Once the NME engine starts for the first time, all database
tables are created automatically. There are two types of tables:
-
NME Engine Tables. Definitions from nme-model.xml
are used to create the tables and columns. NMEInternal Columns provides
the description of internal database columns including their corresponding
names used in transition plans.
-
NME Unification Repository Tables. Structures are defined
by the Extended Unification step used in a match transformation
plan.
The type of NME persistent storage is defined in nme-config.xml
as a Persistence Layer.