Re: meta data merging

> Hi Engin,
>
> I committed a fix to meta data merging that uses transient for the  
> synthetic inner field that's added.
>
> You can download this as of the next nightly build:http://rifers.org/downloads/rife/snapshots/
>
> Please let me know how this turns out for you.
>
> Take care,
>
> Geert
>
> On 29 Jul 2008, at 23:53, Engin Tekin wrote:
>
>
>
>
>
> > Hi Geert,
>
> > For example I have
>
> >         Foo.class
> >         FooMetaData.class
>
> > I'm sending a list of Foo objects but in the resultant serialization
> > there is FooMetaData objects aswell:
>
> > //
> > OK
> > [7,4,0,0,3,0,0,2,6,3,0,0,3,0,0,2,5,2,0,0,3,0,0,2,4,1,0,0,3,0,0,2,4,1,
> > ["java.util.ArrayList/3821976829"
> > ,"headman.client.model.Foo/
> > 1687815141","headman.client.model.FooMetaData/
> > 3712087070","a","b","c","d"
> > ],0,3]
>
> > if there were no FooMetaData in the package the result of the
> > serialization would be like
>
> > //OK[6,4,2,5,3,2,4,2,2,3,1,2,4,1,["java.util.ArrayList/
> > 3821976829","headman.client.model.Foo/3741164013"
> > ,"a","b","c","d"],0,3]
>
> > The problem occurs at the client side when client tries to deserialize
> > because it doesn't expect a FooMetaData.
>
> > as you said adding transient should solve the problem
>
> >    "Serializable User-defined Classes
> >    ..........
> >       2. all non-final, non-transient instance fields are themselves
> > serializable, and
> >    ..........
>
> >    The transient keyword is honored, so values in transient fields
> > are not exchanged during RPCs. Fields that are declared final are also
> > not     exchanged during RPCs, so they should generally be marked
> > transient as well." (http://code.google.com/webtoolkit/documentation/
> > com
> > .google
> > .gwt.doc.DeveloperGuide.RemoteProcedureCalls.html#SerializableTypes)
>
> > for your refrence:
>
> > public class Foo implements IsSerializable{
> >    public String name;
> >    public int age;
> >    public Foo(){}
> >    public Foo(String name, int age){
> >            this.name = name;
> >            this.age = age;
> >    }
> > }
>
> > public class _FooMetaData extends
> >            MetaData<ConstrainedBean, ConstrainedProperty> implements
> >            IsSerializable {
> > }
>
> > the serialized list object:
> >    List l = new ArrayList();
> >    l.add(new Foo("a",1));
> >    l.add(new Foo("b",2));
> >    l.add(new Foo("c",3));
> >    l.add(new Foo("d",4));
>
> > On Jul 29, 10:27 pm, "Geert Bevin" <gbe...@...> wrote:
> >> Hi,
>
> >> what errors are you getting. I'll look tomorrow in adding transient  
> >> to
> >> the meta data synthetic field that is added to the domain classes. In
> >> theory that should remove the serialization problems.
>
> >> Best regards,
>
> >> Geert
>
> >> On Tue, Jul 29, 2008 at 3:34 PM, Engin Tekin  
> >> <engin.te...@...> wrote:
>
> >>> Hi Geert,
>
> >>> I'm trying to use GWT's RPC (Remote Procedure Call) which serializes
> >>> the objects.
>
> >>> with objects that are not merged with meta data it's working ok.
>
> >>> I've been looking "Hessian webservice and Metadata merging" (http://
> >>> rifers.org/wiki/display/RIFE/Hessian+webservice+and+Meta+data
> >>> +merging)
>
> >>> but I couldn't make a solution like in the "Hessian webservice"  
> >>> case.
>
> >>> What I did is:
>
> >>> class Foo extends Validation{...}
> >>> Foo foo =....;
>
> >>> I tried to serialize "foo.retrieveValidatedBean()" but the same
> >>> problem went on.
>
> >>> actually foo and foo.retrieveValidatedBean() are refrencing to the
> >>> same object.
>
> >>> Any workaround possibly?
>
> >>> Thanks a lot
>
> >>> On Jul 29, 8:39 am, Geert Bevin <gbe...@...> wrote:
> >>>> Hi,
>
> >>>> it's a choice you have to make for each class. The meta data  
> >>>> merging
> >>>> happens at class load time. So, when the FooMetaData class is  
> >>>> present,
> >>>> the merging will happen into Foo. If you don't want this to be the
> >>>> case, simply don't create FooMetaData.
>
> >>>> Hope this helps,
>
> >>>> Geert
>
> >>>> On 29 Jul 2008, at 00:54, Engin Tekin wrote:
>
> >>>>> hi Geert,
>
> >>>>> "RIFE supports an automated method to add meta data to POJO  
> >>>>> classes
> >>>>> without having any additional code nor annotations inside the  
> >>>>> POJOs
> >>>>> themselves." (http://rifers.org/wiki/display/RIFE/Meta+data+merging
> >>>>> )
>
> >>>>> Can we get the pure POJO object that is not merged with the meta  
> >>>>> deta?
>
> >>>>> thanks
>
> >>>> --
> >>>> Geert Bevin
> >>>> Terracotta -http://www.terracotta.org
> >>>> Uwyn "Use what you need" -http://uwyn.com
> >>>> RIFE Java application framework -http://rifers.org
> >>>> Music and words -http://gbevin.com
>
> >> --
> >> Geert Bevin
> >> Terracotta -http://www.terracotta.org
> >> Uwyn "Use what you need" -http://uwyn.com
> >> RIFE Java application framework -http://rifers.org
> >> Music and words -http://gbevin.com
>
> --
> Geert Bevin
> Terracotta -http://www.terracotta.org
> Uwyn "Use what you need" -http://uwyn.com
> RIFE Java application framework -http://rifers.org
> Music and words -http://gbevin.com