To answer my own question, maybe, see: ModuleDemo.java in the examples. With that I can operate on an ANode or a Value, at least. For now, that is all that I need. I will have to look into what method signatures are recognized. Kendall From: <basex-talk-bounces@mailman.uni-konstanz.de> on behalf of Kendall Shaw <kendall.shaw@workday.com> Date: Monday, September 26, 2016 at 1:21 PM To: "basex-talk@mailman.uni-konstanz.de" <basex-talk@mailman.uni-konstanz.de> Subject: [basex-talk] java binding standardfunc and querymodule The documentation describes extending QueryModule for writing a module in java. I want to write functions that are passed items. If I look at the concat function it uses Expr.atomItem passing QueryContext and InputInfo. Is there a way to get at InputInfo from a class that extends QueryModule? Or, another way to write functions that transform items? Kendall