Re: [Simple-support] Serializing collections with both SimpleXML-annotated and not annotated types

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

Hi,

Actually, this does seem to have a bug. The primitive types should really delegate to the org.simpleframework.xml.transform.Transformer to deserialize the primitives. Ill take a look at this issue. For now the only way to resolve this is to have separate maps.

Thanks for the feedback,
Niall


--- On Sun, 9/28/08, Niall Gallagher <gal...@ya...> wrote:

> From: Niall Gallagher <gal...@ya...>
> Subject: Re: [Simple-support] Serializing collections with both SimpleXML-annotated and not annotated types
> To: sim...@li..., "Stanislaw Osinski" <sta...@ca...>
> Date: Sunday, September 28, 2008, 11:42 AM
> Hi,
> 
> Try the following:
> 
> package org.simpleframework.xml.load;
> 
> import java.util.HashMap;
> import java.util.Map;
> 
> import junit.framework.TestCase;
> 
> import org.simpleframework.xml.Attribute;
> import org.simpleframework.xml.ElementMap;
> import org.simpleframework.xml.Root;
> import org.simpleframework.xml.Serializer;
> 
> public class MixTest extends TestCase {
>    
>    @Root
>    private static class MixList {
>       
>       @ElementMap(keyType=String.class,
> valueType=Object.class)
>       private Map<String, Object> map = new
> HashMap<String, Object>();
>    }
>    
>    @Root
>    private class Entry {
>       
>       @Attribute
>       private String name;
>    }
> 
>    public void testMix() throws Exception {
>       MixList list = new MixList();
>       Serializer serializer = new Persister();
>       
>       list.map.put("a", "b");
>       list.map.put("b", 1);
>       list.map.put("c", true);
>       
>       serializer.write(list, System.out);
>       
>       Entry entry = new Entry();
>       entry.name = "entry";
>       
>       list.map.put("d", entry);
>       
>       serializer.write(list, System.out);
>    }
> }
> 
> Shared types in a map. It produces.
> 
> <mixList>
>    <map class="java.util.HashMap">
>       <entry>
>          <string>d</string>
>          <object
> class="org.simpleframework.xml.load.MixTest$Entry"
> name="entry"/>
>       </entry>
>       <entry>
>          <string>a</string>
>          <object class="java.lang.String"/>
>       </entry>
>       <entry>
>          <string>c</string>
>          <object
> class="java.lang.Boolean"/>
>       </entry>
>       <entry>
>          <string>b</string>
>          <object
> class="java.lang.Integer"/>
>       </entry>
>    </map>
> </mixList>
> 
> Hope this helps
> Niall
> 
> --- On Thu, 9/25/08, Stanislaw Osinski
> <sta...@ca...> wrote:
> 
> > From: Stanislaw Osinski
> <sta...@ca...>
> > Subject: [Simple-support] Serializing collections with
> both SimpleXML-annotated and not annotated types
> > To: sim...@li...
> > Date: Thursday, September 25, 2008, 3:51 PM
> > Hi there,
> > 
> > First of all, thanks for sharing SimpleXML with the
> world,
> > it makes working
> > with XMLs a breeze!
> > 
> > One usage scenario in my code is this: I have a map of
> > objects (Map<String,
> > Object>) that can contain instances of a number of
> JDK
> > types (String,
> > Integer, Double, Boolean etc.) but also some
> > SimpleXML-annotated types. The
> > problem obviously is that while the annotated types
> > serialize / deserialize
> > nicely, the JDK ones will not (unless the collection
> has
> > the JDK type in its
> > declaration, which is not possible in my case).
> > 
> > I was wondering what was the recommended way of
> serializing
> > / deserializing
> > such collections. One approach that crossed my mind is
> > replacing the JDK
> > types with some sort of XML-annotated wrappers before
> > serialization and
> > reverting the mapping after deserialization, but maybe
> > there is a better
> > way? (after all, SimpleXML has mechanisms for
> serialization
> > of e.g. a
> > List<Integer>, so why not reuse them if
> possible?)
> > 
> > Thanks,
> > 
> > Staszek
> > 
> > --
> > http://www.carrot2.org
> >
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> 
>       
> 
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