Ah, I think I see now.  Allows the structure to be omitted if amount is empty.

Linus Kamb wrote:
> just curious...
> 
> Is the field="amount" in the TOTAL_AMOUNT structure definition necessary?  It 
> seems redundant to me.
> 
> Linus
> 
> 
> Dennis Sosnoski wrote:
>> Hi Steve,
>>
>> Try:
>>
>>   <structure name="Header">
>>     <structure name="TOTAL_AMOUNT" field="amount" usage="optional">
>>       <value style="attribute" name="currency" field="currency"/>
>>       <value style="text" field="amount"/>
>>     </structure>
>>   </structure>
>>
>>   - 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
>>
>>
>>
>> squirk wrote:
>>> I'm trying to figure out how to map something like this:
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <Order>
>>>    <Header>
>>>       <TOTAL_AMOUNT currency="USD">3.14</TOTAL_AMOUNT>
>>>     </Header>
>>> </Order>
>>>
>>> That is, the TOTAL_AMOUNT with the currency and the content.
>>>
>>> I've tried different combinations of structure bindings but haven't had 
>>> success - for example:
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <binding>
>>>    <!-- order header -->
>>>    <mapping name="Order" class="Order">
>>>      <structure name="Header">
>>> <!--      <value name="TOTAL_AMOUNT" field="amount" usage="optional"/> -->
>>>        <structure name="TOTAL_AMOUNT" usage="optional">
>>> <!--    <value name="" field="amount" usage="optional"/> -->
>>>          <value name="currency" field="currency" usage="optional" 
>>> style="attribute"/>
>>>        </structure>
>>>      </structure>
>>>    </mapping>
>>> </binding>
>>>
>>>
>>> Is it possible to map an element with an attribute and content or do I 
>>> need to include a child element with the amount?
>>>
>>> Thanks,
>>> Steve
>>>
>>>
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