How to tell JAXB that order of elements does not matter?

Question

Is it possible to tell JAXB to ignore the order of elements? So that the generate XSD will contain all-elements instead of sequence-elements?

Answer 1

Add an XmlType annotation to the class with an empty propOrder, like this:

@XmlType(propOrder={})
public class MyClass{
    String username;
    String street;
    String address;
}

It will then generate an xs:all (which is unordered) instead of a sequence.

<xs:complexType name="MyClass">
  <xs:all>
    <xs:element name="username" type="xs:string" minOccurs="0"/>
    <xs:element name="street" type="xs:string" minOccurs="0"/>
    <xs:element name="address" type="xs:string" minOccurs="0"/>
  </xs:all>
</xs:complexType>