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Re: How can i access a JSP function in XSL?
- From: Peter Davis <pdavis152 at attbi dot com>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Wed, 1 May 2002 03:27:48 -0700
- Subject: Re: [xsl] How can i access a JSP function in XSL?
- References: <OF860311B0.7C0D348E-ONE5256BAC.0030DAAA@itsindia.com>
- Reply-to: xsl-list at lists dot mulberrytech dot com
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On Wednesday 01 May 2002 02:18, Suman.Sathyanarayan@itsindia.com wrote:
> <% getTelephoneNumber(" %>
> <xsl:value-of select="value"></xsl:value-of>
> <% "); %>
When the JSP is executed and when the XSLT is executed are *totally*
different. You can't use a value returned from the XSLT while the JSP is
running, because the JSP *outputs* the XSLT -- which means the XSLT is
executed after the JSP.
What you have here will essentially be the same as:
<% getTelephoneNumber("\n <xsl:value-of select=\"value\"/> \n"); %>
which is probably not what you want. You will have to do one of three things:
* If you are making an HTML page, then you will have to do something like this
in your XSLT:
<input type="hidden" name="phone" value="{value}"/>
which uses an Attribute Value Template that will output the phone number into
the <input value="..."/>. You then have to put that into a <form> and make
the user click "submit" to return the value to the server where you can do
more processing -- pretty ugly.
* Check out the Cocoon project (http://xml.apache.org/cocoon), and convert all
of your .jsp files to .xsp. This is a totally new language, so converting
won't be easy, but it *might* be able to do what you want (emphasis on
*might*, since you still won't be able to use XSLT directly in the page)
* Use your processor's extension mechanism to be able to access
getPhoneNumber() in the XSLT, so you can do something like:
<xsl:value-of select="xx:getPhoneNumber(value)"/>
This is probably the best way to go, but it depends on a lot of other factors
such as the processor, where getPhoneNumber is defined, and whether
getPhoneNumber relies on non-static state that is innaccessible from where it
is called by the extension.
- --
Peter Davis
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