Re: Objects in Vector are loosing type

[Ivan]

Thank you for your reply   It returns novick.urlprog.CHyperlink  which is the name of the class, however when i do if (instanceof novick.urlprog.CHyperlink) the condition fails   this code       if (obj instanceof novick.urlprog.CHyperlink)     {                 link = (CHyperlink) obj;                 out.print("<br> " + link.GetHTML());     }     else     {           out.print("<br> " + obj.getClass().getName() );     }   returns   novick.urlprog.CHyperlink   for each object in the vector which seems impossible because the the name of the class is the same as what i tested for in the if statement!   any ideas? ----- Original Message ----- From: Hawkins, Keith (Keith) To: [EMAIL PROTECTED] Sent: Friday, April 27, 2001 3:46 PM Subject: RE: Objects in Vector are loosing type What do you get if you call getClass().getName()  on the obj at the point you are getting the items back out of the vector? -----Original Message----- From: Ivan [mailto:[EMAIL PROTECTED]] Sent: Friday, April 27, 2001 5:14 PM To: [EMAIL PROTECTED] Subject: Objects in Vector are loosing type Does anyone know what is going on with the this weird problem?   I have a class named CHyperklink   I putting a vector into a session object and then adding CHyperlink objects to the vector.   When I retrieve the vector (with no problem) from the session object, I can cast the objects back to CHyperlinks if do it in the same servlet that put the objects in the vector.   If i retrieve the objects from the vector from a diffrent servlet than the one the put the objects into the vector, they all come out of the vector but they are not instanceof CHyperlink anymore and I cannot cast them back to CHyperlink.   When i call tostring() on the objects in the vector i get output indicating that they are still CHyperlinks.   I am stuck because i cant cast back to the CHyperlink and call the appropriate methods.  Does anyone know what is happending?     Here is output for tostring calls on objects in vector   novick.urlprog.CHyperlink@f11e4598 novick.urlprog.CHyperlink@97064598 novick.urlprog.CHyperlink@942a4598 novick.urlprog.CHyperlink@909e4598 novick.urlprog.CHyperlink@9c5a4598   Here is code for inserting vector              CHyperlink hlink;             hlink = new CHyperlink(address, description, name);             // create hyperlink object               HttpSession session = request.getSession();             // get session               Vector urls = (Vector) session.getAttribute("vector");             // get vector from session               if (urls == null)             // vector does not exist yet             {                   urls = new Vector();                   // create new vector                     session.setAttribute("vector",urls);                   // adds urls vector to session if not already there             }               urls.add(hlink);             // add the hyperlink to the vector   here is code for retrieving vector               HttpSession session = request.getSession();               Vector v2 = (Vector) session.getAttribute("vector");             // get vector from session               Object obj;             CHyperlink link;             // temp variables                if ( v2 != null)              {                    out.print("Got the vector");                      for (int i = 0 ; i < v2.size() ; ++i)                    {                         obj = v2.get(i);                           if (obj instanceof novick.urlprog.CHyperlink)                         {                               link = (CHyperlink) obj;                               out.print("<br> " + link.GetHTML());                         }                                                 else                         {                               out.print("<br> " + obj.toString() );                         }                }   }