import com.sleepycat.db.*;public int get_type();
The Db.get_type method returns the type of the underlying access method (and file format). It returns one of Db.DB_BTREE, Db.DB_HASH or Db.DB_RECNO. This value may be used to determine the type of the database after a return from Db.open with the type argument set to DB_UNKNOWN.