In general EclipseLink does support HANA as of 2.5.x:
EclipseLink/Development/DatabasePlatform/HANAPlatform - Eclipsepedia
However if I look at the header of the EclipseLink library for HANA I found the following supported features list:
* <b>Database Platform for SAP HANA</b> <br>
*
* <p>
* <b>Feature Testing</b><br>
* ----------------------
* <ul>
* <li>DDL Generation - Succeeds
* <li>Outer Join - Succeeds
* <li>Subquery - Succeeds
* <li>Stored Procedure Calls - Not supported
* <li>Stored Procedure Generation - Not supported
* <li>Native Sequences/Identifier fields - Succeeds
* <li>JPA Bulk Update/Delete - Succeeds with Limitations
* <li>Batch Reading - Succeeds
* <li>Batch Writing - Succeeds
* <li>Pessimistic Locking - Succeeds with Limitations
* <li>First Result/Limit - Succeeds with Limitations
* <li>Expression Framework - Succeeds with Limitations
* <li>Delimiters - Succeeds
* <li>Auto Detection - Succeeds