# API and Documentation for CloverETL Designer

**URL:** <https://forum.cloverdx.com/t/api-and-documentation-for-cloveretl-designer/760>\
**Category:** CloverDX Platform\
**Created:** [October 11, 2010, 12:00am UTC](https://forum.cloverdx.com/t/api-and-documentation-for-cloveretl-designer/760 "2010-10-11T00:00:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![David\_Hlidek](https://avatars.discourse-cdn.com/v4/letter/d/58f4c7/32.png) [@David\_Hlidek](https://forum.cloverdx.com/u/David_Hlidek)\
**Post date:** [October 11, 2010, 12:00am UTC](https://forum.cloverdx.com/t/api-and-documentation-for-cloveretl-designer/760/1 "2010-10-11T00:00:00Z")

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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

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**Author:** ![avackova](https://avatars.discourse-cdn.com/v4/letter/a/65b543/32.png) [@avackova](https://forum.cloverdx.com/u/avackova)\
**Post date:** [October 11, 2010, 11:11am UTC](https://forum.cloverdx.com/t/api-and-documentation-for-cloveretl-designer/760/2 "2010-10-11T11:11:36Z")

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