exporting models in Java or C#

I'm interested in exporting models in Java or C# rather than PMML. I don't see any way to do this, but would think Java should be easy. Any ideas on how to do it?

Most of our data mining models generate PMML which can be parsed using the XML nodes in KNIME, for an example see our public server workflows. In order to convert PMML into any other format, you need to have a coverter node in place, this can be a Java Snippet or an External Tool (Labs) node which can make the transition from PMML/parsed-XML to Java or any other format you have an library for.