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

[Niall G. <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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