src/TDocStd/TDocStd_CompoundDelta.cdl


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-- File:	TDocStd_CompoundDelta.cdl
-- Author:	Sergey RUIN
---Copyright:	 MATRA DATAVISION 2001


class CompoundDelta from TDocStd inherits Delta from TDF

	---Purpose: A delta set is available at <aSourceTime>. If
	--          applied, it restores the TDF_Data in the state it
	--          was at <aTargetTime>.

uses

    OStream from Standard

is


    Create;
	---Purpose: Creates a compound delta.

--    SetValidTime(me : mutable;  aBeginTime, anEndTime : Integer from Standard) is private;
    ---Purpose: Validates <me> at <aBeginTime>. If applied, it
    --          restores the TDF_Data in the state it was at
    --          <anEndTime>. Reserved to TDF_Data.
    
--    AppendAttributeDelta(me : mutable; anAttributeDelta : AttributeDelta from TDF) is private;
    
friends

    class Document from TDocStd

end Delta;