How to connect to SAP AS JAVA?

Hi,

I am developing an JAVA application, which will connect to SAP AS Java dataSource. My environment don't have ABAP installed. So, I believe use of JCo connector is not an option.

Is ther any other connector API jar available to connect to SAP AS JAVA Datasource?

Could anyone please help me with a detail guide to connect to SAP AS Java Datasource using any APIs provided by SAP?

Thanks

Alingan