API and Documentation for CloverETL Designer

Helllo,
I want to make a component for CloverETL designer. I started with the manual “Creating a custom component”. But on the page 10 and the others, there are imported classes org.jetel.graph.*

I wanted to read the API for these classes (the documantation, I don’t know, how it works), but I didn’t find them anywhere.
Please, be so nice and give me some link, were it is nested.

Thank you.
Jana

Hello Jana,
java docs as well as open-source code can be downloaded from http://sourceforge.net/projects/cloveretl/files/ . Package org.jetel.component contains many components, that you can use as a base for your component.