在其他程序集中重用程序集

Reuse assembly in other assemblies

我正在尝试将台风集成到我的项目中。

我有三个 类,DBManager、ProductDataManager 和 CustomerDataManager。 ProductDataManager 和 CustomerDataManager 都依赖于 DBManager 进行数据库操作。

@interface ProductDataManager ()
@property (nonatomic, strong) DBManager *dbManager;
@end

@implementation ProductDataManager

- (instancetype)initWithDBManager:(DBManager*)dbManager
{
    self = [super init];
    if (self) {
        _dbManager = dbManager;
    }
    return self;
}


@interface CustomerDataManager ()
@property (nonatomic, strong) DBManager *dbManager;
@end

@implementation CustomerDataManager

- (instancetype)initWithDBManager:(DBManager*)dbManager
{
    self = [super init];
    if (self) {
        _dbManager = dbManager;
    }
    return self;
}

现在我为他们创建了三个程序集。

@interface DBManagerAssembly ()

@end

@implementation DBManagerAssembly

- (DBManager *)dbManager {
    return [TyphoonDefinition withClass:[DBManager class] configuration:^(TyphoonDefinition *definition) {
        }];
        definition.scope = TyphoonScopeSingleton;
    }];
}






@interface CustomerDataManagerAssembly ()
@property (nonatomic, strong) DBManagerAssembly *dbManagerAssembly;
@end

@implementation CustomerDataManagerAssembly

- (CustomerDataManager *)customerDataManager {
    return [TyphoonDefinition withClass:[CustomerDataManager class] configuration:^(TyphoonDefinition *definition) {
        [definition useInitializer:@selector(initWithDBManager:) parameters:^(TyphoonMethod *initializer) {
            [initializer injectParameterWith:self.dbManager];
        }];
    }];
}

- (DBManager *)dbManager {
    return [self.dbManagerAssembly dbManager];
}





@interface ProductDataManagerAssembly ()
@property (nonatomic, strong) DBManagerAssembly *dbManagerAssembly;
@end

@implementation ProductDataManagerAssembly

- (ProductDataManager *)productDataManager {
    return [TyphoonDefinition withClass:[ProductDataManager class] configuration:^(TyphoonDefinition *definition) {
        [definition useInitializer:@selector(initWithDBManager:) parameters:^(TyphoonMethod *initializer) {
            [initializer injectParameterWith:self.dbManager];
        }];
    }];
}

- (DBManager *)dbManager {
    return [self.dbManagerAssembly dbManager];
}

在 AppDelegate 中激活它们

- (NSArray *)initialAssemblies
{
    return @[[DBManagerAssembly class], [ProductDataManagerAssembly class], [CustomerDataManagerAssembly class]];
}

但是在应用程序启动时,它会抛出异常

[NSException raise:NSInvalidArgumentException format:@"Key '%@' is already registered.", _definition.key];

我的问题是...如何正确重用程序集并避免异常?

Typhoon 允许您在系统中创建关键架构参与者的逻辑分组。此功能称为 Assembly Modularization。定义的所有组件都进入一个 TyphoonComponentFactory - 其中包含用于发出构建实例的配方。

激活程序集 return 的定义之前。在运行时,您可以将程序集用作 return 构建实例的外观。它使用 Objective-C 消息转发来解析对 [factory componentForKey:theMethodName] 的方法调用。因此:

  • 整个组件集中的每个组件都必须具有唯一的名称。

在您的代码中,您定义了:

- (DBManager *)dbManager {
    return [self.dbManagerAssembly dbManager];
}

删除此定义,并编辑 customerDataManager 以改为:

[initializer injectParameterWith:[self.dbManagerAssembly dbManager]];

一切都会好的。