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From "James Strachan" <james_strac...@yahoo.co.uk>
Subject Re: xtags questions
Date Sat, 23 Jun 2001 07:58:56 GMT
Hi Elisa

In XTags all page, request, session and application scope attributes, as
well as parameters are all available as XPath variables.

So you can do the following:

<xtags:parse id="data" uri="xml/mydata.xml"/>
<xtags:forEach select="//item">
    <xtags:if test="./title=$Criteria'">
        <% totalcount++; %>
    </xtags:if>
</xtags:forEach>

Though the above could be done as

<xtags:parse id="data" uri="xml/mydata.xml"/>
The total is
<b>
<xtags:valueOf select="count(//item[title=$Criteria])"/>
</b>

Or a scripting variable could be declared

<xtags:variable id="total" select="count(//item[title=$Criteria])"/>
The total is <%= total %>

James
----- Original Message -----
From: "Elisa Green" <elisa.green@sheridanc.on.ca>
To: "Tablib User Group" <taglibs-user@jakarta.apache.org>
Sent: Friday, June 22, 2001 7:02 PM
Subject: xtags questions


> I am trying to build a search results page using xtags in JSP and
> would like to count the number of items from my parsed data which
> match the input search string (criteriaIn).
>
> My thinking has brought me to the following problem.  I would
> like to use criteriaIn to match each item's title, but it does
> not behave as I expected.  Is there a way to work around this?
> Or more to the point, is there a feature of taglibs that I have
> completely overlooked?
>
> Relevant code:
> ------------------
> <%!
>     String criteriaIn;
>     int totalcount;
> %>
> <%
>     totalcount = 0;
>     criteriaIn = request.getParameter("Criteria");
> %>
>
> <%@ taglib uri="/WEB-INF/taglibs/xtags.tld" prefix="xtags" %>
>
> <xtags:parse id="data" uri="xml/mydata.xml"/>
> <xtags:forEach select="//item">
>     <xtags:if test="./title='<%= criteriaIn %>'"><% totalcount++;
> %></xtags:if>
> </xtags:forEach>
> -------------------
> If a fixed string is used, as the following sample demonstrates,
> it works as expected.
>
> ---------------
> <xtags:parse id="data" uri="xml/mydata.xml"/>
> <xtags:forEach select="//item">
>     <xtags:if test="./title='Nootka'"><% totalcount++;
> %></xtags:if>
> </xtags:forEach>
> ----------------
>
> Any help will be appreciated.  Is there any good references for
> JSP & Taglibs combined, online?
>
> Thanks in advance.
>
> Elisa
>


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