Re: [Simple-support] Invalid reference '16' found. On empty String object (not null)

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

Hi Lorenzo,

One issue with serializing strings is that an empty
string is null. See:

http://simple.sourceforge.net/download/stream/report/cobertura/org.simpleframework.xml.stream.NodeReader.html

Is this a handwritten XML document or is this one that
was serialized and can not be deserialized? If so then
this is a bug I will have to tend to. To fix this you
can make a change in this file:

http://simple.sourceforge.net/download/stream/report/cobertura/org.simpleframework.xml.graph.ReadGraph.html

Such that if it is null then it returns a Reference
oject instead of throwing an exception. It should
return.

return new Reference(null, real);

This should sort out the issue, however if references
are being created to a null value this is a bug. Could
you let me know if this is the case?

Hope this helps,
Niall


--- Lorenzo Dal Col <lor...@gm...> wrote:

> Hello, I'm trying to use Simple XML Serialization
> for saving a big 
> object into files.
> I have circular references, so I use CycleStrategy.
> 
> The problem is that if I save some fields that are
> empty Strings, it 
> uses only one object, all the others are references:
> 
> <tables id="7">
>   <entry>
>      <string id="8">m_units</string>
>      <tableInfo id="9">
>         <fields id="10">
> [...]
>            <entry>
>               <string id="14">descrizione</string>
>               <fieldInfo id="15">
>                  <fieldName reference="14"/>
>                  <columnDefault
> id="16"></columnDefault>
>                  <isNullable>false</isNullable>
>                  <dataType id="17">STRING</dataType>
>                  <parentTable reference="9"/>
>               </fieldInfo>
>            </entry>
> [...]
>            <entry>
>               <string id="151">ragsoc</string>
>               <fieldInfo id="152">
>                  <fieldName reference="151"/>
>                  <columnDefault reference="16"/>
>                  <isNullable>false</isNullable>
>                  <dataType reference="17"/>
>                  <parentTable reference="127"/>
>               </fieldInfo>
>            </entry>
> [...]
> 
> But when I try to load this I get: Invalid reference
> '16' found.
> Am I doing something wrong?
> 
> the Object I'm trying to save is like this:
> 
> @Root
> public class FieldInfo {
>         @Element(required=false)
>         public String fieldName;
>         @Element(required=false)
>         public String columnDefault;
>         @Element(required=false)
>         public boolean isNullable;
>         @Element(required=false)
>         public DATA_TYPE dataType;
>         @Element(required=false)
>         public TableInfo parentTable;
> }
> 
>
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