I'm currently using jsr-168 portlets in Oracle Portal 11g. What i am trying to achieve is save configuration data per portlet instance. This means that if I store my configuration data in a portlet instance, this data must not be persisted across different portlet instances, only for the specific portlet instance that the data is saved.
I've tried to store data by using the javax.portlet.PortletPreferences class but i can see now that across different portal users the data is lost.
Is there any other way to store *"portlet instance scoped"* data by using the jsr-168 api?