Can Jaxb marshal child elements without the root element?

user_1510122 0
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I'm not sure if the following question is possible with jaxb, but I'll ask anyway.

In a certain project, we're using jaxb with a defined schema to create the next structure of xml file.

<aaa>
     <bbb>
        more inner children here
     </bbb>
     <bbb>
        more inner children here
     </bbb>
</aaa>

We're also using the automatic class generating of jaxb which creates the classes: aaa and bbb, where aaa was generated as the @XmlRootElement.

We now want to use the same schema in a new project, that will be also compatible with the previous project. What I would like to do, is to use the same jaxb generated classes, without performing any changes in the schema in order to marshal only a single bbb object into xml.

JAXBContext jc = JAXBContext.newInstance("generated");
Marshaller marshaller = jc.createMarshaller();
marshaller.marshal(bbb, writer);

So we would get the next result:

 <bbb>
    <inner child1/>
    <inner child2/>
    ...
 </bbb>

I'm currently not able to do so as the marshaller yells that I do not have a @XmlRootElement defined.

We're actually trying to avoid the case of separating the schema into 2 schemas, one of only bbb and the other where aaa imports bbb.

Thanks in advance!

marshalling jaxb xml java
2 Answers

I am maybe late with 5 years :) but have you ever tried something like that :

StringWriter stringWriter = new StringWriter();
JAXB.marshal(bbb, stringWriter);
String bbbString = stringWriter.toString();
user_42057510
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