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javaserializationxstream

How to ignore a type with XStream?

with XStream, how can I ignore the serialization of a defined Type (for instance, when serializing a GUI, i want to ignore all swing types)?

Or if i want to ignore all javax.* types?

Thanks in advance,
Burkhard

Solution

  • you need to write a custom converter for the types you want to ignore.

    For example, if you want to ignore the JLabels:

    public class MyJLabelConverter implements Converter {

    @Override
    public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext context) {
    }

    @Override
    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
        return null;
    }

    @Override
    public boolean canConvert(Class clazz) {
        return clazz.equals(JLabel.class);
    }
}

    and register it with:

    xstream.registerConverter(new MyJLabelConverter());