Java External

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Apr 21st, 2025

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/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/J2EE/EJB30/StatelessEjbClass.java to edit this template
*/
package urvil.finaldemo.beans;
import java.util.Collection;
import javax.ejb.Stateless;
import javax.faces.context.FacesContext;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import urvil.finaldemo.entity.Usertbl;
/**
*
* @author urvil
*/
@Stateless
public class UserBeans implements UserBeansLocal {
@PersistenceContext(unitName = "my_persistence_unit")
EntityManager em;
@Override
public void addUser(Usertbl user) {
em.persist(user);
}
@Override
public void deleteUser(int id) {
Usertbl u = em.find(Usertbl.class, id);
if (u != null) {
em.remove(u);
}
}
@Override
public void updateUser(Usertbl user) {
Usertbl u = em.find(Usertbl.class, user.getId());
if (u != null) {
u.setAge(user.getAge());
u.setEmail(u.getEmail());
u.setName(user.getName());
em.merge(u);
}
}
@Override
public Usertbl getUser(int id) {
return em.find(Usertbl.class, id);
}
// Add business logic below. (Right-click in editor and choose
// "Insert Code > Add Business Method")
@Override
public Collection<Usertbl> getAll() {
return em.createNamedQuery("Usertbl.findAll").getResultList();
}
@Override
public Usertbl login(String email, String name) {
Collection<Usertbl> users = em.createNamedQuery("Usertbl.findByNameAndEmail").setParameter("name", name).setParameter("email", email).getResultList();
if(users.isEmpty()){
return null;
}
FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("user", users.iterator().next());
return users.iterator().next();
}
}
//CDI
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/JSF/JSFManagedBean.java to edit this template
*/
package urvil.finaldemo.beans;
import java.io.Serializable;
import java.util.Collection;
import javax.ejb.EJB;
import javax.inject.Named;
import javax.enterprise.context.Dependent;
import javax.faces.context.FacesContext;
import urvil.finaldemo.entity.Usertbl;
/**
*
* @author urvil
*/
@Named(value = "usercdi")
@Dependent
public class Usercdi implements Serializable {
private Usertbl user = new Usertbl();
@EJB
UserBeansLocal userBeansLocal;
public Usertbl getUser() {
return user;
}
public void setUser(Usertbl user) {
this.user = user;
}
public UserBeansLocal getUserBeansLocal() {
return userBeansLocal;
}
public void setUserBeansLocal(UserBeansLocal userBeansLocal) {
this.userBeansLocal = userBeansLocal;
}
/**
* Creates a new instance of Usercdi
*/
public Usercdi() {
}
public String login() {
Usertbl u = this.userBeansLocal.login(user.getEmail(), user.getName());
if (u != null) {
System.out.println("Login");
return "display";
}
this.user = new Usertbl();
return "index";
}
public Collection<Usertbl> findAll() {
return this.userBeansLocal.getAll();
}
public String insert() {
this.userBeansLocal.addUser(user);
this.user = new Usertbl();
return "display";
}
public String update(Usertbl user) {
this.user = user;
return "update";
}
public String update() {
this.userBeansLocal.updateUser(user);
this.user = user;
return "display";
}
public String delete(int id) {
this.userBeansLocal.deleteUser(id);
return "display";
}
public String logout() {
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
return "index";
}
}

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