@Retention(value=RUNTIME) @Target(value=TYPE) public @interface XmlType
Maps a class or an enum type to a XML Schema type.
Usage
The @XmlType annnotation can be used with the following program elements:
See "Package Specification" in javax.xml.bind.package javadoc for additional common information.
A class maps to a XML Schema type. A class is a data container for values represented by properties and fields. A schema type is a data container for values represented by schema components within a schema type's content model (e.g. model groups, attributes etc).
To be mapped, a class must either have a public
no-arg
zero arg
constructor or a static
no-arg
zero arg
factory method.
In the absence of either,
XmlJavaTypeAdapter
annotation can be used to adapt the class.
The static factory method can be specified in
factoryMethod()
and
factoryClass()
annotation elements.
The static factory method or the no-arg constructor is used during unmarshalling to create an instance of this class. If both are present, the static factory method overrides the no-arg constructor.
A class maps to either a XML Schema complex type or a XML Schema simple type. The XML Schema type is derived based on the mapping of JavaBean properties and fields contained within the class. The schema type to which the class is mapped can either be named or anonymous. A class can be mapped to an anonymous schema type by annotating the class with @XmlType(name="") .
Either a global element, local element or a local attribute can be associated with an
anonymous
anoymous
type as follows:
Mapping class to XML Schema simple type
A class can be mapped to a XML Schema simple type using the
@XmlValue
annotation. For additional details and examples, see
@
XmlValue
@XmlValue
annotation type.
The following table shows the mapping of the class to a XML Schema complex type or simple type. The notational symbols used in the table are:
Target propOrder ClassBody ComplexType SimpleType Class {} [property]+ -> elements complexcontent
xs:allClass non empty [property]+ -> elements complexcontent
xs:sequenceClass X no property -> element complexcontent
empty sequenceClass X 1 [ @XmlValue property] &&
[property]+ ->attributessimplecontent Class X 1 [ @XmlValue property ]&&
no properties -> attributesimpletype
This annotation can be used with the following annotations:
XmlRootElement
,
XmlAccessorOrder
,
XmlAccessorType
,
XmlEnum
. However,
XmlAccessorOrder
and
XmlAccessorType
are ignored when this annotation is used on an enum type.
Example 1: Map a class to a complex type with xs:sequence with a customized ordering of JavaBean properties.
@XmlType(propOrder={"street", "city" , "state", "zip", "name" }) public class USAddress { String getName() {..}; void setName(String) {..}; String getStreet() {..}; void setStreet(String) {..}; String getCity() {..}; void setCity(String) {..}; String getState() {..}; void setState(String) {..}; java.math.BigDecimal getZip() {..}; void setZip(java.math.BigDecimal) {..}; } <!-- XML Schema mapping for USAddress --> <xs:complexType name="USAddress"> <xs:sequence> <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:decimal"/> <xs:element name="name" type="xs:string"/> </xs:all> </xs:complexType>
Example 2: Map a class to a complex type with xs:all
@XmlType(propOrder={}) public class USAddress { ...} <!-- XML Schema mapping for USAddress --> <xs:complexType name="USAddress"> <xs:all> <xs:element name="name" type="xs:string"/> <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:decimal"/> </xs:sequence> </xs:complexType>
Example 3: Map a class to a global element with an anonymous type.
@XmlRootElement @XmlType(name="") public class USAddress { ...} <!-- XML Schema mapping for USAddress --> <xs:element name="USAddress"> <xs:complexType> <xs:sequence> <xs:element name="name" type="xs:string"/> <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:decimal"/> </xs:sequence> </xs:complexType> </xs:element>
Example 4: Map a property to a local element with anonmyous type.
//Example: Code fragment public class Invoice { USAddress addr; ... } @XmlType(name="") public class USAddress { ... } } <!-- XML Schema mapping for USAddress --> <xs:complexType name="Invoice"> <xs:sequence> <xs:element name="addr"> <xs:complexType> <xs:element name="name", type="xs:string"/> <xs:element name="city", type="xs:string"/> <xs:element name="city" type="xs:string"/> <xs:element name="state" type="xs:string"/> <xs:element name="zip" type="xs:decimal"/> </xs:complexType> ... </xs:sequence> </xs:complexType>
Example 5:
Map a property to an attribute with
anonymous
anonmyous
type.
//Example: Code fragment public class Item { public String name; @XmlAttribute public USPrice price; } // map class to anonymous simple type. @XmlType(name="") public class USPrice { @XmlValue public java.math.BigDecimal price; } <!-- Example: XML Schema fragment --> <xs:complexType name="Item"> <xs:sequence> <xs:element name="name" type="xs:string"/> <xs:attribute name="price"> <xs:simpleType> <xs:restriction base="xs:decimal"/> </xs:simpleType> </xs:attribute> </xs:sequence> </xs:complexType>
Example 6:
Define a factoryClass and factoryMethod
@XmlType(name="USAddressType", factoryClass=USAddressFactory.class, factoryMethod="getUSAddress") public class USAddress { private String city; private String name; private String state; private String street; private int zip; public USAddress(String name, String street, String city, String state, int zip) { this.name = name; this.street = street; this.city = city; this.state = state; this.zip = zip; } } public class USAddressFactory { public static USAddress getUSAddress(){ return new USAddress("Mark Baker", "23 Elm St", "Dayton", "OH", 90952); }
Example 7:
Define factoryMethod and use the default factoryClass
@XmlType(name="USAddressType", factoryMethod="getNewInstance") public class USAddress { private String city; private String name; private String state; private String street; private int zip; private USAddress() {} public static USAddress getNewInstance(){ return new USAddress(); } }
Optional Element Summary | |
---|---|
Class |
factoryClass
Class containing a ![]() ![]() ![]() ![]() |
String |
factoryMethod
Name of a ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
String |
name
Name of the XML Schema type which the class is mapped. |
String |
namespace
Name of the target namespace of the XML Schema type. |
String [] |
propOrder
Specifies the order for XML Schema elements when class is mapped to a XML Schema complex type. |
public abstract String name
public abstract String[] propOrder
Refer to the table for how the propOrder affects the mapping of class
The propOrder is a list of names of JavaBean properties in the class. Each name in the list is the name of a Java identifier of the JavaBean property. The order in which JavaBean properties are listed is the order of XML Schema elements to which the JavaBean properties are mapped.
All of the JavaBean properties being mapped to XML Schema elements must be listed.
A JavaBean property or field listed in propOrder must not be transient or annotated with
If a JavaBean property is marked with
@XmlTransient
.
, then it is ignored.
The default ordering of JavaBean properties is determined by @ XmlAccessorOrder .
public abstract String namespace
public abstract Class factoryClass
If
factoryClass
is DEFAULT.class and
factoryMethod
is "", then there is no static factory method.
If
factoryClass
is DEFAULT.class and
factoryMethod
is not "", then
factoryMethod
is the name of a static factory method in this class.
If
factoryClass
is not DEFAULT.class, then
factoryMethod
must not be "" and must be the name of a static factory method specified in
factoryClass
.
public abstract String factoryMethod