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Re: [emf-dev] serialization and persistence of EMF objects
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Marco,
Please use the newsgroup rather than
the mailing list to ask questions. SDO provides support for java.io.Serializeable,
so maybe you should look at generating DataObjects rather than just plain
EObjects; there are documents and a tutorial for this subject available
from the Documentation page. For database persistence, searching
the newsgroup contents for previous discussions (using instructions from
the Documentation page) will give you some background and looking at Eike
Stepper's CDO project will give you something concrete to look at; it's
available from the EMF Corner page.
Ed Merks/Toronto/IBM@IBMCA
mailto: merks@xxxxxxxxxx
905-413-3265 (t/l 969)
Ughetti Marco <Marco.Ughetti@xxxxxxxxx>
Sent by: emf-dev-bounces@xxxxxxxxxxx
05/02/2005 09:15 AM
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Subject
| [emf-dev] serialization and
persistence of EMF objects |
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Hi, I’m a Eclipse EMF user in a java application
following MDA architecture
I have basically two problems.
The First is the EMF Object java serialization.
As I need to manage with serializable Java
Beans (i.e. they have to be serializable object to be managed by Tomcat),
I’m trying to make EMF Object
Java serializable but I realized that is
not so simple. The java code generated by EMF consists of classes that
extends EObjectImpl and interfaces that extends EObject
By default they are not java serializable
Who knows the simplest way to make them java
serializable?
Obviously it is not enough ti implements
java.io.Serializable because the java serialization fails anyway.
One idea can be to override the readObject
and writeObject methods creating a Resource Object and using the load and
save method
of the Resource but I’m not sure that it
will work
The second is: I need a Resource implementation
working with Relational Database, maybe based on Hibernate
There is someone working on that or someone
knows the simplest way to make Eobjects persistent using DB instead of
XML files?
Thank you very much
Marco
Gruppo Telecom Italia - Direzione e coordinamento di Telecom
Italia S.p.A.
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