@Iaroslav: Note that the poster's problems are not due to generics. He
has developed an interface for a generalized call (which he calls
"generic") to an unmarshaller. Most of this is now (JAXB 2.x) provided
by JAXBElement.
-W
On 07/09/2012, Iaroslav Savytskyi <iaroslav.savytskyi_at_oracle.com> wrote:
> Hi, Scott,
>
> Definitely it's possible to work with generics in JAXB 2.1.
>
> But it's hard to say why do you have the problem without having more
> info. The common approach to work with generics in JAXB is to use
> adapters. Here is good example of it
>
> http://stackoverflow.com/questions/826736/jaxb-marshalling-and-generics
>
> May be it will be helpful for you.
>
> --
> Iaroslav
>
>
> On 05/09/12 19:17, Shannon Scott wrote:
>> Thank you.
>> I removed the generateValueClass="false" from my bindings file - so now
>> JAXB 2.1 does not generate the interfaces.
>> I changed my generic class used to receive all types of xml during
>> unmarshalling from an interface to an abstract class:
>> package xxx.frameworks.interfaces;
>>
>> public class GenericXmlInterfaceRecord {
>>
>> }
>>
>> Now the unmarshaling fails with this error:
>> unexpected element (uri:"", local:"Unit2Report"). Expected elements are
>> (none)
>>
>> I imagine this is because my generic class does not have the XMLElement
>> annotation:
>> @XmlElement(name = " Unit2Report", required = true)
>> (it is meant to be generic - not just for this set of elements)
>>
>> Is it possible to unmarshal to a generic class with JAXB 2.1 (like we
>> did with JAXB 1.0)?
>>
>> Sorry if I missed the point of your suggestion.
>> Thank you for trying to help.
>> Shannon
>>
>>
>> On Wed, Sep 5, 2012 at 11:17 AM, Wolfgang Laun <wolfgang.laun_at_gmail.com
>> <mailto:wolfgang.laun_at_gmail.com>> wrote:
>>
>> JAXB 2.0 doesn't handle interfaces. You'll have to provide classes.
>> -W
>>
>>
>>
>> On 5 September 2012 16:52, Shannon Scott <sscott_at_mapit.net
>> <mailto:sscott_at_mapit.net>> wrote:
>>
>> I am trying to upgrade from JAXB 1.0 to JAXB 2.1 (in Java 1.6).
>>
>> We have a directory where the jaxb generated files are:
>> xxx.interfaces.unit2.data
>>
>> We have a generic class used to receive all types of xml during
>> unmarshalling:
>> package xxx.frameworks.interfaces;
>>
>> public interface GenericXmlInterfaceRecord {
>>
>> }
>> ## JAXB 1.0 ##
>> Our JAXBContext and UnMarshaller are intialized like this:
>> _jaxbContext =
>> JAXBContext.newInstance("xxx.interfaces.unit2.data");
>> _unMarshaller = _jaxbContext.createUnmarshaller();
>> _unMarshaller.setEventHandler(_xmlValidationEventsHandler);
>> _unMarshaller.setValidating(true);
>>
>> Previously we would unmarshal our xml like this:
>>
>> GenericXmlInterfaceRecord record =
>> (GenericXmlInterfaceRecord) _unMarshaller.unmarshal(
>> new StreamSource(new StringReader(xmlString)));
>> We would extend our generic class in the generated JAXB class
>> for the root element (for example):
>> package xxx.interfaces.unit2.data;
>>
>> public interface Unit2ReportType
>> extends
>> javax.xml.bind.Element,
>> xxx.frameworks.interfaces.GenericXmlInterfaceRecord
>> {
>>
>>
>> ## JAXB 2.1 ##
>> We are intializing the JAXBContext and UnMarshaller like this:
>> _jaxbContext =
>> JAXBContext.newInstance("xxx.interfaces.unit2.data");
>> _unMarshaller = _jaxbContext.createUnmarshaller();
>> _unMarshaller.setEventHandler(_xmlValidationEventsHandler);
>> _unMarshaller.setSchema(schema);
>>
>> And we are trying to unmarshal our xml like this:
>> JAXBElement<GenericXmlInterfaceRecord>
>> rootElement = _unMarshaller.unmarshal(new StreamSource(
>> new StringReader(xmlString)),GenericXmlInterfaceRecord.class);
>>
>> GenericXmlInterfaceRecord record = rootElement.getValue();
>>
>> But this throws an error:
>> xxx.frameworks.interfaces.GenericXmlInterfaceRecord is not known
>> to this context
>>
>> I think the error is because the GenericXmlInterfaceRecord is
>> not within the JAXBContext used to create the unmarshaler
>> ("xxx.interfaces.unit2.data").
>>
>> QUESTION:
>> Is there a way with JAXB 2.1 to unmarshal to a class outside the
>> directory/package with the JAXB generated files (like we did
>> with JAXB 1.0)?
>>
>> I also tried adding the GenericXmlInterfaceRecord package name
>> to the JAXBContext initialization, and putting @XmlRootElement
>> into the GenericXmlInterfaceRecord class, but then I got this
>> error:
>> ClassNotFoundException:
>> xxx.frameworks.interfaces.impl.ObjectFactory
>>
>> Any help or advice is greatly appreciated.
>> Sorry if this is not the appropriate venue for the inquery, feel
>> free to direct me elsewhere.
>>
>> Thank you.
>> Shannon
>>
>>
>>
>