-- File:	BinMDF.cdl
-- Created:	Tue Oct 29 18:50:21 2002
-- Author:	Michael SAZONOV
--		<msv@novgorox.nnov.matra-dtv.fr>
---Copyright:	 Matra Datavision 2002

package BinMDF

        ---Purpose: This package provides classes and methods to
        --          translate a transient DF into a persistent one and
        --          vice versa.
        --          
        --          Driver
        --          
        --          A driver is a tool used to translate a transient
        --          attribute into a persistent one and vice versa.
        --          
        --          Driver Table
        --          
        --          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.

uses
    TCollection,
    TColStd,
    TDF,
    CDM,
    BinObjMgt

is

    deferred class ADriver; -- Attribute Storage/Retrieve Driver.

    class ReferenceDriver;  -- Driver for reference

    class TagSourceDriver;  -- Driver for TDF_TagSource

    private alias StringIdMap is DataMapOfAsciiStringInteger from TColStd;

    -- Map (Type, ADriver)
    class TypeADriverMap instantiates DataMap from TCollection
        (Type from Standard,
         ADriver from BinMDF,
         MapTransientHasher from TColStd);

    -- Double Map (Type, Integer ID)
    class TypeIdMap instantiates DoubleMap from TCollection
        (Type from Standard,
         Integer from Standard,
         MapTransientHasher from TColStd,
         MapIntegerHasher from TColStd);

    -- Attribute Storage Driver Table.
    class ADriverTable;

    AddDrivers (aDriverTable : ADriverTable  from BinMDF;
                aMsgDrv      : MessageDriver from CDM);
        ---Purpose: Adds the attribute storage drivers to <aDriverTable>.

end BinMDF;