How to add list of objects of class to the cookie in java

Question

Hi all ,
I have arraylist of the object of clases like
                       List<CLASSNAME> sampleList = new arrayList<CLASSNAME>;where CLASSNAME contains getter,setters of fields
How can I add this sampleList to the cookies because cookie only contain cookie name and cookie value which is string only.
    public void createNewCookie(String cookieName, String cookieValue, int cookieMaxAge){
    HttpServletResponse httpServletResponse = (HttpServletResponse)FacesContext.getCurrentInstance().getExternalContext().getResponse();
    Cookie cookie = new Cookie(cookieName, cookieValue);
    cookie.setMaxAge(cookieMaxAge);
    httpServletResponse.addCookie(cookie);
    public String getCookie(String cookieName){
    FacesContext vFacesContext = FacesContext.getCurrentInstance();
    ExternalContext vExternalContext = vFacesContext.getExternalContext();
    Map vRequestCookieMap = vExternalContext.getRequestCookieMap();
    Cookie vMyCookie = (Cookie)vRequestCookieMap.get(cookieName);
    if(vMyCookie != null)
       return vMyCookie.getValue();
    else
    return null;
   

Answer 1

Hi Timo,
My requirement is as follow.
When anonymous user visit the website he can add the list of items he checked to buy .Add these items to list.
When any user logged in assign this list to the that logged in user.When user logged out clear this list.
So i think I have to put this list in the SessionScope it will be the best.
But what about anonymous users . When many anonymous users visit the websites can they have different list according to the anonymous user in session scope