The Builder design pattern is a creational design pattern that lets us create an object one step at a time. It is quite common to use this pattern when creating a complex object. By using this pattern, we can create different parts of an object, step by step, and then connect all the ...
你还可以使用像Email EmailBuilder::build() {...}这样的显式操作,而不是转换运算符。 通过建设者 Builder Pattern 提供的一个很棒的功能是能够**使用多个 actor 一起构建一个对象。**这是通过将构建器传递给其他 actor 来完成的,每个 actor 都会向构建的对象提供更多信息。当你构建某种查询,添加...
modelBuilder.Entity<Course>() .HasRequired(c => c.Department) .WithMany(t => t.Courses) .Map(m => m.MapKey("ChangedDepartmentID")); 設定未遵循程式代碼第一慣例的外鍵名稱 如果Course 類別上的外鍵屬性稱為 SomeDepartmentID,而不是 DepartmentID,您必須執行下列動作,以指定您希望 SomeDepartmentID ...
modelBuilder.Entity<Department>() .Property(t => t.Name) .HasColumnName("DepartmentName"); 重新命名模型中未定義的外鍵 如果您選擇不要在 CLR 類型上定義外鍵,但想要指定它在資料庫中應該擁有的名稱,請執行下列動作: C# modelBuilder.Entity<Course>() .HasRequired(c => c.Department) .WithMany(t =...
modelBuilder.Entity<Department>() .Property(t => t.Name) .HasColumnName("DepartmentName"); 重命名未在模型中定义的外键 如果选择不在 CLR 类型上定义外键,但想要指定它在数据库中应具有的名称,请执行以下操作: C# modelBuilder.Entity<Course>() .HasRequired(c => c.Department) .WithMany(t => t....
modelBuilder.Entity<Course>() .HasRequired(c => c.Department) .WithMany(t => t.Courses) .Map(m => m.MapKey("ChangedDepartmentID")); 配置不遵循 Code First 约定的外键名称 如果Course 类上外键属性的名称为 SomeDepartmentID 而不是 DepartmentID,你需要执行以下命令,以指定你希望将 SomeDepartment...
fluentTQL is implemented as a standard Java library using the builder pattern to allow method chaining as user interface. All queries need to be implemented within a class that implements the interface FluentTQLSpecification. Using the Java classloader the classes are located and the queries ...
modelBuilder.Entity<Course>() .HasRequired(c=>c.Department) .WithMany(t=>t.Courses) .Map(m=> m.MapKey("ChangedDepartmentID")); 配置字符串属性是否支持 Unicode 内容 默认情况下,字符串为 Unicode(SQL Server 中的 nvarchar)。您可以使用 IsUnicode 方法指定字符串应为 varchar 类型。
csharp tdd message-bus pipelines event-sourcing pipeline-framework fluent-interface dotnet-core event-driven event-handlers chain-methods chain-of-responsibility mediator-pattern fluent-design craftmanship ddd-cqrs Updated Feb 4, 2020 C# mvallim / java-fluent-validator Star 164 Code Issues Pull requ...
Understanding Builder Design Pattern Rasul Huseynov Aug 01 LINQ Query Syntax vs Method Syntax in Entity Framework Jitendra Mesavaniya May 29 Table Splitting in Entity Framework 6 (Code First Approach) Jignesh Trivedi May 17 CRUD Operations Using Entity Framework 5.0 Code First Approach in MVC ...