include/cosv/persist.hxx

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   9  * This file incorporates work covered by the following license notice:
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  15  *   License, Version 2.0 (the "License"); you may not use this file
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef CSV_PERSIST_HXX
  21 #define CSV_PERSIST_HXX
  22
  23
  24 // USED SERVICES
  25     // BASE CLASSES
  26     // COMPONENTS
  27 #include <cosv/string.hxx>
  28     // PARAMETERS
  29
  30
  31 namespace csv
  32 {
  33 namespace ploc
  34 {
  35
  36 class Path;
  37
  38
  39 inline const char *
  40 Delimiter()
  41 {
  42 #ifdef WNT
  43     return "\\";
  44 #elif defined(UNX)
  45     return "/";
  46 #else
  47 #error  For using csv::ploc there has to be defined: WNT or UNX.
  48 #endif
  49 }
  50
  51
  52
  53 class Persistent
  54 {
  55   public:
  56     virtual             ~Persistent() {}
  57
  58     const Path &        MyPath() const;
  59     /// @return all paths without completing delimiter, even directories.
  60     const char *        StrPath() const;
  61     bool                Exists() const;
  62
  63   protected:
  64                         Persistent();
  65     void                InvalidatePath();
  66
  67   private:
  68     virtual const Path &
  69                         inq_MyPath() const = 0;
  70     // DATA
  71     mutable StreamStr   sPath;
  72 };
  73
  74
  75
  76 // IMPLEMENTATION
  77
  78 inline
  79 Persistent::Persistent()
  80     :   sPath(30) { }
  81 inline const Path &
  82 Persistent::MyPath() const
  83     { return inq_MyPath(); }
  84 inline void
  85 Persistent::InvalidatePath()
  86     { sPath.clear(); }
  87
  88
  89
  90 }   // namespace csv
  91 }   // namespace ploc
  92
  93
  94 #endif
  95
  96
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */