Question

I have a problem with my JAXB. I have a method with @XmlAnyAttribute (on my getter) but it doesn’t seem to work with the setter (using JAXB RI if it matters).

Simplified code:

@XmlRootElement( name = "element" )
@XmlAccessorType( value = XmlAccessType.PUBLIC_MEMBER )
public class Element
{
    private Map<QName, String> convertedAttributes = new HashMap<QName, String>();

    private List<Attribute> attributes = new ArrayList<Attribute>();

    @XmlAnyAttribute
    public Map<QName, String> getConvertedAttributes() throws Exception
    {
        if ( attributes != null )
        {
            return new AttributeMapAdapter().marshal( attributes );
        }

        return new HashMap<QName, String>();
    }

    public void setConvertedAttributes( Map<QName, String> convertedAttributes )
    {
        this.convertedAttributes = convertedAttributes;
    }

    @XmlTransient
    public List<Attribute> getAttributes()
    {
        return attributes;
    }

    public void setAttributes( List<Attribute> attributes )
    {
        this.attributes = attributes;
    }
}

This work great for marshalling, and I get the output I want. But when I try to unmarshall it, no values it sent to the setter.

I tried moving the @XmlAnyAttribute annotation to the field, and it works fine (but then I can’t do the adaption in the getter).

It kinda feels like a bug, but I’m not sure. Any ideas? I’m using Java 1.6 on Mac OS X (10.7.2)

Answer 1

This isn’t a bug in the JAXB RI. The problem is in your getConvertedAttributes() method. The following works a bit better:

public Map<QName, String> getConvertedAttributes() throws Exception
{
    if(!convertedAttributes.isEmpty()) {
        return convertedAttributes;
    }
    if ( attributes != null ) {
        convertedAttributes = new AttributeMapAdapter().marshal( attributes ); 
    } else {
        convertedAttributes = new HashMap<QName, String>();
    }
    return convertedAttributes;
}