JSP-INTEREST Digest - 19 Aug 2005 to 22 Aug 2005 (#2005-40) 2005-08-24 - By Nikolay Georgiev
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Hi Dharmendra,
Thank you for the answer. I tried the way you said, but the "response"
variable is non-final too. I think that my apporoach is not right,
because I don't see the connection between the web page(the jsp page)
and the frame. When something happens in the frame, I can't find a way
to tell the web page to do something. The JSP is first shown to the
user and after that the Frame. I don't know how to get it work, maybe
i'll try to make the frame as applet, the applet has the funcionality
to communicate with the page in which is loaded. This boolean
function, that I call when the button is pressed, reads from the hdd,
and I don't know whether I can use it within the applet, but I'll try.
Have a nice day,
Nikolay
On 8/23/05, Automatic digest processor <LISTSERV@(protected)> wrote:
> There is one message totalling 127 lines in this issue.
>
> Topics of the day:
>
> 1. JSP with JFrame
>
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> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
>
> Date: Mon, 22 Aug 2005 09:48:54 -0400
> From: Dharmendra Sharan <Dharmendra.Sharan@(protected)>
> Subject: Re: JSP with JFrame
>
> Hi Nikolay,
>
> That's correct, the "out" variable generated by the JspWriter is not > the
same as the one which is generated for the JSP fragments within the > "new
ActionListener() {...}" definition. And the error simply says that > the
JspWriter's "out" method is not final and hence not accessible to > the inner
class defined with "new ActionListener() {...}".
>
> Could you not use something as below:-
>
> button.addActionLister(
>
> new ActionListener() {
> // code here
>
> PrintWriter outPW response.getWriter();
>
> boolean res=function();
> if (res) {
> outPW.print("TRUE");
> }
> else {
> outPW.print("FALSE"
> }
> }
> );
>
> HTH,
>
> Dharmendra
> ps: have a good day!
> -- --Original Message-- --
> From: A mailing list about Java Server Pages specification and reference
> [mailto:JSP-INTEREST@(protected)]On Behalf Of Nikolay Georgiev
> Sent: Friday, August 19, 2005 6:57 PM
> To: JSP-INTEREST@(protected)
> Subject: JSP with JFrame
>
>
> Hello Everyone,
>
> I'm developing a JSP page and can not do the following thing:
> The JSP page should lunch a JFrame (basically it's a panel with a
> button). There is a listener to the button and when the user click it,
> it calls a boolean function. And I want depending on the returned
> result from this function to show different JSP pages.
>
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----->
> MY APPROACH: So here is what I've done:
>
> In my JSP page, i've added the listener to the button (
> button.addActionLister( new ActionListener() {
> // code here;
> boolean res=function();
> if (res) { %> OK <% }
> else { %> FALSE <% }
> } );
>
>
> But when run this JSP on Tomcat, it gives the error:
> Cannot refer to a non-final variable out inside an inner class defined
> in a different method
> The problem here is that, The JSP is converted into Serlet which
> contains the non-final variable "out" from type JspWriter and I cannot
> access it. I've changed it to final in the created servlet and then
> recompiled it, but somehow It doesn't work and I don't know what to
> do.
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----->
> Maybe my approach is too difficult or I don't know. Any suggestions
> would be great.
>
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> -- ---- ---- ---- ---- ---- --
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> End of JSP-INTEREST Digest - 19 Aug 2005 to 22 Aug 2005 (#2005-40)
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