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I want to create bean in java corresponding to below json
{
"name": "",
"id": "",
"dept": {
"deptId": "",
"deptName": "",
"course": {
"courseId": "",
}
}
}
My idea is to create parent class and keep dept and course as inner private classes and then have getters setters to get or set data and form parent bean. But I am getting error "Change visibility to the public"
How can I access private fields of inner private class to get and set data?
try this way its will work
public class firstClass{
private String name;
private String id;
Department dept;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Department getDept() {
return dept;
}
public void setDept(Department dept) {
this.dept = dept;
}
}
class Department{
private int departId;
private String deptName;
Course course;
public int getDepartId() {
return departId;
}
public void setDepartId(int departId) {
this.departId = departId;
}
public String getDeptName() {
return deptName;
}
public void setDeptName(String deptName) {
this.deptName = deptName;
}
public Course getCourse() {
return course;
}
public void setCourse(Course course) {
this.course = course;
}
}
class Course{
private int courseId;
public int getCourseId() {
return courseId;
}
public void setCourseId(int courseId) {
this.courseId = courseId;
}
}
You can't access private fields. Why don't you create a getter and setter for the inner class private fields?
And, maybe you should consider using gson library.
You at least have to make say nested public interfaces, say Dept and Course, with your private (static) nested private classes DeptImpl and SourceImpl.
public class X {
public interface Dept { ... }
private static class DeptImpl extends Dept { ... }
public Dept getDept() { ... }
public Dept createDept(...) {
DeptImpl dept = new DeptImpl(...); ...
return dept;
}
Maybe you need to provide a factory method createDept.
In some cases the implementing class can be anonymous new Dept() { ... }.
You can use Builder Design pattern with immutable Objects:
public class Class {
private final String name;
private final int id;
private final Department dept;
private Class(ClassBuilder classBuilder){
this.name = classBuilder.getName();
this.id = classBuilder.getId();
this.dept = classBuilder.getDept();
}
public String getName() {
return name;
}
public int getId() {
return id;
}
public Department getDept() {
return dept;
}
private static class Department{
private final int deptId;
private final String deptName;
private final Course course;
private Department(DepartmentBuilder departmentBuilder){
this.deptId = departmentBuilder.getDeptId();
this.deptName = departmentBuilder.getDeptName();
this.course = departmentBuilder.getCourse();
}
public int getDeptId() {
return deptId;
}
public String getDeptName() {
return deptName;
}
public Course getCourse() {
return course;
}
private static class Course{
private final int courseId;
private Course(CourseBuilder courseBuilder){
this.courseId = courseBuilder.getCourseId();
}
public int getCourseId() {
return courseId;
}
}
}
public static class ClassBuilder{
private final String name;
private final int id;
private final Department dept;
public ClassBuilder(String name, int id, Department dept){
this.name = name;
this.id = id;
this.dept = dept;
}
public Department getDept() {
return dept;
}
public String getName() {
return name;
}
public int getId() {
return id;
}
public Class build(){
return new Class(this);
}
}
public static class DepartmentBuilder {
private final int deptId;
private final String deptName;
private final Department.Course course;
public DepartmentBuilder(int deptId, String deptName, Department.Course course ){
this.deptId = deptId;
this.deptName = deptName;
this.course = course;
}
public int getDeptId() {
return deptId;
}
public String getDeptName() {
return deptName;
}
public Department.Course getCourse() {
return course;
}
public Department build(){
return new Department(this);
}
}
public static class CourseBuilder{
private final int courseId ;
public CourseBuilder(int courseId){
this.courseId = courseId;
}
public int getCourseId() {
return courseId;
}
public Department.Course build(){
return new Department.Course(this);
}
}
}
public class Sample {
public static void main(String ... strings){
Class clazz = new Class.ClassBuilder("ClassName", 1, new Class.DepartmentBuilder(1, "departmentName", new Class.CourseBuilder(2).build()).build()).build();
System.out.println(clazz.getDept());
}
}
Related
I am using Spring Boot (v 2.4.0) with Hibernate 5.4.24 and, when trying to get some information from my database, I keep getting this error message:
org.springframework.orm.jpa.JpaSystemException: Error accessing field [private int es.uc3m.orders.model.Shoppingcart.usID] by reflection for persistent property [es.uc3m.orders.model.Shoppingcart#usID] : 1; nested exception is org.hibernate.property.access.spi.PropertyAccessException: Error accessing field [private int es.uc3m.orders.model.Shoppingcart.usID] by reflection for persistent property [es.uc3m.orders.model.Shoppingcart#usID] : 1
It is kind of weird for me, because it only happens when I try to access the table Shoppingcart, since I can get informatin from the rest of the tables.
I also used the exact same entities with another project but, insetad of using Spring Boot, persistence was made with EntityManagers and it worked perfectly fine.
These are my entities:
Shoppingcart
#Entity
#NamedQuery(name="Shoppingcart.findAll", query="SELECT s FROM Shoppingcart s")
public class Shoppingcart implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private int scID;
private int usID;
//bi-directional many-to-many association to Product
#ManyToMany
#JoinTable(
name="sc_has_product"
, joinColumns={
#JoinColumn(name="scID")
}
, inverseJoinColumns={
#JoinColumn(name="productID")
}
)
private List<Product> products;
//bi-directional one-to-one association to User
#OneToOne(mappedBy="shoppingcart")
private User user;
public Shoppingcart() {
}
public int getScID() {
return this.scID;
}
public void setScID(int scID) {
this.scID = scID;
}
public int getusID() {
return this.usID;
}
public void setusID(int usID) {
this.usID = usID;
}
public List<Product> getProducts() {
return this.products;
}
public void setProducts(List<Product> products) {
this.products = products;
}
public User getUser() {
return this.user;
}
public void setUser(User user) {
this.user = user;
}
public boolean isNull() {
return getProducts().isEmpty();
}
User
#Entity
#Table(name="users")
#NamedQuery(name="User.findAll", query="SELECT u FROM User u")
public class User implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private int id;
private String address;
#Column(name="card_n")
private Long cardN;
private String city;
private String country;
private int cvv;
private String email;
private String exp;
private String name;
private String pass;
private String surname1;
private String surname2;
private String typeOfUser;
#Column(name="zip_code")
private int zipCode;
//bi-directional many-to-one association to Order
#OneToMany(mappedBy="user")
private List<Orders> orders;
//bi-directional many-to-one association to Product
#OneToMany(mappedBy="user")
private List<Product> products;
//bi-directional one-to-one association to Shoppingcart
#OneToOne(cascade=CascadeType.REMOVE)
#JoinColumn(name="ID", referencedColumnName="usID", insertable=false, updatable=false)
private Shoppingcart shoppingcart;
public User() {
}
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
public String getAddress() {
return this.address;
}
public void setAddress(String address) {
this.address = address;
}
public Long getCardN() {
return this.cardN;
}
public void setCardN(Long cardN) {
this.cardN = cardN;
}
public String getCity() {
return this.city;
}
public void setCity(String city) {
this.city = city;
}
public String getCountry() {
return this.country;
}
public void setCountry(String country) {
this.country = country;
}
public int getCvv() {
return this.cvv;
}
public void setCvv(int cvv) {
this.cvv = cvv;
}
public String getEmail() {
return this.email;
}
public void setEmail(String email) {
this.email = email;
}
public String getExp() {
return this.exp;
}
public void setExp(String exp) {
this.exp = exp;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getPass() {
return this.pass;
}
public void setPass(String pass) {
this.pass = pass;
}
public String getSurname1() {
return this.surname1;
}
public void setSurname1(String surname1) {
this.surname1 = surname1;
}
public String getSurname2() {
return this.surname2;
}
public void setSurname2(String surname2) {
this.surname2 = surname2;
}
public int getZipCode() {
return this.zipCode;
}
public void setZipCode(int zipCode) {
this.zipCode = zipCode;
}
public List<Orders> getOrders() {
return this.orders;
}
public void setOrders(List<Orders> orders) {
this.orders = orders;
}
public Orders addOrder(Orders order) {
getOrders().add(order);
order.setUser(this);
return order;
}
public Orders removeOrder(Orders order) {
getOrders().remove(order);
order.setUser(null);
return order;
}
public List<Product> getProducts() {
return this.products;
}
public void setProducts(List<Product> products) {
this.products = products;
}
public Product addProduct(Product product) {
getProducts().add(product);
product.setUser(this);
return product;
}
public Product removeProduct(Product product) {
getProducts().remove(product);
product.setUser(null);
return product;
}
public Shoppingcart getShoppingcart() {
return this.shoppingcart;
}
public void setShoppingcart(Shoppingcart shoppingcart) {
this.shoppingcart = shoppingcart;
}
public String getTypeOfUser() {
return typeOfUser;
}
public void setTypeOfUser(String typeOfUser) {
this.typeOfUser = typeOfUser;
}
}
This is the ShoppingcartDAO class:
public interface ShoppingCartDAO extends CrudRepository<Shoppingcart, Integer> {
#Query("SELECT s FROM Shoppingcart s JOIN User u ON u.id = s.usID AND u.id LIKE :id")
Shoppingcart findByUser(#Param("id") int id);
#Query("SELECT s FROM Shoppingcart s")
List<Shoppingcart> findAllShoppingCart();
}
And, finally, this is my ShoppingcartController class:
#RestController
#CrossOrigin
#EnableAutoConfiguration
public class ShoppingCartController {
#Autowired
ShoppingCartDAO scDAO;
#RequestMapping(value = "sc", method = RequestMethod.POST, produces = "application/json")
public ResponseEntity<?> assignShoppingCart(#RequestBody(required = true) Shoppingcart sc) {
try {
scDAO.save(sc);
return new ResponseEntity<Void>(HttpStatus.CREATED);
} catch(Exception e) {
return new ResponseEntity<Void>(HttpStatus.BAD_REQUEST);
}
}
#RequestMapping(value = "sc", method = RequestMethod.GET, produces = "application/json")
public ResponseEntity<?> getEveryShoppingCart() {
try {
List<Shoppingcart> sc = scDAO.findAllShoppingCart();
return new ResponseEntity<List<Shoppingcart>>(sc, (sc != null) ? HttpStatus.OK : HttpStatus.NOT_FOUND);
} catch(Exception e) {
System.out.println(e);
return new ResponseEntity<Void>(HttpStatus.BAD_REQUEST);
}
}
}
I am really going nuts as I can´t figure out what is going on with my code, so thank you in advance if you help me.
I finally fixed it. For those of you who are wondering how, I deleted the relationships between tables that I had, ending with:
Shoppingcart:
#Entity
public class Shoppingcart implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private int scID;
#Column(name = "usID")
private Integer userID;
public Shoppingcart() {
}
public int getScID() {
return this.scID;
}
public void setScID(int scID) {
this.scID = scID;
}
public Integer getUserID() {
return userID;
}
public void setUserID(Integer userID) {
this.userID = userID;
}
Product:
#Entity
public class Product implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private int productID;
private String category;
private String color;
private String description;
private String estadoProducto;
private String fecha;
private int orderID;
private String photo;
private double price;
private int seller;
private String sexo;
private String state = "Disponible";
private String talla;
private String title;
public Product() {
}
public int getProductID() {
return this.productID;
}
public void setProductID(int productID) {
this.productID = productID;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public String getColor() {
return this.color;
}
public void setColor(String color) {
this.color = color;
}
public String getDescription() {
return this.description;
}
public void setDescription(String description) {
this.description = description;
}
public String getEstadoProducto() {
return this.estadoProducto;
}
public void setEstadoProducto(String estadoProducto) {
this.estadoProducto = estadoProducto;
}
public String getFecha() {
return this.fecha;
}
public void setFecha(String fecha) {
this.fecha = fecha;
}
public String getPhoto() {
return this.photo;
}
public void setPhoto(String photo) {
this.photo = photo;
}
public double getPrice() {
return this.price;
}
public void setPrice(double price) {
this.price = price;
}
public String getSexo() {
return this.sexo;
}
public void setSexo(String sexo) {
this.sexo = sexo;
}
public String getState() {
return this.state;
}
public void setState(String state) {
this.state = state;
}
public String getTalla() {
return this.talla;
}
public void setTalla(String talla) {
this.talla = talla;
}
public String getTitle() {
return this.title;
}
public void setTitle(String title) {
this.title = title;
}
public int getOrderID() {
return orderID;
}
public void setOrderID(int orderID) {
this.orderID = orderID;
}
public int getSeller() {
return seller;
}
public void setSeller(int seller) {
this.seller = seller;
}
With this, everything worked fine, but don't ask me why, because I don't know it.
Your Getters/Setters are wrongly implemented.
Like :
Actual :
public int getusID() {
return this.usID;
}
Expected :
public int getUsID() {
return this.usID;
}
Same with setter
There is a Product class. A list of objects of product class is formed and that list is encapsulated within an object of Order class. both the classes are given below.
Product.java
package com.example.gandhjee.pantry_order;
import java.io.Serializable;
public class Product implements Serializable{
private int id;
private String name;
private int amount;
private int final_id;
private int price;
private int price_per_plate;
//private String description;
private static final long serialVersionUID = -5435670920302756945L;
//Constructor
public Product(int final_id,int id, String name, int amount , int price ,int price_per_plate) {
this.id = id;
this.name = name;
this.amount = amount;
this.setName(name);
this.setAmount(amount);
this.setFinal_id(final_id);
this.price_per_plate = price_per_plate;
this.final_id = final_id;
this.price = price;
}
public int getPrice_per_plate(){
return price_per_plate;
}
public int getPrice(){
return price;
}
public void setPrice(int price){
this.price = price;
}
public void setFinal_id(int final_id){
this.final_id=final_id;
}
public int getFinal_id(){
return final_id;
}
public int getId(){
return id;
}
public void setId(int id){
this.id = id;
}
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public int getAmount(){
return amount;
}
public void setAmount(int amount){
this.amount = amount;
}
}
Order.java
package com.example.gandhjee.pantry_order;
import java.io.Serializable;
import java.util.List;
public class Order implements Serializable{
private int order_id;
private List<Product> mProductList;
private String emp_name;
private int area_id;
private int emp_id;
private int conf_room_id;
private int type_id;
//private String description;
private static final long serialVersionUID = -5435670920302756945L;
public Order(List<Product> mProductList, int order_id,int emp_id, String emp_name, int type_id , int area_id ,int conf_room_id ){
this.mProductList = mProductList;
this.order_id = order_id;
this.emp_name = emp_name;
this.emp_id = emp_id;
this.setType_id(type_id);
this.setconf_room_id(conf_room_id);
this.setArea_id(area_id);
}
public void setmProductList(List<Product> mProductList){
this.mProductList = mProductList;
}
public Product getmProductList(){
return (Product) mProductList;
}
public int getConf_room_id(){
return conf_room_id;
}
public void setconf_room_id(int conf_room_id){
this.conf_room_id = conf_room_id;
}
public int getArea_id(){
return area_id;
}
public void setArea_id(int area_id){
this.area_id = area_id;
}
public void setType_id(int type_id){
this.type_id=type_id;
}
public int getType_id(){
return type_id;
}
public int getOrder_id(){
return order_id;
}
public String getEmp_name(){
return emp_name;
}
public void setEmp_name(String emp_name){
this.emp_name = emp_name;
}
public int getEmp_id(){
return emp_id;
}
public void setEmp_id(int emp_id){
this.emp_id = emp_id;
}
}
Now I want to send an Object of Order class from my mobile application to a web service in PHP using Volley library. I searched a lot on the internet but there is no example given for sending an Object within an object from a mobile application to a web service. Any help would be appreciated . Thank you in advance!
Create a JSONObject and send that to the server.
You can either do it manually usally net.json or (that's what I suggest you) use Gson.
Here you can find a tutorial to implement it for your use:
https://guides.codepath.com/android/Leveraging-the-Gson-Library
I am developing and spring application and for object mapping I am using ModelMapper library.
I am able to map basic class mapping but when I am trying to map 2 collection elements, source is set of enumeration with additional property like name and description and destination is pojo having id, name and description.
I have tried typemap and converters in mapping profile but I am getting exception of mapper.
And the source class is from other application(whose dependency have been added in pom.xml). I also don't want source type as an argument in setter of destination.
Ex.
SOURCE:
public class VType{
private int id;
private String name;
private String description;
}
public class VDTO{
private Set<VType> vTypes;
public Set<VType> getVTypes(){
return this.vTypes;
}
public void setVType() { //here I don't want to pass source type as an argument
//code stuff that I don't know what to do here
}
}
SOURCE ENUM:
public enum SourceVType{
V1(1, "Name1", "Desc1");
V2(2, "Name2", "Desc2");
private Integer id;
private String name;
private String description;
SourceVType(Integer id, String name, String description) {
this.id = id;
this.name = name;
this.description = description;
}
//getter-setter
}
Have you tried converter feature of modelmapper. You can use typemap converter to achieve this requirement.
#RunWith(JUnit4.class)
public class TempTest {
#Test
public void TestThis(){
final ModelMapper mapper = new ModelMapper();
mapper.addMappings(new PropertyMap<SrcClass, DestClass>() {
#Override
protected void configure() {
this.map().setId(this.source.getId());
this.map().setName(this.source.getName());
mapper.createTypeMap(TypeEnum.class, TypeClass.class).setConverter(
new Converter<TypeEnum, TypeClass>() {
#Override
public TypeClass convert(MappingContext<TypeEnum, TypeClass> mappingContext) {
if (mappingContext.getSource() == null) {
return null;
}
TypeEnum typeEnum = mappingContext.getSource();
TypeClass typeClass = new TypeClass();
typeClass.setId(typeEnum.getId());
typeClass.setName(typeEnum.getName());
return typeClass;
}
});
}
});
SrcClass srcObj = new SrcClass();
srcObj.setId(1);
srcObj.setName("name");
srcObj.setTypes(new HashSet<>(Arrays.asList(TypeEnum.TYPE1, TypeEnum.TYPE2)));
DestClass dstObj = mapper.map(srcObj, DestClass.class);
Assert.assertEquals(srcObj.getId(), dstObj.getId());
Assert.assertEquals(srcObj.getName(), dstObj.getName());
Assert.assertEquals(srcObj.getTypes().size(), dstObj.getTypes().size());
for(TypeClass c : dstObj.getTypes()) {
TypeEnum e = TypeEnum.getById(c.getId());
Assert.assertNotNull(e);
Assert.assertTrue(srcObj.getTypes().contains(e));
}
}
public static <Source, Result> Set<Result> convertAll(Set<Source> source, Function<Source, Result> projection)
{
Set<Result> results = new HashSet<>();
if(source == null) return results;
for (Source element : source)
{
results.add(projection.apply(element));
}
return results;
}
public static class SrcClass{
private Integer id;
private String name;
private Set<TypeEnum> types;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<TypeEnum> getTypes() {
return types;
}
public void setTypes(Set<TypeEnum> types) {
this.types = types;
}
}
public static class DestClass{
private Integer id;
private String name;
private Set<TypeClass> types;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<TypeClass> getTypes() {
return types;
}
public void setTypes(Set<TypeClass> types) {
this.types = types;
}
}
public static enum TypeEnum{
TYPE1(1, "Type 1")
, TYPE2(2, "Type 2")
, TYPE3(3, "Type 3")
, TYPE4(4, "Type 4");
private Integer id;
private String name;
TypeEnum(Integer id, String name) {
this.id = id;
this.name = name;
}
private static final Map<Integer, TypeEnum> byId = new HashMap<>();
private static final Map<String, TypeEnum> byName = new HashMap<>();
static {
for (TypeEnum e : TypeEnum.values()) {
if (byId.put(e.getId(), e) != null) {
throw new IllegalArgumentException("duplicate id: " + e.getId());
}
if (byName.put(e.getName(), e) != null) {
throw new IllegalArgumentException("duplicate name: " + e.getName());
}
}
}
public Integer getId() {
return this.id;
}
public String getName() { return this.name; }
public static TypeEnum getById(Integer id) {
return byId.get(id);
}
public static TypeEnum getByName(String name) {
return byName.get(name);
}
}
public static class TypeClass{
private Integer id;
private String name;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
}
I need to update my Country class so that it can store a list of languages, I also need a field for the list, a getter, and a method that allows me to add a language to the collection. I very green when it comes to programing. This is what I have so far.
public class Country {
private int id;
private String name;
private long population;
private double medianAge;
private List<String> languages;
List<String> list = new ArrayList<>();
/**
* Create a Country object with the given properties
*/
public Country(int id, String name, long population, double medianAge) {
this.id = id;
this.name = name;
this.population = population;
this.medianAge = medianAge;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public long getPopulation() {
return population;
}
public double getMedianAge() {
return medianAge;
}
}
You can remove the member list - cannot see a reason for you to have it.
You constructor can be:
public Country(int id, String name, long population, double medianAge) {
this.id = id;
this.name = name;
this.population = population;
this.medianAge = medianAge;
this.languages = new ArrayList<>();
}
Then you can have a method to add a language to the list:
public void addLanguage (String language) {
languages.add(language);
}
Finally a method to return the list of languages as given below:
public List<String> getLanguages() {
return languages;
}
More information on how ArrayList works
You need a getter method to access languages like below
getLanguages(){
return this.languages;
}
And a method which ads one language to existing list.
addLanguageToList(String language){
this.getLanguages().add(language);
}
Do you mean you want to add an initializer for languages? You can use the list.add() method.
public class Country{
private int id;
private String name;
private long population;
private double medianAge;
private ArrayList<String> languages = new ArrayList<String>();
public Country(int id, String name, long population, double medianAge String language) {
this.id = id;
this.name = name;
this.population = population;
this.medianAge = medianAge;
this.languages.add(laguage);
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public long getPopulation() {
return population;
}
public double getMedianAge() {
return medianAge;
}
}
Its very simple, Create a getter and two add method, one for adding one language and another add method for adding list of language to existing language list.
import java.util.ArrayList;
import java.util.List;
public class Country {
private int id;
private String name;
private long population;
private double medianAge;
private List<String> languages;
List<String> list = new ArrayList<>();
/**
* Create a Country object with the given properties
*/
public Country(int id, String name, long population, double medianAge) {
this.id = id;
this.name = name;
this.population = population;
this.medianAge = medianAge;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public long getPopulation() {
return population;
}
public double getMedianAge() {
return medianAge;
}
public List<String> getLanguages() {
return languages;
}
public void addLanguage(String language) {
this.languages.add(language);
}
public void addLanguages(List<String> languages) {
this.languages.addAll(languages);
}
}
I'm using XmlAdapter for immutable objects as proposed in this blog post: http://blog.bdoughan.com/2010/12/jaxb-and-immutable-objects.html. This works fine, but not with references to other immutable objects in my adapters. Is there any way to handle this with JAXB?
Below there is an example which does not work if the person's xml tag comes after the company's xml tag which references the person.
Immutable objects:
#XmlJavaTypeAdapter(PersonAdapter.class)
public class Person {
private final String id;
private final String name;
public Person(String id, String name) {
this.id = id;
this.name = name;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
}
#XmlJavaTypeAdapter(CompanyAdapter.class)
public class Company {
private final String name;
private final Person principal;
public Company(String name, Person principal) {
this.name = name;
this.principal = principal;
}
public String getName() {
return name;
}
public Person getPrincipal() {
return principal;
}
}
PersonAdapter:
public class PersonAdapter extends XmlAdapter<AdaptedPerson, Person> {
public static class AdaptedPerson {
#XmlID
#XmlAttribute
String id;
#XmlAttribute
String name;
}
#Override
public AdaptedPerson marshal(Person v) throws Exception {
AdaptedPerson a = new AdaptedPerson();
a.id = v.getId();
a.name = v.getName();
return a;
}
#Override
public Person unmarshal(AdaptedPerson v) throws Exception {
return new Person(v.id, v.name);
}
}
CompanyAdapter:
public class CompanyAdapter extends XmlAdapter<AdaptedCompany, Company> {
public static class AdaptedCompany {
#XmlAttribute
String name;
#XmlIDREF
#XmlAttribute
Person principal;
}
#Override
public AdaptedCompany marshal(Company v) throws Exception {
AdaptedCompany a = new AdaptedCompany();
a.name = v.getName();
a.principal = v.getPrincipal();
return a;
}
#Override
public Company unmarshal(AdaptedCompany v) throws Exception {
return new Company(v.name, v.principal);
}
}