Re: [jibx-users] xsi:type support

[Dennis Sosnoski]

There's no support for xsi:type at present, though I'd like to add it in 
the future. The problem is that the JiBX structure is designed around 
using the element name as a key to the appropriate unmarshalling. 
xsi:type breaks this approach. It's not an insurmountable problem in the 
code, but I don't know of any clean way around this with the beta 3 code.

I'll try to at least provide a way you can do this with some handling 
code in beta 4.

 - Dennis
Stephan Kozel wrote:
Hi everybody,
Has anyone worked with xsi:type attributes using jibx?
I mean something like that:
XML document A
<...>
   <data xsi:type="PassengerCarData">
      <!-- car specific data -->
   </data>
</...>
XML document B
<...>
   <data xsi:type="ExtendedPassengerCarData">
      <!-- extended passenger car specific data -->
   </data>
</...>
In the binding.xml for jibx this would look something like that:
<mapping class="net.team.data.AbstractData" abstract="true">
   <value name="type" ns="http://www.w3.org/2001/XMLSchema-instance"; 
style="attribute" get-method="getXsiType" set-method="setXsiType"/>
</mapping>

<mapping name="data" class="net.team.data.PassengerCarData" 
extends="net.team.data.AbstractData">
   <structure map-as="net.team.data.AbstractData">
   <!-- passenger car specific bindings -->
</mapping>

<mapping name="data" class="net.team.data.ExtendedPassengerCarData" 
extends="net.team.data.PassengerCarData">
   <structure map-as="net.team.data.AbstractData">
   <!-- extended passenger car specific bindings -->
</mapping>

The point is, that I want to use the attributes and elements of the 
type PassengerCarData in the ExtendedPassengerCarData (as 'extended' 
indicates). But with a binding.xml like that above, this does not 
work, I get a NullPointerException at the end of the build:
BUILD FAILED: java.lang.NullPointerException

I don't understand how jibx should know, what "data" mapping it should 
use when reaching a <data xsi:type...> tag. I haven't found any way in 
the manual, how one can define a mapping according to the value of an 
attribute. Please proove me wrong !!!

If anyone knows a solution to this problem, please tell me!
cheers
Stephan

-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/
_______________________________________________
jibx-users mailing list
jibx-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/jibx-users