Java Reference
In-Depth Information
// ...
}
The
Customer
class contains the same JAXB annotations as the previous class, except
for the
@XmlAttribute(required=true)
annotation, which maps a property to an
attribute of the XML element representing the class.
The
Customer
class contains a property whose type is another entity, the
Address
class. This mechanism allows you to define in Java code the hierarchical relationships
between entities without having to write an
.xsd
file yourself.
JAXB generates the following XML schema definition for the two classes above:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/XMLS-
chema">
<xs:element name="address" type="address"/>
<xs:element name="customer" type="customer"/>
<xs:complexType name="address">
<xs:sequence>
<xs:element name="number" type="xs:int"/>
<xs:element name="street" type="xs:string"/>
<xs:element name="city" type="xs:string"/>
<xs:element name="state" type="xs:string"/>
<xs:element name="zip" type="xs:string"/>
<xs:element name="country" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="customer">
<xs:sequence>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
<xs:element ref="address"/>
<xs:element name="email" type="xs:string"/>
<xs:element name="phone" type="xs:string"/>
</xs:sequence>
<xs:attribute name="id" type="xs:int" use="required"/>
</xs:complexType>
</xs:schema>
