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/********************************************************

** Copyright 2000 Earth Resource Mapping Ltd.

** This document contains proprietary source code of

** Earth Resource Mapping Ltd, and can only be used under

** one of the three licenses as described in the 

** license.txt file supplied with this distribution. 

** See separate license.txt file for license details 

** and conditions.

**

** This software is covered by US patent #6,442,298,

** #6,102,897 and #6,633,688.  Rights to use these patents 

** is included in the license agreements.

**

** FILE:           NCSUtil\CNCSMetabaseEdit.h

** CREATED:        10Apr00

** AUTHOR:         Nicholas Yue

** PURPOSE:        Metabase manipulation routines

** EDITS:

** [01] 11Jul00  ny        Added boolean field to indicate if CoInitialize()

**                                        has been called

(( [02] 14Jul01 sjc Added static mutex

 *******************************************************/

#ifndef CNCSMETABASEEDIT_H

#define CNCSMETABASEEDIT_H

#include <windows.h>

#include <iadmw.h>

#include "NCSDefs.h"

#include "NCSMutex.h"

class NCS_EXPORT CNCSMetabaseEdit {

public :

  CNCSMetabaseEdit();

  ~CNCSMetabaseEdit();

  HRESULT open(char *pathName,

               DWORD permission,

               DWORD timeout = 5000);

  HRESULT close();

  HRESULT save();

  HRESULT get(char *dataName,

              METADATA_RECORD *MDRecord,

              DWORD *MDRecordLen);

  HRESULT set(char *dataName,

              METADATA_RECORD *MDRecord);

  HRESULT add(char *keyName);

  HRESULT Delete(char *keyName);

protected :

private :

  char _szPath[1024];

  char _szData[256];

  IMSAdminBase *pIABase;

  METADATA_HANDLE metaHandle;

  bool _isOpen;

  bool _isInit;

  static CNCSMutex sm_Mutex;        //[02]

};

#endif