I don't know if this is what you are looking for, Jeplus (http://www.iesd.dmu.ac.uk/~yzhang/wiki/doku.php?id=software:java:jeplus), is an open source java (I believe) parametric engine for Eplus.
Hope it helps,BestSantiago.2013/2/25 RedTarGui <cissino@xxxxxxxxxxx>
Hello,
I don't want to seem lazy, but I'm building an IDF model library on Java for energy simulation interoperability, with parsing and writing skills, and I wonder whether this kind of library already exists, and would be available as an Open Source shared code, or through a scientific cooperation.
Thank you,
Yacine,
Research engineer at CEA, France
NB : CEA has a convention program with the Department of Energy (DoE)