include/wvmonikerregistry.h

   1 /* -*- Mode: C++ -*-
   2  * Worldvisions Weaver Software:
   3  *   Copyright (C) 1997-2002 Net Integration Technologies, Inc.
   4  *
   5  * Support for moniker registries.  See wvmoniker.h.
   6  */
   7 #ifndef __WVMONIKERREGISTRY_H
   8 #define __WVMONIKERREGISTRY_H
   9
  10 #include "wvmoniker.h"
  11 #include "wvlinklist.h"
  12
  13 /**
  14  * A list for holding moniker-prefix to factory-function mappings.
  15  *
  16  * This is used by WvMoniker and wvcreate().  See those for details.
  17  */
  18 class WvMonikerRegistry //: public GenericComponent<IObject>
  19 {
  20     struct Registration
  21     {
  22         WvString id;
  23         WvMonikerCreateFunc *func;
  24
  25         Registration(WvStringParm _id, WvMonikerCreateFunc *_func)
  26             : id(_id), func(_func)
  27             { }
  28     };
  29
  30     DeclareWvList(Registration);
  31
  32     unsigned refcount;
  33
  34 public:
  35     UUID reg_iid;
  36     RegistrationList list;
  37
  38     WvMonikerRegistry(const UUID &iid);
  39     virtual ~WvMonikerRegistry();
  40
  41     virtual void add(WvStringParm id, WvMonikerCreateFunc *func,
  42                         const bool override = false);
  43     virtual void del(WvStringParm id);
  44
  45     virtual void *create(WvStringParm _s, IObject *_obj);
  46
  47     // find a registry for objects of the given interface UUID
  48     static WvMonikerRegistry *find_reg(const UUID &iid);
  49
  50     // IObject stuff
  51     virtual IObject *getInterface(const UUID &uuid);
  52
  53     // we can't use GenericComponent's implementation, since we have to
  54     // unregister ourselves on the second-last release().
  55     virtual unsigned int addRef();
  56     virtual unsigned int release();
  57 };
  58
  59
  60 #endif // __WVMONIKERREGISTRY_H