PrimeFaces Context

package org.primefaces.showcase.view.misc;

import org.primefaces.PrimeFaces;
import org.primefaces.showcase.domain.User;

import jakarta.annotation.PostConstruct;
import jakarta.enterprise.context.RequestScoped;
import jakarta.faces.application.FacesMessage;
import jakarta.faces.context.FacesContext;
import jakarta.inject.Named;

@Named
@RequestScoped
public class RequestContextView {

    private User user;

    @PostConstruct
    public void init() {
        user = new User();

        if (!FacesContext.getCurrentInstance().isPostback()) {
            PrimeFaces.current().executeScript("PrimeFaces.info('This message is added from backing bean.')");
        }
    }

    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }

    public void save() {
        PrimeFaces.current().ajax().addCallbackParam("saved", true);    //basic parameter
        PrimeFaces.current().ajax().addCallbackParam("user", user);     //pojo as json

        //execute javascript oncomplete
        PrimeFaces.current().executeScript("PrimeFaces.info('Hello from the Backing Bean');");

        //update panel
        PrimeFaces.current().ajax().update("form:panel");

        //scroll to panel
        PrimeFaces.current().scrollTo("form:panel");

        //add facesmessage
        FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("Success", "Success"));
    }
}

package org.primefaces.showcase.domain;

import java.io.Serializable;

public class User implements Serializable {

    private String firstname;
    private String lastname;
    private Integer age;
    private String street;
    private String city;
    private String postalCode;
    private String info;
    private String email;
    private String phone;

    public String getFirstname() {
        return firstname;
    }

    public void setFirstname(String firstname) {
        this.firstname = firstname;
    }

    public String getLastname() {
        return lastname;
    }

    public void setLastname(String lastname) {
        this.lastname = lastname;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getStreet() {
        return street;
    }

    public void setStreet(String street) {
        this.street = street;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getPostalCode() {
        return postalCode;
    }

    public void setPostalCode(String postalCode) {
        this.postalCode = postalCode;
    }

    public String getInfo() {
        return info;
    }

    public void setInfo(String info) {
        this.info = info;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }
}