How can I make @XmlAttribute in a special order by using JAXB?

Question

I have XML file which needs 3 attributes in an element. How can make the order of street, zip and city attribute as I wanted?

<address street="Big Street" zip="2012" city="Austin">
</address>

@XmlType(name="Street)
@XmlRootElement(name = "Street")
public class Street {

@XmlAttribute
private String name;

@XmlAttribute
private String type;

    ... set and get method
}

Casmey

Answer 1

You can use @XmlAccessorOrder(has predefined values) or @XmlType(Only works for properties) to govern the ordering.

Samples

Edit :

For custom ordering JAXB specification doesnt provide anything, but you can do if your JAXB provider provides you some features.

Found this link where it speaks about ordering using EclipseLink JAXB.

Subsistence

yeah, it seems like we can do nothing on it. – Casmey

Yeah unless you restore to provider APIs – Subsistence

Answer 2

Anecdotally, the attributes seem to be in reverse order than they are mentioned in code. In my case, I'm using two variables (name & value) and I had to declare them as:

// The inverse order of name & value seems to make them render in XML in name/value order
@XmlAttribute
protected String value;
@XmlAttribute
protected String name;

When the XML is generated, it results in the following:

<attribute name="nameValue" value="valueValue"/>

Veradi

It seems they are sorted alphabetically in Java 6 and in the order of declaration on Java 7 (in both cases using the built-in JDK JAXB provider). – Outlandish

Java 7 also seems to take propOrder into account. – Outlandish