JAXB code generation: how to remove a zero occurrence field?
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Published on 2010-06-17T08:30:04Z
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Hi all,
I use JAXB 2.1 to generate Java classes from several XSD files, and I have a problem related to complex type restriction.
On of the restrictions modifies the occurence configuration from minOccurs="0" maxOccurs="unbounded"
to minOccurs="0" maxOccurs="0"
. Thus this field is not needed anymore in the restricted type. But actually JAXB generates the restricted class with a [0..1] cardinality instead of 0.
By the way the generation is tuned with <xjc:treatRestrictionLikeNewType />
so that a XSD restriction is not mapped to a Java class inheritance.
Here is an example:
Here is the way a field is defined in a complex type A:
<element name="qualifier" type="CR" maxOccurs="unbounded" minOccurs="0"/>
Here is the way the same field is restricted in another complex type B that restricts A:
<element name="qualifier" type="CR" minOccurs="0" maxOccurs="0"/>
In the A generated class I have:
@XmlElement(name = "qualifier")
protected List<CR> qualifiers;
And in the B generated class I have:
protected CR qualifiers;
With my poor understanding of JAXB the absence of the XmlElement
annotation tells JAXB not to marshall/unmarshall this field. Am I wrong?
If I am right is there a way to tell JAXB not to generate the qualifiers
field at all?
This would be in my opinion a much better generation as it respects the constraints.
Any idea, thougths on the topic?
Thanks!!
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