[Libreoffice] SDK LibreOffice How to get document as object?

[webmaster at csz-online.de]

Hi,

I'm currently working on some data format exportation tests with the  
LibreOffice SDK and Java. I want to develop an addon, which can export  
the current opened file in another dataformat. I already have some  
converter-methods, which can be used. The only thing I need is to get  
access to the opened document in some Java object(s).

I already tried to search in the development manuals of LibreOffice  
and OpenOffice but there was no result. Perhaps anyone of you guys  
could help?

Best regards,
Clemens Schulz