-- File:	Dynamic_Node.cdl
-- Created:	Mon Sep 19 11:18:30 1994
-- Author:	Gilles DEBARBOUILLE
--		<gde@watson>
---Copyright:	 Matra Datavision 1994


generic class Node from Dynamic (Item as Transient)

	---Purpose: This generic class    is a light  way  to  store a
	--          persistent   homogeneous  collection  of   objects
	--          inside another persistent object.

inherits

    TShared from MMgt
    

is

    Create returns mutable Node from Dynamic;
    
    ---Level: Advanced 
    
    ---Purpose: Returns an empty instance of this class.

    Create(anitem : any Item) returns mutable Node from Dynamic;
    
    ---Level: Advanced 
    
    ---Purpose: Returns an instance  of  this class  initialized  with
    --          <anitem> as object.

    Object(me : mutable ; anitem : any Item)
    
    ---Level: Advanced 
    
    ---Purpose: Sets to <me> the object <anitem>.
    
    is static;
    
    Object(me) returns any Item
    
    ---Level: Advanced 
    
    ---Purpose: Returns the object into <me>.
    
    is static;
    
    Next(me : mutable ; anode : Node from Dynamic)
    
    ---Level: Advanced 
    
    ---Purpose: Links to <me> the node <anode>.
    
    is static;
    
    Next(me) returns any Node from Dynamic
    
    ---Level: Advanced 
    
    ---Purpose: Returns the node linked to <me>.
    
    is static;
    
fields

    thenextnode : Node from Dynamic;
    theitem     : Item;

end Node;