Sparkle.framework/Versions/A/Headers/SUVersionComparisonProtocol.h

   1 //
   2 //  SUVersionComparisonProtocol.h
   3 //  Sparkle
   4 //
   5 //  Created by Andy Matuschak on 12/21/07.
   6 //  Copyright 2007 Andy Matuschak. All rights reserved.
   7 //
   8
   9 #ifndef SUVERSIONCOMPARISONPROTOCOL_H
  10 #define SUVERSIONCOMPARISONPROTOCOL_H
  11
  12 #import <Cocoa/Cocoa.h>
  13
  14 /*!
  15     @protocol
  16     @abstract    Implement this protocol to provide version comparison facilities for Sparkle.
  17 */
  18 @protocol SUVersionComparison
  19
  20 /*!
  21     @method
  22     @abstract   An abstract method to compare two version strings.
  23     @discussion Should return NSOrderedAscending if b > a, NSOrderedDescending if b < a, and NSOrderedSame if they are equivalent.
  24 */
  25 - (NSComparisonResult)compareVersion:(NSString *)versionA toVersion:(NSString *)versionB;       // *** MAY BE CALLED ON NON-MAIN THREAD!
  26
  27 @end
  28
  29 #endif