Open Content

JAXB 2.0 supports the following annotations for defining open content. (Open content allows content not statically defined in XML schema to occur in an XML instance):

• The @XmlAnyElement annotation maps to xs:any, which binds to the .NET type System.Xml.XmlElement[].

• The @XmlAnyAttribute annotation maps to xs:anyAttribute, which binds to the .NET type System.Xml.XmlAttribute[].

Example: Using @XmlAnyElement for open content

//-- Java code fragment
@XmlType(propOrder={"name", "age", "oc"})
public class OcPerson {
    @XmlElement(required=true)
    public String name;
    public int age;

    // Define open content
    @XmlAnyElement
    public List<Object> oc;
}

//-- Schema fragment
<xs:complexType name="ocPerson">
    <xs:sequence>
        <xs:element name="name" type="xs:string"/>
        <xs:element name="age" type="xs:int"/>
        <xs:any minOccurs="0" maxOccurs="unbounded">
    </xs:sequence>
</xs:complexType>

// .NET auto generated code from schema
public class ocPerson
{
    private String name;
    private int age;
    private System.Xml.XmlElement[] anyField;<
    
    public String name { ... }
    public int age { ... }
    
    public System.Xml.XmlElement[] Any {
    {
        get { return this.anyField; }
        set { this.anyField = value; }
    }
}

Example: Using @XmlAnyAttribute for open content

//-- Java code fragment
@XmlType(propOrder={"name", "age"}
public class OcPerson {
    public String name;
    public int age;

    // Define open content
    @XmlAnyAttribute
    public java.util.Map oc;
}

//-- Schema fragment
<xs:complexType name="ocPerson">
    <xs:sequence>
        <xs:element name="name" type="xs:string"/>
        <xs:element name="age" type="xs:int"/>
    </xs:sequence>
    <xs:anyAttribute/>
</xs:complexType>

// .NET auto generated code from schema
public class ocPerson
{
    private String name;
    private double age;
    private System.Xml.XmlAttribute[] anyAttrField;<
    
    public String name { ... }
    public double age { ... }
    
    public System.Xml.XmlElement[] anyAttr {
    {
        get { return this.anyAttrField; }
        set { this.anyAttrField = value; }
    }
}