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VersionSelector Class Reference

Version selectors provide the mechanism for comparing two Use objects and decide which one has to be kept WRT their version id . More...

Inheritance diagram for VersionSelector

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Public Methods

virtual Use* operate (Use* ref_use, Use* new_use)

Static Public Methods

VersionSelector& instance ()

Detailed Description

Version selectors provide the mechanism for comparing two Use objects and decide which one has to be kept WRT their version id .

Each strategy is implemented as a separate class (which overrides the operate method)

Definition at line 97 of file cmt_use.cxx.

Member Function Documentation

VersionSelector & VersionSelector::instance ( ) [static]
 

Definition at line 2318 of file cmt_use.cxx.

Referenced by Use::add().

02319 {
02320   static BestFitSelector best_fit;
02321   static BestFitNoCheckSelector best_fit_no_check;
02322   static FirstChoiceSelector first_choice;
02323   static LastChoiceSelector last_choice;
02324   static KeepAllSelector keep_all;
02325 
02326   switch (Cmt::get_current_strategy ())
02327     {
02328     case BestFit:
02329       return (best_fit);
02330     case BestFitNoCheck:
02331       return (best_fit_no_check);
02332     case FirstChoice:
02333       return (first_choice);
02334     case LastChoice:
02335       return (last_choice);
02336     case KeepAll:
02337       return (keep_all);
02338     default:
02339       return (best_fit);
02340     }
02341 }

Use * VersionSelector::operate ( Use * ref_use,
Use * new_use ) [inline, virtual]
 

Reimplemented in BestFitSelector, BestFitNoCheckSelector, FirstChoiceSelector, LastChoiceSelector, and KeepAllSelector.

Definition at line 102 of file cmt_use.cxx.

Referenced by Use::add().

00103   {
00104     return (ref_use);
00105   }

The documentation for this class was generated from the following file:
Generated at Mon Jun 10 17:58:58 2002 for CMT by doxygen1.2.3 written by Dimitri van Heesch, © 1997-2000