LDO's are lightweight data objects, Java classes that provide query and update access a single table or view in a SQL database. The LDO utility provides a user-friendly interface to generate that JDBC code.
JTools.Ruby is easy way to accessJava 2 class-files via scripts written in Ruby language. There are class-file disassembler, assembler and simple Ruby to Java bytecode compiler. The work is at the start point.