb-tec.com
> --
> ______________________________________________________________________
> Falko Braeutigam mailto:falko@smb-tec.com
> SMB GmbH http://www.smb-tec.com