@Named
@RequestScoped
public class RequestContextView {
  
    private User user;
    
    @PostConstruct
    public void init() {
        user = new User();
        
        if(!FacesContext.getCurrentInstance().isPostback()) {
            PrimeFaces.current().executeScript("alert('This onload script 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"));
	}
}

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;
	}
}