I have a Java application compatible with several other information systems
The same object can be displayed in different XML files in accordance with the target system
My question is: is there a Java solution for doing server-side XML mapping / binding on the same object
Something similar to Bean Validation groups that allow you to validate an object with a difference validation profile
In JAXB style, it could be something like this, for example:
@XmlRootElement(name="person", , profile="profile1")
@XmlRootElement(name="individual", profile="profile2")
@XmlRootElement(name="human", profile="profile3")
public class Person {
@XmlElement(name = "lastName", profile="profile1")
@XmlElement(name = "surname", profile="profile2")
@XmlElement(name = "famillyName", profile="profile3")
private String lastName;
}
and then
File file = new File("C:\\file.xml");
JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
Marshaller jaxbMarshaller = jaxbContext.createMarshaller("profile1");
jaxbMarshaller.marshal(person, file);
File file = new File("C:\\file.xml");
JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller("profile1");
Person person = (Person) jaxbUnmarshaller.unmarshal(file);
Is it possible to do this with JAXB, but I won't recognize
Edit
@Martin Serrano's answer gives me some tips for optimizing things with JAXB.
An abstract class to manage all of them:
@XmlTransient
public abstract class APerson {
protected String lastname;
public APerson() {
}
public APerson(APerson p) {
lastname = p.lastname;
}
public abstract String getLastname();
public void setLastname(String lastname) {
this.lastname = lastname;
}
@Override
public String toString() {
return this.getClass().getSimpleName() + "{" + lastname + "}";
}
}
And it specifies the classes that perform the mapping:
Person :
@XmlRootElement
public class Person extends APerson {
public Person() {
}
public Person(APerson p) {
super(p);
}
@Override
public String getLastname() {
return lastname;
}
}
:
@XmlRootElement
public class Human extends APerson {
public Human() {
}
public Human(APerson p) {
super(p);
}
@Override
@XmlElement(name = "famillyName")
public String getLastname() {
return lastname;
}
}
@XmlRootElement
public class Individual extends APerson{
public Individual() {
}
public Individual(APerson p) {
super(p);
}
@Override
@XmlElement(name = "surname")
public String getLastname() {
return lastname;
}
}
:
public class Main {
public static void main(String[] args) throws Exception {
Person person = new Person();
person.setLastname("Doe");
String fileName = "person.xml";
marshal(person, fileName);
person = unmarshal(Person.class, fileName);
System.out.println(person);
fileName = "human.xml";
Human human = new Human(person);
marshal(human, fileName);
human = unmarshal(Human.class, fileName);
System.out.println(human);
person = new Person(human);
System.out.println(person);
fileName = "individual.xml";
Individual individual = new Individual(person);
marshal(individual, fileName);
individual = unmarshal(Individual.class, fileName);
System.out.println(individual);
person = new Person(individual);
System.out.println(person);
}
private static <P extends APerson> void marshal(P person, String fileName) throws JAXBException {
File file = new File(fileName);
JAXBContext context = JAXBContext.newInstance(person.getClass());
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(person, file);
marshaller.marshal(person, System.out);
}
private static <P extends APerson> P unmarshal(Class<P> cl, String fileName) throws JAXBException {
File file = new File(fileName);
JAXBContext context = JAXBContext.newInstance(cl);
Unmarshaller unmarshaller = context.createUnmarshaller();
P person = (P) unmarshaller.unmarshal(file);
return person;
}
}
:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<person>
<lastname>Doe</lastname>
</person>
Person{Doe}
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<human>
<famillyName>Doe</famillyName>
</human>
Human{Doe}
Person{Doe}
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<individual>
<surname>Doe</surname>
</individual>
Individual{Doe}
Person{Doe}
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