Xstream: removing class attribute

Question

How do I remove the class=”Something ” attributes in Xstream .

I use Xstream with annotations

Where are you getting class="..." exactly? Can you post some generated XML? — Mirko N., Jan 05 '10 at 19:10

score 22 · Answer 1 · answered Apr 24 '11 at 16:01

22

I read its code and found if your class is not mapper.defaultImplementationOf(fieldType) , it will add the default class attribute for you, unless the class attribute name is null;

So, set this can remove the class=”Something ” attributes

 xstream.aliasSystemAttribute(null, "class");

answered Apr 24 '11 at 16:01

Bleastrind

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Is there a spring oxm alternative available for this? – Vombat Jun 05 '17 at 15:47

score 14 · Accepted Answer · answered Feb 23 '10 at 23:23

14

Indeed the problem is not as clearly phrased as it should. My guess is that you are using a non-standard collection or using a field of an interface type for which XStream needs to store the actual class.

In the second case you can just use alias:

xstream.alias("field name", Interface.class, ActualClassToUse.class);

See http://markmail.org/message/gds63p3dnhpy3ef2 for more details.

answered Feb 23 '10 at 23:23

Christopher Oezbek

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I had a similar problem and this turned out to be the problem. I was worried that I would have to use alias javacode instead of annotations, but they turned out to complement eachother nicely as I can determine the actual class to use at runtime. – Caoilte May 10 '10 at 09:56
Is there a spring oxm alternative available for this? – Vombat Jun 05 '17 at 15:47

score 2 · Answer 3 · edited Apr 20 '10 at 16:01

Use something of this sort to remove the class attribute completely rather than aliasing it with something else:

private String generateResponse(final XStream xStream)
{
    StringWriter writer = new StringWriter();
    xStream.marshal(this, new PrettyPrintWriter(writer) {
        @Override
        public void addAttribute(final String key, final String value)
        {
            if (!key.equals("class"))
            {
                super.addAttribute(key, value);
            }
        }
    });
    return writer.toString();
}

score 2 · Answer 4 · answered May 06 '15 at 00:41

2

This attribute is shown, at least, when it's not obvious which class shall be used. Usage of interface is an example. In situations like that You can try:

xStream.addDefaultImplementation(YourDefaultImplementation.class, YourInterface.class);

.

answered May 06 '15 at 00:41

kcpr

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score 1 · Answer 5 · edited Aug 24 '16 at 18:11

1

Can you give some example output? I think this usually happens when using Collections. Without seeing the output, my best guess is that you need to register aliases:

xstream.alias("blog", Blog.class);

See http://x-stream.github.io/alias-tutorial.html for more in-depth coverage. Again, paste in some sample output.

edited Aug 24 '16 at 18:11

facundofarias

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answered Jan 06 '10 at 19:41

Dave

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Xstream: removing class attribute

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