prj/cam/src/object/relnull.h

   1 /*
   2 @Copyright Looking Glass Studios, Inc.
   3 1996,1997,1998,1999,2000 Unpublished Work.
   4 */
   5
   6 // $Header: r:/t2repos/thief2/src/object/relnull.h,v 1.4 2000/01/29 13:24:55 adurant Exp $
   7 #pragma once
   8
   9 #ifndef __RELNULL_H
  10 #define __RELNULL_H
  11 #include <relation.h>
  12
  13 /////////////////////////////////////////////////////////////
  14 // THE NULL RELATION
  15 //
  16 // Contains no links.
  17 //
  18
  19 class cNullRelation : public IRelation
  20 {
  21 public:
  22    DECLARE_UNAGGREGATABLE();
  23
  24    STDMETHOD_(const sRelationDesc*, Describe)() const;
  25    STDMETHOD_(RelationID,GetID)() const;
  26    STDMETHOD(SetID)(RelationID ) ;
  27
  28    STDMETHOD_(const sRelationDataDesc*, DescribeData)() const;
  29    STDMETHOD_(IRelation*, Inverse)();
  30    STDMETHOD_(LinkID, Add)(ObjID source, ObjID dest);
  31    STDMETHOD_(LinkID, AddFull)(ObjID source, ObjID desc, void* data);
  32    STDMETHOD(Remove)(LinkID id);
  33    STDMETHOD_(BOOL,Get)(LinkID id, sLink* out) const;
  34    STDMETHOD(SetData)(LinkID id, void* data);
  35    STDMETHOD_(void*,GetData)(LinkID id);
  36    STDMETHOD_(ILinkQuery*,Query)(ObjID source, ObjID dest) const;
  37    STDMETHOD(Notify)(eRelationNotifyMsg msg, RelationNotifyData data);
  38    STDMETHOD(Listen)(RelationListenMsgSet interests, RelationListenFunc func, RelationListenerData data);
  39    STDMETHOD_(LinkID, GetSingleLink)(ObjID source, ObjID dest);
  40    STDMETHOD_(BOOL, AnyLinks)(ObjID source, ObjID dest);
  41
  42 };
  43
  44 #endif // __RELNULL_H