xbtblmgr.h

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/*  xbtblmgr.h
 
XBase64 Software Library
 
Copyright (c) 1997,2003,2014,2022 Gary A Kunkel
 
The xb64 software library is covered under the terms of the GPL Version 3, 2007 license.
 
Email Contact:
 
    XDB-devel@lists.sourceforge.net
    XDB-users@lists.sourceforge.net
 
This class manages a list of open tables, open indices are connected to the open tables
 
*/
 
 
#ifndef __XB_XBMGR_H__
#define __XB_XBMGR_H__
 
#ifdef  CMAKE_COMPILER_IS_GNUCC
#pragma interface
#endif
 
namespace xb{
 
class XBDLLEXPORT xbDbf;
 
/* this structure is a linked list of open tables */
struct XBDLLEXPORT xbTblList{
  xbTblList *pNext;
  xbString  *psTblName;            /* Name of table - same table can be opened multiple times, but must have unique alias */
  xbString  *psTblAlias;           /* TblAliasName must be unique */
  xbDbf     *pDbf;
};
 
class XBDLLEXPORT xbTblMgr : public xbSsv {
 public:
  xbTblMgr();
  ~xbTblMgr();
  xbInt16     AddTblToTblList        ( xbDbf *d, const xbString &sTblName );
  xbInt16     AddTblToTblList        ( xbDbf *d, const xbString &sTblName, const xbString &sTblAlias );
  xbInt16     DisplayTableList       () const;
  xbDbf *     GetDbfPtr              ( const xbString &sTblAlias ) const;
  xbDbf *     GetDbfPtr              ( xbInt16 sItemNo ) const;
  xbTblList * GetTblListEntry        ( xbDbf *d );
  xbInt16     GetOpenTableCount      () const;
  xbInt16     RemoveTblFromTblList   ( const xbString &sTblAlias );
  xbInt16     RemoveTblFromTblList   ( xbDbf *d );
 
 protected:
 
 private:
  xbTblList  * TblList;          // List of open database tables
  xbInt16    iOpenTableCount;    // Number of open tables
 
};
 
}        /* namespace xb   */
 
#endif   /* __XB_XBMGR_H__ */