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-- File: MDF_DriverTable.cdl
-- -------------------
-- Author: DAUTRY Philippe
-- <fid@fox.paris1.matra-dtv.fr>
---Copyright: MATRA DATAVISION 1997
---Version: 0.0
---History: Version Date Purpose
-- 0.0 May 6 1997 Creation
generic class DriverTable from MDF
(TheHDriver as Transient from Standard;
TheDriverHSeq as Transient from Standard;
TheTypeDriverMap as any)
inherits TShared from MMgt
---Purpose: A driver table is an object building links between
-- object types and object drivers. In the
-- translation process, a driver table is asked to
-- give a translation driver for each current object
-- to be translated.
--
-- Validity range of a driver: a driver is available
-- from its version number till the next upper
-- version number.
uses
Type from Standard,
MapTransientHasher from TColStd
-- raises
class DriverList instantiates List from TCollection
(TheHDriver);
class TypeDriverListMap instantiates DataMap from TCollection
(Type from Standard,
DriverList,
MapTransientHasher from TColStd);
is
Create returns mutable DriverTable from MDF;
---Purpose: Creates a mutable DriverTable from MDF.
SetDriver(me : mutable;
anHDriver : TheHDriver);
---Purpose: Sets a translation driver: <aDriver>.
SetDrivers(me : mutable;
aDriverHSeq : TheDriverHSeq);
---Purpose: Sets translation drivers.
GetDrivers(me : mutable;
aVersion : Integer from Standard = 0)
returns TheTypeDriverMap;
---Purpose: Gets a map of drivers available for <aVersion>.
--
-- If <aVersion> is not given or is null, the highest
-- version number driver is returned.
--
---C++: return const &
GetDriver(me;
aType : Type from Standard;
anHDriver : in out TheHDriver;
aVersion : Integer from Standard = 0)
returns Boolean from Standard;
---Purpose: Gets a driver <aDriver> according to <aType> and
-- <aVersion>.
--
-- If <aVersion> is not given or is null, the highest
-- version number driver is returned.
--
-- Returns True if a driver is found; false otherwise.
fields
myVersion : Integer from Standard;
myMap : TheTypeDriverMap; -- available for myVersion.
myMapOfLst : TypeDriverListMap;
end DriverTable;
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