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- // EONull.h
- // Copyright (c) 1994, NeXT Computer, Inc. All rights reserved.
-
- #import <foundation/NSArray.h>
- #import <foundation/NSData.h>
- #import <foundation/NSDictionary.h>
- #import <foundation/NSObject.h>
- #import <foundation/NSString.h>
-
-
- // The EONull class represents null values in the database server. You can
- // check whether any attribute value is null by comparing with the EONull
- // instance.
- //
- // if (myValue == [EONull null]) ...
-
-
- @interface EONull:NSObject <NSCopying>
-
- + (EONull *)null;
- // Returns a unique instance representing null values in the database
- // server.
-
- @end
-