Hi Jorge,
That exception text is wrong in this case. From looking at the actual
code generation, you'd get this error when the items in an ordered
collection (like yours) are out of order.
From looking at your first email, you appear to have a repeating
sequence rather than just repeating elements. If you try to put this
repeating sequence into a simple <collection> it's not going to work,
because you're telling JiBX to expect a collection where the individual
elements may repeat, but the <e1>s will all occur before any <e2>, etc.
You've got several ways of handling this in JiBX. One would be to just
make the collection unordered (with an ordered="false" attribute). That
would be sufficient to let you marshal and unmarshal valid documents,
but would mean that you could create invalid documents, if you (for
instance) added two Type1 values to the collection right after each other.
You could also handle this with nested collections, which would allow
you to use JiBX to enforce the schema ordering. But using an inner
collection to represent the items in the sequence is both overkill and
confusing from the user standpoint. Why not instead just create a class
to represent an instance of the sequence:
class TypeSequence {
private Type1 type1;
private Type2 type2;
private Type3 type3;
...
}
Then you just use a simple <structure> inside a <collection> in the binding:
<collection field="children" factory="SomeElement.listFactory"
usage="optional">
<structure type="TypeSequence>
<structure field="type1"/>
<structure field="type2"/>
<structure field="type3" usage="optional"/>
</structure>
</collection>
Doing it this way gives you a data structure that matches the schema
rules, so it's easier to work with.
Going a little further, if you really only have a single text value for
each of these items, you could eliminate the Type1...n classes
completely and just use String fields within the TypeSequence.
Hope this gives you some ideas for going forward,
- 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
Quecas wrote:
> Ok, I've managed to jibx comiple my mapping definition. Marshaling is also
> working, but only for 1 iteration of the collection. As soon as I iterate
> more than once, an exception is thrown; "org.jibx.runtime.JiBXException:
> Collection item of type Type1 has no binding defined".
>
> my binding now looks somthing like:
>
> </binding>
> <mapping name="e1" class="Type1">
> <value field="value" style="text" usage="required"/>
> </mapping>
> <mapping name="e2" class="Type2">
> <value field="value" style="text" usage="required"/>
> </mapping>
> <mapping name="e3" class="Type3">
> <value field="value" style="text" usage="optional"/>
> </mapping>
>
> <structure name="someElement" field="someElement" usage="optional"
> type="SomeElement">
> <collection field="children" factory="SomeElement.listFactory"
> usage="optional">
> <structure type="Type1" usage="required"/>
> <structure type="Type2" usage="required"/>
> <structure type="Type3" usage="optional"/>
> </collection>
> </structure>
> </binding>
>
> P.S. One thing is confusing with this error, especially with more than two
> iterations; it seems that the exception is only thrown on the first element
> of the last iteration.
>
> Has anyone out there had the same problem?
>
> Thanks
> Jorge
>
>
>
>
>
> Quecas wrote:
>
>> Hi all,
>>
>> I have just started using jibx since I would like to (possibly) change
>> from
>> jaxb.
>>
>> I am having difficulty defining a mapping to correspond to a customers
>> schema, especially a collection to a sequence that houses repeating
>> elements, e.g.
>> <root>
>> <someElement>
>> <e1>aaa</e1> (required)
>> <e2>bbb</e2> (required)
>> <e3>ccc</e3> (optional)
>> <e1>ddd</e1> (required)
>> <e2>eee</e2> (required)
>> <e1>fff</e1> (required)
>> <e2>ggg</e2> (required)
>> <e3>hhh</e3> (optional)
>> </someElement>
>> </root>
>>
>> I have spent hours trying to get a mapping definitions that works, but to
>> no
>> avail - could someone please point me in the right direction.
>>
>> Thanks
>>
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>
>
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