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Editorial Team
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Asked: 2026-05-28T15:17:26+00:00

In my Android app, I need to talk to a webserver that expects marshalled

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In my Android app, I need to talk to a webserver that expects marshalled objects of complex classes. These custom classes were produces from a WSDL file, so they already come with annotations. The server uses JAXB for marhalling and unmarhalling.

So, on the client side, using JAXB, I would simple to this: 

JAXBContext jc = JAXBContext.newInstance("schema_definition_path");
Marshaller m = jc.createMarshaller();
Unmarshaller u = jc.createUnmarshaller();

…and then use the Marshaller and Unmarshaller instances to work serialize/deserialize the custom objects.

Since, it’s not a great idea to use the heavy-weight JAXB lib in mobile apps, I am looking for an alternative to do what JAXB does for me here.

I checked out Simple XML Serialization, but that doesn’t seem to provide this kind of functionality. I can only give a class to the unmarshaller instead of the schema definition path. Doing this results in an incomplete xml document, containing only the root element.

Can anyone point me in the right direction, please? Is this even possible? Should I use a different lib – which one? I am I just misusing SimpleXML?

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1 Answer

  1. Editorial Team

    Since I couldn’t find any better way (see comments to the original question), I decided to manually convert the Objects using the XML Pull API implementation included in Android.

    Here is a short tutorial on how to use it: http://www.ibm.com/developerworks/opensource/library/x-android/

    I’m not saying it’s a good way, but it’s the only thing I can think of that will work and where I don’t have to touch the original classes.

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