是否可以从XSLT样式表中实例化Java表单？

I'm not well-versed in Java nor XML/XSLT but I've inherited a project using both, and my situation boils down to this: I have an XSLT stylesheet that uses Xalan to modify a database based on the data in an XML document. I want to be able to do a comparison against existing database information, and if a probable match is found, instantiate a Java form to ask the user whether or not to overwrite the matching information, or keep it, or modify it or whatever, then modify the database based on the user input.I'm not well-versed in Java nor XML/XSLT but I'