I'm sorry if I haven't been clear. What I mean is, if I have the xsd i've given before, the xsi:nil attribute should be generated, but also another attribute. I've provided an example below:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<foo>
<bar>Value string</bar>
<bar xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true" xmlns:baz="
http://example.org/baz" baz:noValue="noValue" />
</foo>
Somewhere I need to insert the attribute "baz:noValue" with the value "noValue". This is part of the specification I must use, I cannot change that. If the attribute "baz:noValue" isn't provided, the message is incorrect. In the current setup I don't seem to get it to add this extra attribute (next to xsi:nil).
> Date: Tue, 1 Jan 2013 09:48:02 +0100
> Subject: Re: Nillable, minOccurs="0", maxOccurs="unbounded", JAXBElement necessary?
> From: wolfgang.laun_at_gmail.com
> To: users_at_jaxb.java.net
>
> On 01/01/2013, Slappy zd <slapnutcity_at_hotmail.com> wrote:
> > If a null value is specified, how can I add an attribute with a specific
> > value, "noValue"?
>
> You don't have to add the attribute xsi:nil - it has to be handled by the
> marshaller's XML writer.
>
> > It is part of the specification I must follow on which the
> > xsd is based, so I cannot change that. Just nil="true" is not allowed
> > (functionally speaking).
>
> The nil element still needs to be in the XML - otherwise you wouldn't be
> aware of it at all. Hence it must contain xsi:nil="true". That's what the
> XML schema requires. (Note the 3rd element, a null string, which is
> something else.)
>
> Here's an example:
>
> <xs:element name="doc" type="DocType"/>
> <xs:complexType name="DocType">
> <xs:sequence>
> <xs:element name="Title" type="xs:string" minOccurs="0"/>
> <xs:element name="Tipo" type="xs:string"
> minOccurs="0" maxOccurs="unbounded"
> nillable="true"/>
> </xs:sequence>
> </xs:complexType>
>
> ObjectFactory of = new ObjectFactory();
> DocType doc = of.createDocType();
> JAXBElement<DocType> jbe = of.createDoc( doc );
> doc.setTitle( "The Title" );
> doc.getTipo().add( "Tipo 0" );
> doc.getTipo().add( null );
> doc.getTipo().add( "" );
> doc.getTipo().add( "Tipo 3" );
>
> <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
> <doc>
> <Title>The Title</Title>
> <Tipo>Tipo 0</Tipo>
> <Tipo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
> <Tipo></Tipo>
> <Tipo>Tipo 3</Tipo>
> </doc>
>
>
>
>
> >
> >> Date: Mon, 31 Dec 2012 17:02:15 +0100
> >> Subject: Re: Nillable, minOccurs="0", maxOccurs="unbounded", JAXBElement
> >> necessary?
> >> From: wolfgang.laun_at_gmail.com
> >> To: users_at_jaxb.java.net
> >>
> >> Since ArrayList allows null element there's no need for the more
> >> elaborate
> >> JAXBElement. A null List element should result in a
> >> <foo xsi:nil="true"/>
> >>
> >> -W
> >>
> >>
> >> On 31/12/2012, slapnutcity_at_hotmail.com <slapnutcity_at_hotmail.com> wrote:
> >> > I've got an XSD (a part of a bigger XSD which I do not have control
> >> > over), which is provided below.
> >> >
> >> > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
> >> > <xsd:element name="foo">
> >> > <xsd:complexType>
> >> > <xsd:sequence>
> >> > <xsd:element name="bar" type="xsd:string"
> >> > nillable="true" minOccurs="0" maxOccurs="unbounded"/>
> >> > </xsd:sequence>
> >> > </xsd:complexType>
> >> > </xsd:element>
> >> > </xsd:schema>
> >> >
> >> > I has an element "bar" which is of type "string", is nillable, does not
> >> > have to occur, but it can also occur more than once. I've understood to
> >> > make a difference between a nillable element and an element not
> >> > provided, a JAXBElement is used.
> >> >
> >> > When I generate classes by using xjc, I get a class Foo with a
> >> > List<String> bar.Isn't it supposed to be List<JAXBElement<String>> bar?
> >> > If not, how can I make the difference between a value not provided and
> >> > a nil value? When it is a nil value, it should be able to hold an
> >> > attribute defining it has "noValue" (part of the specification I'm
> >> > working with).
> >> >
> >