Dynamic XML Transformation

I was wondering if you know of any way/algorithm to dynamically build an XML Stylesheet in Java to transform an XML message. The scenario is that I want to dynamically inquire on XML message(s) by certain elements. The query can be different and any number of combinations. So I would like to translate the queries into XSL and then tranform the original XML message to return the appropriate data.

For example:
<company>
<employee>
<name>John Doe<name>
<SSN>123-45-6789</SSN>
</employee>

<employee>
<name>Jane Doe<name>
<SSN>987-65-4321</SSN>
</employee>

<employee>
<name>John Davis<name>
<SSN>111-11-1111</SSN>
</employee>

<employee>
<name>John Murphy<name>
<SSN>111-22-2222</SSN>
</employee>
</company>

Now if I I get a query for anyone named John, I would like build the apporpriate XSL to represent this and then tranform the XML above to return only the employees John (Doe, Davis, Murphy).

At the same time I want the same Java code to be able to dynamically build an XSL stylesheet if a query was made for anyone named John and has a SSN that starts with 111. So then I can use this XSL to transform the XML to only return John Davis and John Murphy.

I would appreciate any assistance. Thanks

Well, you can pass parameters to your xsl file to use during the transform, that might be easier than building a new style sheet each time. It does mean putting logic into your style sheet to determine when a value is set and when to use it, etc.

The other option would be to use a jsp (or similar java code that generates a string) as your style sheet. Then you can put your logic in the java code (if a first name was passed, include the snippet for sorting on first name, if a last name was passed, include the snippet for sorting last name), that idea.