Hi,
You can try this approach.
In the place of string array, you can use a Vector, to
which you can add the required elements and pass it to the tag library
definition. Ofcourse, you need to change the code a little to use a Vector
in place of a string. Anyway you have to do some code change, even if you
use the String tokenizer approach.
regards,
balaji.
----- Original Message -----
From: "cbarnes" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, March 21, 2002 5:43 PM
Subject: attributes for custom tags
> I am writing a custom tag where one of the attributes required is a String
> array. I know I'm being awkward but I want to be able to create this
string
> array within the custom tag line. I imagined that I would be able to do
> something like the following
>
> <prefix:mytag myattribute="<%= new String[] {item1, item2, item3} %>" />
>
> However, tomcat wants to translate the type into something.class, but gets
> muddled up because of the [].
>
> I then thought I could change the String array into a String of comma
> separated items, and allow the custom tag to convert this into a string
> array using a StringTokenizer. However, the problem here is that each of
the
> items in the list is an expression. I had imagined that if I did something
> like the following
>
> <prefix:mytag myattribute="<%= item1 %>, <%= item2 %>, <%= item3 %>" />
>
> that each expression would be evaluated. But it doesn't. It recognises the
> first <%= and the last %> and tries to evaluate everything in between as
one
> expression.
>
> If I change it to
>
> <prefix:mytag myattribute="<%= item1, item2, item3 %>" />
>
> the expressions don't get evaluated and it doesn't consider it as one
quoted
> string anyway.
>
> Can anyone suggest how to get either of these 2 approaches to work, or
> suggest a different approach to set a custom tag attribute that is a list
of
> expressions?
>
> Thanks,
> Catharine
>
>
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