Hi,
the SAP HANA procedure is not created at class activation but once you first execute the ABAP class method.
Alternatively, you may want to use the report RSDBGEN_AMDP to create the HANA artefacts manually.
Best,
Jasmin
BTW: You may have a look at http://scn.sap.com/community/abap/hana/blog/2014/10/01/lets-explore-amdp--what-is-happening for additional infos.