Package-level Annotations

The following package-level JAXB annotations are relevant from an interoperability standpoint:

• @XmlSchema – customizes the mapping of package to XML namespace.

• @XmlSchemaType – customizes the mapping of XML schema built-in type. The @XmlSchemaType annotation can also be used at the property/field level, as was seen in the example XMLGregorianCalendar Type.

@XmlSchema Annotation

A package is mapped to an XML namespace. The following attributes of the XML namespace can be customized using the @XmlSchema annotation parameters:

• elementFormDefault using @XmlSchema.elementFormDefault()

• attributeFormDefault using @XmlSchema.attributeFormDefault()

• targetNamespace using @XmlSchema.namespace()

• Associate namespace prefixes with the XML namespaces using the @XmlSchema.ns() annotation

These XML namespace attributes are bound to .NET serialization attributes (for example, XmlSerializer attributes).

Not Recommended Annotations

Any JAXB 2.0 annotation can be used, but the following are not recommended:

• The javax.xml.bind.annotation.XmlElementDecl annotation is used to provide complete XML schema support.

• The @XmlID and @XmlIDREF annotations are used for XML object graph serialization, which is not well supported.