-- File:	Standard_Storable.cdl
-- Created:	Thu Sep  5 16:41:43 1991
-- Author:	jean pierre TIRAULT
--		<jpt@topsn1>
---Copyright:	 Matra Datavision 1991

deferred class Storable from Standard

   ---Purpose: This class Storable is an abstract class that allows built-in 
   --          primitive types to be extended. They are not themselves 
   --          persistent, but are known by the database, therefore can be used
   --         to define the internal representation of persistent objects.
   --         Otherwise, all the fields of subclasses of Object MUST inherit
   --         from Storable.
   --         
   --         This class provides also a framework for copying, comparing and 
   --         printing.

is    
        Delete ( me : out ) is virtual;
        ---C++: alias "Standard_EXPORT virtual ~Standard_Storable(){Delete();}"

	HashCode (me; Upper : Integer ) returns Integer is virtual;
	    ---Purpose: Returns a hashed value denoting <me>. This value is in
	    --         the range 1..<Upper>.
	    ---C++:  function call
            ---Level: Advanced
            
	IsEqual (me; Other : Storable) returns Boolean
	    ---Purpose: Returns true if the direct contents of <me> and
	    --         <Other> are memberwise equal.
	    ---C++:  alias operator ==
	    ---Level: Public 
        is static;

	IsSimilar (me; Other : Storable) returns Boolean;
	    ---Purpose: Returns true if the Deep contents of <me> and
	    --         <Other> are memberwise equal.
	    ---C++:  function call
            ---Level: Public
            
	ShallowDump (me; S: in out OStream) is virtual;
	    ---Purpose: Prints the contents at the first level of <me> on
	    --         the stream <s>. The Root version of ShallowDump prints
	    --         the name of the class <me> is instance of, followed by 
	    --         its memory address.
	    ---C++:  function call
            ---Level: Public

end Storable;