I am trying to use #CreationTimestamp for an instance variable of Instant type.
I am using hibernate.version 5.2.10 and imported import org.hibernate.annotations.*;
but still showing No Default Proposals.
Here is my code
import java.time.Instant;
import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import org.hibernate.annotations.*;
#MappedSuperclass
public class AbstractEntity {
#Id
#Column(nullable=false,updatable=false)
#GeneratedValue(strategy=GenerationType.IDENTITY)
protected Long id;
#CreationTimestamp
protected Instant created;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Instant getCreated() {
return created;
}
You can try to add #EntityListeners(AuditingEntityListener.class) annotation on the class.
Not sure how it worked now
here is what I did
Used jackson-datatype-jsr310
and used #EntityScan in my main class
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>2.8.7</version>
</dependency>
Related
the API gives me an empty answer. If I debug the variable it appears full but at the time of the return it arrives empty, the table contains data and I load it by hand and if I do "SELECT * FROM clients" it brings me these data, what I do not understand is that when he returns it appears empty
CLASS
package com.gestion.backend.entidades;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import lombok.Data;
#Entity
#Table(name="clientes")
#Data
public class Cliente {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column
private Long id;
#Column
private String nombre;
#Column
private String apellido;
#Column
private String email;
#Column
private String localidad;
#Column
private String provincia;
#Column(name="tipo_documento")
private String tipoDocumento;
#Column
private String documento;
#Column
private String nacionalidad;
#Column(name="codigo_postal")
private String codigoPostal;
#Column
private String direccion;
#Column(name="telefono_fijo")
private String telefonoFijo;
#Column
private String celular;
#Column(name="telefono_alternativo")
private String telefonoAlternativo;
#Column(name="forma_de_pago")
private String formaDePago;
#Column
private String condiciones;
}
CONTROLLER
package com.gestion.backend.controllers;
import java.util.List;
import com.gestion.backend.entidades.Cliente;
import com.gestion.backend.services.ClientesService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class ClientesController {
#Autowired
ClientesService clientesService;
// Traigo todos los usuarios
#GetMapping("/clientes")
public List<Cliente> getClientes(){
List<Cliente> clientes = clientesService.getClientes();
//return clientesService.getClientes();
return clientes;
}
// Traigo un usuario especifico
#GetMapping("/clientes/{id}")
public Cliente getClientes(#PathVariable Long id){
return clientesService.getClientesById(id);
}
}
SERVICE
package com.gestion.backend.services;
import java.util.List;
import com.gestion.backend.entidades.Cliente;;
public interface ClientesService {
// Metodos para la clase Clientes
public List<Cliente> getClientes();
public Cliente getClientesById(Long id);
}
SERVICE IMPL
package com.gestion.backend.services.implementation;
import com.gestion.backend.dao.ClientesRepository;
import com.gestion.backend.entidades.Cliente;
import com.gestion.backend.services.ClientesService;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
#Service
public class ClientesServiceImpl implements ClientesService {
#Autowired
private ClientesRepository clientesRepository;
public List<Cliente> getClientes(){
return clientesRepository.findAll();
}
public Cliente getClientesById(Long id){
return clientesRepository.findById(id);
}
}
REPOSITORY
package com.gestion.backend.dao;
import java.util.List;
import java.io.Serializable;
import org.springframework.stereotype.Repository;
import com.gestion.backend.entidades.Cliente;
import org.springframework.data.jpa.repository.JpaRepository;
#Repository("clientesRepository")
public interface ClientesRepository extends JpaRepository<Cliente, Serializable>{
List<Cliente> findAll();
Cliente findById(Long id);
//void softDelete(Integer id);
}
SELECT FROM HIBERNATE
Hibernate: select cliente0_.id as id1_0_, cliente0_.apellido as apellido2_0_, cliente0_.celular as celular3_0_, cliente0_.codigo_postal as codigo_p4_0_, cliente0_.condiciones as condicio5_0_, cliente0_.direccion as direccio6_0_, cliente0_.documento as document7_0_, cliente0_.email as email8_0_, cliente0_.forma_de_pago as forma_de9_0_, cliente0_.localidad as localid10_0_, cliente0_.nacionalidad as naciona11_0_, cliente0_.nombre as nombre12_0_, cliente0_.provincia as provinc13_0_, cliente0_.telefono_alternativo as telefon14_0_, cliente0_.telefono_fijo as telefon15_0_, cliente0_.tipo_documento as tipo_do16_0_ from clientes cliente0
Does anyone know why it returns empty? [{}]
Thanks!!!
I have a model class which is used in post(create) and put(update) rest API
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.NonNull;
import lombok.Setter;
#Getter
#Setter
#NoArgsConstructor
#Entity(name= "employee")
public class employeeDetail {
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private Long employeeId;
#NonNull
private String employeeName;
}
So since employee id to be nullable on add, while it has to be passed when update operation. What is the best to implement?
Note: In this case employee id is a primary key, the same situation is possible for non-primary key fields as well. I use Spring boot, Spring data JPA and hibernate. Database is mariadb.
Something like this:
import com.fasterxml.jackson.annotation.JsonInclude;
import lombok.Data;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.transaction.Transactional;
import javax.validation.Valid;
import javax.validation.constraints.NotNull;
import java.util.Optional;
#Getter
#Setter
#NoArgsConstructor
#Entity(name = "employee")
class EmployeeDetail {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long employeeId; //Long is better!
#NotNull
private String employeeName;
// Needed just for conversion -> use some mapper, and remove this constructor
public EmployeeDetail(EmployeeDetailDTO employeeDetailDTO) {
this.employeeId = employeeDetailDTO.getEmployeeId();
this.employeeName = employeeDetailDTO.getEmployeeName();
}
}
interface EmployeeDetailRepo extends JpaRepository<EmployeeDetail, Long> {
}
#Data
#JsonInclude(JsonInclude.Include.NON_NULL)
class EmployeeDetailDTO {
private Long employeeId;
#NotNull
private String employeeName;
// Other fields
// Needed just for conversion -> use some mapper, and remove this constructor
public EmployeeDetailDTO(EmployeeDetail employeeDetail) {
this.employeeId = employeeDetail.getEmployeeId();
this.employeeName = employeeDetail.getEmployeeName();
}
}
#Service
class EmpDetailService {
private EmployeeDetailRepo employeeDetailRepo;
#Autowired
public EmpDetailService(EmployeeDetailRepo employeeDetailRepo) {
this.employeeDetailRepo = employeeDetailRepo;
}
public EmployeeDetailDTO add(EmployeeDetailDTO employeeDetailDTO) {
// map EmployeeDetailDTO to EmployeeDetail
EmployeeDetail employeeDetail = new EmployeeDetail(employeeDetailDTO);
EmployeeDetail employeeDetail1FromDB = employeeDetailRepo.save(employeeDetail);
// map back to dto
return new EmployeeDetailDTO(employeeDetail1FromDB);
}
#Transactional
public EmployeeDetailDTO edit(Long id, EmployeeDetailDTO employeeDetailDTO) {
// map EmployeeDetailDTO to EmployeeDetail
Optional<EmployeeDetail> byId = employeeDetailRepo.findById(id);
EmployeeDetail employeeDetailFromDB = byId.orElseThrow(() -> new RuntimeException("No such user with id: " + id));
employeeDetailFromDB.setEmployeeName(employeeDetailDTO.getEmployeeName());
return new EmployeeDetailDTO(employeeDetailFromDB);
}
}
#RequestMapping
class Controller {
private EmpDetailService empDetailService;
#Autowired
Controller(EmpDetailService empDetailService) {
this.empDetailService = empDetailService;
}
#PostMapping("/add")
public ResponseEntity<EmployeeDetailDTO> add(#Valid #RequestBody EmployeeDetailDTO employeeDetailDTO) {
EmployeeDetailDTO added = empDetailService.add(employeeDetailDTO);
return new ResponseEntity<>(added, HttpStatus.OK);
}
#PostMapping("/edit/{id}")
public ResponseEntity<EmployeeDetailDTO> edit(#PathVariable Long id,
#Valid #RequestBody EmployeeDetailDTO employeeDetailDTO) {
EmployeeDetailDTO edited= empDetailService.edit(id, employeeDetailDTO);
return new ResponseEntity<>(edited, HttpStatus.OK);
}
}
Since you expect Hibernate to generate yuor id on insert it should be nullable, so its type.
Just change employeeId to Integer.
From a design point of view, consider to create 2 different business domain classes, one for insert with no id and one for update/select with non nullable id.
public class EmployeeRegistration {
#NonNull
private String name;
}
public class EmployeeDetail {
#NonNull
private Integer employeeId;
#NonNull
private String name;
}
Then provade methods to transform them to database entities.
I've an entity class User_Details
package vl.cybersecurityapplication.model;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "User_Details")
public class User_Details implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "UserId")
private int userId;
#Column(name = "FirstName")
private String firstName;
#Column(name = "LastName")
private String lastName;
#Column(name = "Password")
private String password;
#Column(name = "E_Mail")
private String eMail;
#Column(name = "Mobile_Num")
private int mobileNumber;
//getters and setters
}
Here is my repo interface
package vl.cybersecurityapplication.repository;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import vl.cybersecurityapplication.model.User_Details;
public interface IUserRepository extends JpaRepository<User_Details, Long> {
public Integer findMobileNumberByName(String userName);
}
This is my repo class
package vl.cybersecurityapplication.repository;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.transaction.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Repository;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import vl.cybersecurityapplication.model.User_Roles;
#Transactional
#Repository
public class UserRepository{
#Autowired
IUserRepository userRepository;
public Integer findMobileNumberByName(#PathVariable String lastName) {
int mobileNumber = userRepository.findMobileNumberByName("shaik");
System.out.println("Mobile Number : "+mobileNumber);
return mobileNumber;
}
}
I'm new to Spring Boot and JPA.
Here I need to query mobile number in User_Details table by using lastname.
i.e., Select Mobile_Num from User_Details where LastName= "xyz";
Can Some one help me how to wo write this query in my repo class.
You can write like this. But you cannot fetch only MobileNumber. You will get a complete object.
List<User> findByLastName(String lastname).
If you want to get only some fields then you should check out Projections
No need to use a native query. JPA supports object based query.
You can use List findByLastName(String lastname) which will generate that query in the backend and return the result.
Hey i want to create a repository extending JpaRepository and fetch result without writing actual query,
In my example i have 2 tables Book and Author mapped by many to many relationship, suppose i want to fetch list of books by a particular author_id, since in my book entity, i don't have any field named author_id, so how will i use JPARepository to fetch results without writing actual query.
I was doing something like this: I created a bookDTO which contain object of Book and Author, and i created bookDTORepository extending JpaRepository and was calling List<Book> findByAuthor_Id(Integer id); , but its throwing error as: Not an managed type: class golive.data.bookdto My book class is
package golive.data;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.persistence.Transient;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.sun.istack.internal.NotNull;
#Entity
#Table(name="book")
public class Book implements java.io.Serializable{
#Id
#GeneratedValue
private Integer id;
#NotNull
#Column(name="name")
private String name;
#ManyToMany(cascade = CascadeType.ALL,fetch = FetchType.LAZY)
#JoinTable(name = "writes", joinColumns = { #JoinColumn(name = "book_id") }, inverseJoinColumns = { #JoinColumn(name = "author_id") })
private Set<Author> authors = new HashSet<Author>();
public Set<Author> getAuthors() {
return authors;
}
public Integer getId() {
return id;
}
public String getName() {
return name;
}
public void setAuthors(Set<Author> authors) {
this.authors = authors;
}
public void setId(Integer id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
}
My author class is
package golive.data;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.sun.istack.internal.NotNull;
#Entity
#Table(name="author")
public class Author implements java.io.Serializable{
#Id
#GeneratedValue
#Column(name="id")
private Integer Id;
#NotNull
#Column(name="name")
private String name;
public Integer getId() {
return Id;
}
public String getName() {
return name;
}
public void setId(Integer id) {
Id = id;
}
public void setName(String name) {
this.name = name;
}
}
My bookdto class is
package golive.data;
public class bookdto {
private Book book;
private Author author;
public Book getBook() {
return book;
}
public void setBook(Book book) {
this.book = book;
}
public Author getAuthor() {
return author;
}
public void setAuthor(Author author) {
this.author = author;
}
}
and my bookDTORepository is :
package golive.data;
import java.util.List;
import org.springframework.data.jpa.repository.JpaRepository;
public interface bookDTORepository extends JpaRepository<bookdto, Book> {
List<Book> findByAuthor_Id(Integer id);
}
My book controller method, i added:
#RequestMapping(value = "/listbyauthor", method = RequestMethod.POST, produces = "application/json")
public ResponseEntity<List<Book>> getBookByAuthorId(#RequestBody Author author,HttpServletResponse response) {
try {
Author temp = new Author();
temp.setId(author.getId());
temp.setName(author.getName());
return new ResponseEntity<>(bookRepository.findByAuthor(temp), HttpStatus.OK);
} catch (Exception e) {
e.printStackTrace();
}
return new ResponseEntity<>(HttpStatus.NO_CONTENT);
}
You want to find all books for a specific author so, given an Author, retrieve all Books whose set of Authors contains the specified Author.
The relevant JPQL operator is:
http://www.objectdb.com/java/jpa/query/jpql/collection#NOT_MEMBER_OF_
[NOT] MEMBER [OF] The [NOT] MEMBER OF operator checks if a specified
element is contained in a specified persistent collection field.
For example:
'English' MEMBER OF c.languages is TRUE if languages contains
'English' and FALSE if not. 'English' NOT MEMBER OF c.languages is
TRUE if languages does not contain 'English'.
As you may (or may not) be aware, you are using Spring Data which can derive some queries for you depending on method name. The docs do not however mention support for the [NOT] MEMBER [OF] operator:
http://docs.spring.io/spring-data/jpa/docs/current/reference/html/#jpa.query-methods.query-creation
You will therefore need to add a custom query method to your repository which will look something like:
public interface BookRepository extends JpaRepository<Book, Integer> {
#Query("select b from Book b where ?1 MEMBER OF b.authors")
List<Book> findByAuthor(Author author);
}
and where the Author passed as a parameter is a persistent instance retrieved from the Database (via your AuthorRepository).
I'm using GWT RequestFactory + Hibernate + Spring in my web app.
I have Principal and Profile entities that relate to each other as one to one. They share the same primary key.
On a client side I write such a code, which causes NullPointerException:
If I exclude "principal.setProfile(profile);" code line, principal entity will be stored successfully. I can't figure out why profile entity can't be stored along with principal.
Any suggestions will be highly appreciated. Thanks in advance!
public RegistrationPanel() {
TarantulaFactory factory = GWT.create(TarantulaFactory.class);
factory.initialize(new SimpleEventBus());
PrincipalRequestContext principalCtx = factory.createPrincipalRequest();
ProfileRequestContext profileCtx = factory.createProfileRequest();
PrincipalProxy principal = principalCtx.create(PrincipalProxy.class);
principal.setLogin("Billy");
principal.setPassword("Corgan");
ProfileProxy profile = profileCtx.create(ProfileProxy.class);
profile.setNickname("A");
profile.setName("b");
profile.setEmail("ABCD34#gmail.com");
profile.setBirthDate(new Date());
profile.setCurrentLocation("Chicago");
principal.setProfile(profile);
profile.setPrincipal(principal);
principalCtx.save(principal).fire();
}
Stack trace:
//------------------------------------------------------------------------
21:09:24.992 [ERROR] [application] Uncaught exception escaped
java.lang.NullPointerException: null
at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$MyConstraintViolation.<init>(AbstractRequestContext.java:434)
at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$StandardPayloadDialect.processPayload(AbstractRequestContext.java:366)
at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$5.onTransportSuccess(AbstractRequestContext.java:1151)
at com.google.web.bindery.requestfactory.gwt.client.DefaultRequestTransport$1.onResponseReceived(DefaultRequestTransport.java:136)
at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:258)
at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:412)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:338)
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:219)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:242)
at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:293)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:547)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364)
at java.lang.Thread.run(Thread.java:722)
//------------------------------------------------------------------------
Below is the source code for entities, proxies and RequestFactory.
Here are entity classes:
Profile.java
package com.szybieka.tarantula.core.domain;
import java.util.Date;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import javax.validation.constraints.NotNull;
import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Parameter;
import org.hibernate.validator.constraints.Email;
import org.hibernate.validator.constraints.Length;
/**
*
* A Profile representing the user profile entity. Each user has single profile.
* Profile and {#link Principal} entities relate to each other as one-to-one.
* Shared primary key is used to join corresponding tables.
*
* #author Zmicer Szybieka
*
*/
#Entity
#Table(name = "profile", uniqueConstraints = { #UniqueConstraint(
columnNames = "id") })
public class Profile {
#Id
#NotNull
#Column(name = "id", unique = true)
#GeneratedValue(generator = "gen")
#GenericGenerator(name = "gen", strategy = "foreign",
parameters = #Parameter(name = "property", value = "principal"))
private Long id;
#Length(min = 1, max = 30)
private String nickname;
#Length(max = 30)
private String name;
#Column(name = "birth_date")
private Date birthDate; // date of birth, e.g. "20.01.1985"
#Length(max = 30)
#Column(name = "current_location")
private String currentLocation; // current location city, e.g. "NYC"
#Email
private String email;
private Date version;
#OneToOne(mappedBy = "profile", cascade = CascadeType.ALL)
private Principal principal; // the user principal corresponding to the
// profile
public Profile() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
// omit setters/getters
}
Principal.java
package com.szybieka.tarantula.core.domain;
import java.util.Date;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import org.hibernate.validator.constraints.Length;
/**
* A Principal representing an identity used to determine access rights to
* application. Principal relates to {#link Profile} entity as one-to-one.
* Shared primary key is used to join corresponding tables.
*
* #author Zmicer Szybieka
*
*/
#Entity
#Table(name = "principal", uniqueConstraints = { #UniqueConstraint(
columnNames = "id") })
public class Principal {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private Long id;
#Length(max = 20)
private String login;
#Length(max = 10)
private String password;
private Date version;
#OneToOne(cascade = CascadeType.ALL)
#PrimaryKeyJoinColumn
private Profile profile;
public Principal() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
// omit setters/getters
}
I use RequestFactory to connect with server side.
Here is my RequestFactory:
TarantulaFactory.java
package com.szybieka.tarantula.gwt.client.requestfactory;
import com.google.web.bindery.requestfactory.shared.Request;
import com.google.web.bindery.requestfactory.shared.RequestContext;
import com.google.web.bindery.requestfactory.shared.RequestFactory;
import com.google.web.bindery.requestfactory.shared.Service;
import com.szybieka.tarantula.gwt.client.proxy.PrincipalProxy;
import com.szybieka.tarantula.gwt.client.proxy.ProfileProxy;
import com.szybieka.tarantula.gwt.server.locator.PrincipalServiceLocator;
import com.szybieka.tarantula.gwt.server.locator.ProfileServiceLocator;
import com.szybieka.tarantula.gwt.server.service.PrincipalService;
import com.szybieka.tarantula.gwt.server.service.ProfileService;
public interface TarantulaFactory extends RequestFactory {
PrincipalRequestContext createPrincipalRequest();
ProfileRequestContext createProfileRequest();
#Service(value = ProfileService.class,
locator = ProfileServiceLocator.class)
public interface ProfileRequestContext extends RequestContext {
Request<Void> save(ProfileProxy profile);
Request<ProfileProxy> findProfile(Long id);
}
#Service(value = PrincipalService.class,
locator = PrincipalServiceLocator.class)
public interface PrincipalRequestContext extends RequestContext {
Request<PrincipalProxy> findPrincipal(String login, String password);
Request<PrincipalProxy> findPrincipal(Long id);
Request<PrincipalProxy> findPrincipalByLogin(String login);
Request<Void> save(PrincipalProxy principal);
Request<Void> remove(PrincipalProxy principal);
}
}
Here are proxies for entity classes:
ProfileProxy.java
package com.szybieka.tarantula.gwt.client.proxy;
import java.util.Date;
import com.google.web.bindery.requestfactory.shared.EntityProxy;
import com.google.web.bindery.requestfactory.shared.ProxyFor;
import com.szybieka.tarantula.core.domain.Profile;
import com.szybieka.tarantula.gwt.server.locator.ProfileLocator;
#ProxyFor(value = Profile.class, locator = ProfileLocator.class)
public interface ProfileProxy extends EntityProxy {
Long getId();
void setId(Long id);
// omit other getter/setter methods
}
PrincipalProxy.java
package com.szybieka.tarantula.gwt.client.proxy;
import com.google.web.bindery.requestfactory.shared.EntityProxy;
import com.google.web.bindery.requestfactory.shared.ProxyFor;
import com.szybieka.tarantula.core.domain.Principal;
import com.szybieka.tarantula.gwt.server.locator.PrincipalLocator;
#ProxyFor(value = Principal.class, locator = PrincipalLocator.class)
public interface PrincipalProxy extends EntityProxy {
Long getId();
String getLogin();
// omit other getter/setter methods
}
A RequestContext is a builder for a batch request that you eventually fire to send to the server for processing. All proxies have to be created and edited from the same RequestContext in a batch request.
Remove your use of ProfileRequestContext and replace profileCtx.create(ProfileProxy.class) with principalCtx.create(ProfileProxy.class).