Jasper OLAP-Community version -Oracle tables

Hi,

I am new to Jaspersoft BI and need to do some work on the OLAP side (creation of cubes etc) with my database tables in Oracle. Will i be able to do so with the community version of the OLAP Workbench or  will the trial version S/W of 30 days on the japsersoft site help to do it i.e http://www.jaspersoft.com/jaspersoft-business-intelligence-software-trial as it has reference to Jaspersoft OLAP.

I am asking this doubt  because the manuals say the community edition only has drivers for  MySQL, PostgreSQL and Ingres.If so can anybody suggest is there a way to connect to Oracle tables without the professional edition 

Thanks