Obba provides a bridge from spreadsheets (Excel or OpenOffice) to Java classes. With Obba, you can easily build spreadsheet GUIs to Java code. Its main features are:
Loading of arbitrary jar or class files at runtime through an Excel worksheet function.
Instantiation of Java objects, storing the object reference under a given object label.
Invocation of methods on objects referenced by their object handle, storing the handle to the result under a given object label.
Asynchronous method invocation and tools for synchronization, turning your spreadsheet into a multi-threaded calculation tool.
Serialization and de-serialization (save Serializable objects to a file, restore them any time later).
All this though spreadsheet functions, without any additional line of code (no VBA needed, no additional Java code needed).
||Free to try
Windows Server 2008,
||Java Runtime Environment 1.5, Microsoft Excel 2000/OpenOffice 3.0