The JDBC url for data direct should support LDAP for oracle so that we could provide the URL as shown below.
We too have customers requesting this feature. They indicate with Oracle's thin jdbc driver, they can point their jdbc url to ldap, which houses the db endpoint info. I believe it is documented by Oracle here:
They're looking for same capability from Progress DD cjdbc driver for Oracle.
My Progress case # was 00326271.
Our company is looking at ldap connect strings as a standard jdbc connection, so this is an important feature for us