CoreData生成的访问器定义

Question

我需要在超类中使用这些访问器移动方法：

@interface CBComic (CoreDataGeneratedAccessors)

- (void)addCharactersObject:(CBCharacter *)value;
- (void)removeCharactersObject:(CBCharacter *)value;
- (void)addCharacters:(NSSet *)value;
- (void)removeCharacters:(NSSet *)value;

我已经将方法声明粘贴到我的超类，但是我得到一个警告，即超类中没有提供定义。

实施由Core Data提供，那么我该如何解决呢？ 感谢

Answer 1

@interface YourSuperClass : NSManagedObject

...

@end

@interface YourSuperClass (CoreDataGeneratedAccessors)

- (void)addCharactersObject:(CBCharacter *)value;
- (void)removeCharactersObject:(CBCharacter *)value;
- (void)addCharacters:(NSSet *)value;
- (void)removeCharacters:(NSSet *)value;

@end