如何在CoreData中存储typedef枚举

typedef NS_ENUM(NSInteger, MyEnum) {
    MyEnumValue1,
    MyEnumValue2,
    MyEnumValue3
};

@property (nonatomic) MyEnum myEnumValue;

- (NSString *)myEnumValueToString {
    switch (self.myEnumValue) {
        case MyEnumValue1:
            return @"Value 1";
        case MyEnumValue2:
            return @"Value 2";
        case MyEnumValue3:
            return @"Value 3";
        default:
            return @"";
    }
}

- (void)setMyEnumValueFromString:(NSString *)stringValue {
    if ([stringValue isEqualToString:@"Value 1"]) {
        self.myEnumValue = MyEnumValue1;
    } else if ([stringValue isEqualToString:@"Value 2"]) {
        self.myEnumValue = MyEnumValue2;
    } else if ([stringValue isEqualToString:@"Value 3"]) {
        self.myEnumValue = MyEnumValue3;
    } else {
        self.myEnumValue = MyEnumValue1; // 设置默认值
    }
}

MyEnum enumValue = myManagedObject.myEnumValue;
NSString *stringValue = [myManagedObject myEnumValueToString];
[myManagedObject setMyEnumValueFromString:@"Value 2"];