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List:       taglibs-user
Subject:    URGENT: RE: param tag and other suggestions
From:       Anthony Ikeda <anthony.ikeda () proxima-tech ! com>
Date:       2000-11-30 4:33:47
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My virus checker found this on this e-mail:

Antigen for Exchange found param.zip->xsl.jar infected with
CorruptedCompressedFile virus.
The file is currently Detected.  The message, "param tag and other
suggestions", was
sent from Marius Scurtescu  and was discovered in IMC Queues\Inbound
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Anthony Ikeda,
Web Application Developer,
Proxima Technology,

Level 13,
181 Miller Street,
North Sydney
Australia


PH: +612-9458-1718
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> -----Original Message-----
> From: Marius Scurtescu [mailto:marius@multiactive.com]
> Sent: Thursday, 2 November 2000 11:37 AM
> To: taglibs-dev@jakarta.apache.org; taglibs-user@jakarta.apache.org
> Subject: param tag and other suggestions
> 
> 
> Hi,
> 
> I run into a problem with the 'apply' tag: there is no way
> specify a stylesheet parameter.
> 
> By looking at the source code I realized that it would be 
> quite easy to add this functionality, and since I needed
> it I decided to implement it.
> 
> The way I solved the problem is by adding an extra tag,
> called 'param', which is supposed to be used only directly
> inside an 'apply' tag. This 'param' tag will get the stylesheet
> parameter name and value and pass them to the 'apply' tag.
> The 'apply' tag will set these parameters, if any, to the
> XSLT processor just before doing the processing.
> 
> An example:
> <xsl:apply xml="some.xml" xsl="some.xsl">
>   <xsl:param name="name1" value="value1"/>
>   <xsl:param name="name2" param="reqname"/>
> </xsl:apply>
> 
> The parameter value can be specified in two ways: directly
> with the 'value' attribute or by referencing a request
> parameter with the 'param' attribute.
> 
> I added tow classes to the package: ParamTag and ParamTEI.
> ApplyTag was slightly modified. It has a method, setParam,
> through which one can add parameters and these parameters
> are applied before processing. I added a comment starting
> with "// marius:" where I modified ApplyTag.
> 
> Is there a process in place through which I could get
> commit rights?
> 
> The attached zip files contains the added and modified
> source code and tld and also the compiled code if you
> want to try this out.
> 
> A few other suggestions and comments:
> 
> - the "xml" attribute of the apply tag is not very useful,
> it will try to locate an xml file in the folder where the
> application is installed but any realistic xml file will not
> reside there
> 
> - the body of the 'apply' tag can contain the actual xml file
> and this does not make much sense; the xml part of the
> transformation is the most likely to be the dynamic one and
> you would not hard code it into your jsp file; it would make
> all the sense in the world to hardcode the xsl file since
> this represent style just as jsp does
> 
> - I suggest adding two new tags: xml and xsl; these tags
> would be used inside the apply tag and will offer an
> alternative to hardcode the xml and xsl content
> 
> An example using the xsl:
> <xsl:apply xml="some.xml">
>   <xsl:param name="name" value="xxx"/>
>   <xsl:xsl>
>     <?xml version="1.0" encoding="UTF-8"?>
>     <xsl:stylesheet version="1.0" xmlns:xsl="...">
>       <xsl:output method="html" indent="yes"/>
>       ...
>     </xsl:stylesheet>
>   </xsl:xsl>
> </xsl:apply>
> 
> If these tags are used then the body of 'apply' can be always
> ignored and the xml and xsl data would be set by these
> inner tags.
> 
> It would also make sense to create an ApplyTEI class to deal 
> with the arguments instead of doing this in the ApplyTag itself.
> 
> I apologies if some of my observations are stupid due
> to ignorance, I am new to this list and to xsl.
> 
> Regards,
> Marius
> 
> -- 
> ------------------
> Marius Scurtescu, Software Engineer
> Tel: (604) 899-2835 Fax: (604) 899-2899
> mailto:marius@multiactive.com
> Multiactive Software Inc. http://www.multiactive.com
> ------------------
> Attract and retain customers with Multiactive Software --
> proud winners of PC WEEK's "Best of COMDEX" award.
> ------------------
> 

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