Hi Cyril, you do not have to use actions if you do not want :-) As I said, when you use session namespace, there is always a variable session there in the generated java code. You can access this session either directly in xsp page from within <xsp:logic> tags, or you can write your own taglib. This taglib can then implicitly use session variable, though it will never be declared there. What I propose to you is a kind of dirty programming style, but as I understood you want a quick solution.
Try something like this, you have to experiment and always look at the generated code: <?xml version="1.0"?> <xsp:page xmlns:xsp="http://apache.org/xsp"; xmlns:xsp-session="http://apache.org/xsp/session/2.0"; xmlns:xsp-request="http://apache.org/xsp/request/2.0"; create-session="true"> <html> <xsp:logic> // beginning of the java code try { // Cart items are maintained in the session object. Vector items = (Vector)session.getAttribute("cart.items"); if (items == null) { items = new Vector(10,5);} String item = req.getParameter("item"); items.add(item); session.setAttribute("cart.items",items); </xsp:logic> <b>The list of items is:</b> <xsp-session:get-attribute name="cart.items" default="not set"/> </html> </xsp:page> Roman -----Original Message----- From: Cyril Vidal [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 05, 2003 1:53 PM To: [EMAIL PROTECTED] Subject: Re: xsp session logicsheet Hi Roman, Indeed I've done this: <?xml version="1.0"?> <xsp:page xmlns:xsp="http://apache.org/xsp"; xmlns:xsp-session="http://apache.org/xsp/session/2.0"; xmlns:xsp-request="http://apache.org/xsp/request/2.0"; create-session="true"> <html> <xsp-session:set-attribute name="cart.items"><xsp-request:get-parameter name="item"/></xsp-session:set-attribute> <b>The list of items is:</b> <xsp-session:get-attribute name="cart.items" default="not set"/> <br/> <b>Your session was created:</b> <xsp-session:get-creation-time as="string"/> </html> </xsp:page> My problem is the following: I would like to add items to the attribute's session 'cart.items'. For the moment, the preceding code doesn't do this task. When I call http://localhost:8080/cocoo/mount/try/session.xsp?item=3 I receive the following html result: The list of items is: 3 Your session was created: Wed Feb 05 13:41:32 CET 2003 when I then call http://localhost:8080/cocoo/mount/try/session.xsp?item=5 The result is the following: The list of items is: 5 Your session was created: Wed Feb 05 13:41:32 CET 2003 and of course, I would like The list of items is: 3, 5 Your session was created: Wed Feb 05 13:41:32 CET 2003 What i would like to know : is it possible to achieve this task by using Session Logicsheet by itself, does this Logicsheet provides this functionnality? If not, the alternative is also to use actions, as suggested in this thread before? Is a built-in action available for this, or do I have to build one from scratch? Any help or hint would help me, Thanks, Cyril. > Hi Cyril, > try adding > > xmlns:session="http://apache.org/xsp/session/2.0"; > > namespace to your xsp page. Then have a look at the generated code. > Basically you should see a java variable (object) named "session", with it > you can do what you want. No need to declare it, cocoon does it for you. > Roman > > -----Original Message----- > From: Cyril Vidal [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, February 05, 2003 11:01 AM > To: [EMAIL PROTECTED] > Subject: Re: xsp session logicsheet > > > > Thanks for you response. > hum, I guess actions are still a little bit too complex for me, regarding my > knowledge of Cocoon... > > Isn't it really possible to add merely values to the same session's > attribute with the ESQL logicsheet? It sounds odd... > > Cyril. > > > Hi Cyril > > Why don't use an action, I think it's better not to have too much Java > code > > in your xsp-pages. > > In an action you can take your code as it is. > > Cheers > > Beat > > > > > Hi, > > > > > > I would like to deal with session through xsp, and serve as far as > > > possible > > > the same goal as with the following servlet: e.g put all the parameters > > > named 'item' in the object of type Vector 'items' bound to the current > > > session, so that it would be possible to list at any time all of the > items > > > chosen so far by the client in his session. > > > > > > public void doGet(HttpServletRequest req, HttpServletResponse res) > > > throws ServletException, IOException { > > > res.setContentType("text/html"); > > > PrintWriter out = res.getWriter(); > > > > > > // Get the current session object, create one if necessary. > > > HttpSession session = req.getSession(true); > > > > > > // Cart items are maintained in the session object. > > > Vector items = (Vector)session.getAttribute("cart.items"); > > > if (items == null) { items = new Vector(10,5);} > > > > > > String item = req.getParameter("item"); > > > items.add(item); > > > > > > session.setAttribute("cart.items",items); > > > > > > out.println("<HTML><HEAD><TITLE>SessionTracker > > > modifie</TITLE></HEAD>"); > > > out.println("<BODY><H1>Session Tracking Demo</H1>"); > > > > > > // Print the current cart items. > > > out.println("You currently have the following items in your > > > cart:<BR>"); > > > if (items == null) { > > > out.println("<B>None</B>"); > > > } > > > else { > > > out.println("<UL>"); > > > for (int i = 0; i < items.size(); i++) { > > > out.println("<LI>" + items.get(i)); > > > } > > > out.println("</UL>"); > > > } > > > > > > > > > out.println("</BODY></HTML>"); > > > } > > > } > > > > > > Below is the xsp i've written for the moment,: this is working fine, > but > > > does not do what I want: because each time the client chooses an item > and > > > pass it via the parameter 'item', instead of being added in the object > > > cart.items, its value overrides this of the preceding parameter. > > > > > > <?xml version="1.0"?> > > > > > > <xsp:page > > > > > > xmlns:xsp="http://apache.org/xsp"; > > > > > > xmlns:xsp-session="http://apache.org/xsp/session/2.0"; > > > > > > xmlns:xsp-request="http://apache.org/xsp/request/2.0"; > > > > > > create-session="true"> > > > > > > <html> > > > > > > <xsp-session:set-attribute name="cart.items"><xsp-request:get-parameter > > > name="item"/></xsp-session:set-attribute> > > > > > > <b>You currently have the following items in your cart:</b> > > > <xsp-session:get-attribute name="cart.items"/> > > > > > > <br/> > > > > > > <b>Your session was created:</b> <xsp-session:get-creation-time > > > as="string"/> > > > > > > </html> > > > > > > </xsp:page> > > > > > > Some of you would know how I can improve my code? Indeed, I would like > > > cart.items to be like a Vector, so that it would be possible to put > merely > > > values onto it. > > > Thanks in advance for your help, > > > Cyril. > > > --------------------------------------------------------------------- Please check that your question has not already been answered in the FAQ before posting. <http://xml.apache.org/cocoon/faq/index.html> To unsubscribe, e-mail: <[EMAIL PROTECTED]> For additional commands, e-mail: <[EMAIL PROTECTED]>
