java:/MyPostgresDS PostgreSQL true false false false 300 false true foreign-key on-load DwarfEntityEJB ejb_dwarf dwarfId dwarf_id dwarfName dwarf_name born born MountainEntityEJB ejb_mountain mountainId mountain_id mountainName mountain_name location location Spouse dwarf-has-spouse spouse-of-dwarf dwarfId spouse_id Home dwarf-has-home home-of-dwarf mountainId home_id King mountain-has-king king-of-mountain dwarfId king_id