Question

我想实现一个接口和存储库模式。我的不同存储库可以有类型数据类型，

第一个是（String-int，char-long）

第二个是（Char-double，double-string）。模式不断发展，我们有大约50种不同的方法。我们正在将接口/存储库更改为另一个数据库系统等。

如何编辑下面的编辑界面，以允许不同的数据类型？谢谢，

public interface ITransactionRepository
{
    void SearchTransactionbyCategoryCustomerId(Category, CustomerId ); // what should I write here?
    void SearchTransactionbyProductDepartment(Product, Department); 
    ......
}


public class TransactionRepository1: IRepository
{
    void SearchTransactionbyCategoryCustomerId(string Category, int CustomerId);
    void SearchTransactionbyProductDepartment(char Product, long Department); 
    ......
}

public class TransactionRepository2: IRepository
{
    void SearchTransactionbyCategoryCustomerId(char Category, double CustomerId);
    void SearchTransactionbyProductDepartment(double Product, string Department); 
    ......
}

Answer 1

将您的界面定义为通用，并在实现中指定实际类型，

public interface ITransactionRepository<TCategory, TCustomerId, TProduct, TDepartment>
{
    void SearchTransactionbyCategoryCustomerId(TCategory Category, TCustomerId CustomerId );
    void SearchTransactionbyProductDepartment(TProduct Product, TDepartment Department); 
    ......
}


public class TransactionRepository1: ITransactionRepository<string, int, char, long>
{
    void SearchTransactionbyCategoryCustomerId(string Category, int CustomerId);
    void SearchTransactionbyProductDepartment(char Product, long Department); 
    ......
}

public class TransactionRepository2: ITransactionRepository<char, double, double, string>
{
    void SearchTransactionbyCategoryCustomerId(char Category, double CustomerId);
    void SearchTransactionbyProductDepartment(double Product, string Department); 
    ......
}

C＃接口存储库方法中的不同变量类型

1 个答案: