Re: [Simple-support] reference a field of an instance variable

[Niall G. <gal...@ya...>]

Hi,

Glad this helped.

Niall

--- Quirino Zagarese <qu...@la...> wrote:

> This seems definitely better!
> I focused too much on attributes and forgot methods.
> I gave a deeper look to the code and I found this
> framework is
> much more complete than it seems at first sight.
> I would like to use it as serialization engine for
> an open
> framework I'm working on.
> Really a great job!
> 
> 2008/2/11, Niall Gallagher
> <gal...@ya...>:
> >
> > Hi,
> >
> > What you have suggested is static, by this I mean
> that
> > it is a static value on an annotation. So why not
> use
> > getter and setter methods to serialize your
> values.
> > For example instead of annotating the field why
> not
> > annotate a method.
> >
> > public class Class1{
> >
> >    @Element
> >    private Class3 class3;
> >
> >    @Attribute
> >    private long id;
> > }
> >
> > public class Class2{
> >
> >    @Attribute(name="class1", references=Class1.id)
> >    private Class1 class1;
> >
> >    @Attribute
> >    public long getId() {
> >       return class1.id;
> >    }
> >
> >    @Attribute
> >    public void setId(long id) {
> >       class1 = new Class1();
> >       class1.id = id;
> >    }
> > }
> >
> > This will read and write the elements you want
> from
> > Class1.
> >
> > Niall
> >
> > --- Quirino Zagarese <qu...@la...>
> wrote:
> >
> > > Hi and thank you  very much for the fast
> response!
> > > The @Replace solution works perfectly; anyway I
> > > wondered if a construct like
> > > the one I proposed
> > > could be useful for serialization purpose only.
> > > I think so cause you don't need any callbacks
> and
> > > each class "decides" how
> > > to be serialized.
> > > If you think such a functionality to be
> interesting,
> > > I'd like to contribute
> > > it.
> > > Thank you again
> > > Regards
> > >
> > > 2008/2/8, Niall Gallagher
> > > <gal...@ya...>:
> > > >
> > > > Hi,
> > > >
> > > > Yes you can, but not as an attribute of the
> > > containing
> > > > class. All you need to do is use the @Replace
> > > > annotation on a method. For instance if you
> wish
> > > to
> > > > write a single value you should do the
> following.
> > > >
> > > > private Class1 {
> > > >
> > > >    @Element(required=false)
> > > >    private Blah other;
> > > >
> > > >    @Attrobite
> > > >    private int id;
> > > >
> > > >    @Replace
> > > >    private Class1 replace() {
> > > >      if(isSomeCondition()) {
> > > >          Class1 class1 = new Class1();
> > > >          class1.id = id;
> > > >          return class1;
> > > >       }
> > > >       return this;
> > > >    }
> > > > }
> > > >
> > > > public Class2 {
> > > >
> > > >   @Element
> > > >   private Class1 value;
> > > > }
> > > >
> > > > This will cause a callback to Class1 before
> its
> > > > written to XML.
> > > >
> > > > Niall
> > > >
> > > >
> > > > --- Quirino Zagarese
> <qu...@la...>
> > > wrote:
> > > >
> > > > > Hi,
> > > > > I've been watching the Simple Framework and
> I
> > > found
> > > > > it very useful and
> > > > > pretty complete.
> > > > > I looked at tutorials and javadocs and I
> > > wondered if
> > > > > it's possible to
> > > > > serialize only a single field of a complex
> > > instance
> > > > > variable. I'll show it
> > > > > with an example to make it more clear.
> > > > >
> > > > > public class Class1{
> > > > >          @Element
> > > > >          private Class3 class3;
> > > > >
> > > > >          @Attribute
> > > > >          private long id;
> > > > >
> > > > > }
> > > > >
> > > > >
> > > > > public class Class2{
> > > > >           //I want to serialize only the id 
> of
> > > the
> > > > > class1 variable, not the
> > > > > whole state
> > > > >           @Attribute(name="class1"
> > > > > references=Class1.id)
> > > > >           private Class1 class1;
> > > > >
> > > > > }
> > > > >
> > > > > I'm using Simple to serialize AJAX responses
> and
> > > > > this feature could be very
> > > > > useful when you want to show a list of
> > > items(i.e.
> > > > > products in e-commerce
> > > > > apps), but you don't want to load all
> related
> > > data.
> > > > > Sorry for my English.
> > > > > Regards
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Quirino Zagarese
> > > > >
> > > > > LaszloItalia Founder (www.laszloitalia.org)
> > > > > Software Development Manager - Galilaeus
> s.r.l.
> > > > > (www.galilaeus.net)
> > > > > >
> > > >
> > >
> >
>
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> > > >
> > >
> >
>
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> > > >
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