Hi Per-Ivar,
You don't need choice="true" for a collection of items - just say
ordered="false" and flexible="true" on the <collection> element itself,
then list the different alternatives you want to handle as child
<structure>s within the collection. So something along these lines
should work:
<collection type="java.util.ArrayList" field="list" ordered="false"
flexible="true">
<structure name="car" type="Car" usage="optional">
<value name="name" field="name"/>
</structure>
<structure name="boat" type="Boat" usage="optional">
<value name="name" field="name"/>
</structure>
</collection>
That's assuming you use different classes for cars and boats, and that
you really want to require the <name> child element for each.
- Dennis
Dennis M. Sosnoski
SOA and Web Services in Java
Training and Consulting
http://www.sosnoski.com - http://www.sosnoski.co.nz
Seattle, WA +1-425-939-0576 - Wellington, NZ +64-4-298-6117
Per-Ivar Bakke wrote:
> Hi
>
> Does anybody know if there is a plan to support the property
> combination 'choice=true' and 'flexible=true' on the structure
> element? I am running version 1.1.3 now and it does not support
> this. If not, is there a way around the below problem?
>
> I have problems figuring out how jibx could support an unordered list
> with unknown elements! That is, I have the following requirements for
> the XML list:
> 1) Any number (zero or more) Car and Boat elements
> 2) Car and Boat elements may appear in any order
> 3) Any element from any other name space may appear in the list (need
> to use flexible attribute for this)
> 4) The solution should not require the below XML snippet to be adapted
> in any way (the binding could be changed off course)
>
> Consider the XML snippet below:
> <list>
> <car>
> <name>Volvo</name>
> </car>
> <boat>
> <name>Windy</name>
> </boat>
> <car>
> <name>Saab</name>
> </car>
> </list>
>
> Item 1 and 2 above could be parsed using the following binding:
> <mapping class="TestMappings" name="list">
> <collection type="java.util.ArrayList" field="list">
> <structure choice="true" ordered="false" type="TestMapping">
> <structure name="car" field="car" usage="optional">
> <value name="name" field="name" usage="optional"/>
> </structure>
> <structure name="boat" field="boat" usage="optional">
> <value name="name" field="name" usage="optional"/>
> </structure>
> </structure>
> </collection>
> </mapping>
>
> To fulfill requirement 3 above I add the flexible attribute:
> <structure choice="false" ordered="false" type="TestMapping"
> flexible="true">
> I now get the below error:
> Caused by: org.jibx.runtime.JiBXException: Duplicate element
> "car"(line 8, col 8)
>
> To fix this problem I tried adding the allow-repeats attribute:
> <structure choice="false" ordered="false" type="TestMapping"
> allow-repeats="true" flexible="true">
> This time, jibx was only able to find the last Car (Saab) and the Boat
> element in the XML snippet above!
>
> Any solution to this problem would be greatly appreciated! I have the
> Java classes also if needed.
>
>
> Thanks,
> Per-Ivar
>
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