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-- File:	PDF.cdl
--      	-------
-- Author:	DAUTRY Philippe
--		<fid@fox.paris1.matra-dtv.fr>
---Copyright:	 MATRA DATAVISION 1997

---Version:	0.0
---History:	Version	Date		Purpose
--		0.0	Mar 13 1997	Creation


package PDF 

	---Purpose: This pakage is the persistent equivalent of
	--          TDF. It describes persistent classes used to store
	--          a TDF structure into a Database.


uses

    Standard,
    PCollection,
    PColStd

is

    class Data;
    
    
    deferred class Attribute;

    class TagSource; 

    class Reference;

    -- Instantiations ---------------------------------------------------

    class HAttributeArray1 from PDF instantiates HArray1 from PCollection
    	(Attribute from PDF);

end PDF;