objreg.h Source File

00001 /*
00002     Copyright (C) 2001 by Jorrit Tyberghein
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __IUTIL_OBJREG_H__
00020 #define __IUTIL_OBJREG_H__
00021 
00022 #include "csutil/scf.h"
00023 
00024 #define CS_QUERY_REGISTRY_TAG(Reg,Tag)                  \
00025   ((Reg)->Get (Tag))
00026 #define CS_QUERY_REGISTRY(Reg,Interface)                \
00027   (Interface*)((Reg)->Get (#Interface, iSCF::SCF->GetInterfaceID (#Interface), \
00028         VERSION_##Interface))
00029 #define CS_QUERY_REGISTRY_TAG_INTERFACE(Reg,Tag,Interface)              \
00030   (Interface*)((Reg)->Get (Tag, iSCF::SCF->GetInterfaceID (#Interface), \
00031         VERSION_##Interface))
00032 
00033 struct iObjectRegistryIterator;
00034 
00035 SCF_VERSION (iObjectRegistry, 0, 0, 4);
00036 
00040 struct iObjectRegistry : public iBase
00041 {
00045   virtual void Clear () = 0;
00046 
00059   virtual bool Register (iBase*, char const* tag = NULL) = 0;
00060 
00068   virtual void Unregister (iBase*, char const* tag = NULL) = 0;
00069 
00074   virtual iBase* Get (char const* tag) = 0;
00075 
00083   virtual iBase* Get (char const* tag, scfInterfaceID id, int version) = 0;
00084 
00088   virtual iObjectRegistryIterator* Get (scfInterfaceID id, int version) = 0;
00089 
00093   virtual iObjectRegistryIterator* Get () = 0;
00094 };
00095 
00096 SCF_VERSION (iObjectRegistryIterator, 0, 0, 1);
00097 
00102 struct iObjectRegistryIterator : public iBase
00103 {
00108   virtual bool Restart () = 0;
00109 
00113   virtual iBase* GetCurrent () = 0;
00114 
00118   virtual const char* GetCurrentTag () = 0;
00119 
00123   virtual bool Next () = 0;
00124 };
00125 
00126 #endif
00127