Question

我有两个班级：


    Public Class Subscribing

    Private _subscribingObjects As IList(Of String)

    Public Sub Add(ByVal obj As SubscribeObject)
        '...code...'
    End Sub

    Public Sub Remove(ByVal index As Integer)
        '...code...'
    End Sub

    End Class


    Public Class Providing

    Private _providingObjects As IList(Of String)

    Public Sub Add(ByVal obj As ProvideObject)
        '...code...'
    End Sub

    Public Sub Remove(ByVal index As Integer)
        '...code...'
    End Sub

    End Class

有更优雅的方式来添加吗？一个类就足够了，但由于Add方法有不同的参数，所以一个真的不行。

任何帮助都将不胜感激。

Answer 1

此？

Public Class SubscribingProviding(Of t)

Private _subscribingObjects As IList(Of String)

Public Sub Add(ByVal obj As t)
    '...code...'
End Sub

Public Sub Remove(ByVal index As Integer)
    '...code...'
End Sub

End Class

Answer 2

你的添加功能应该没问题。只要传入不同的变量类型，就可以使函数名相同。您的删除子类将不允许在同一个类中，因为它使用相同的参数Integer。

Answer 3

呃..可能不是。它们不同，甚至无法与它们接口。

Answer 4

我个人不会在一个班级中混合（订阅和提供）两个职责。只需继承List（Of T）

，就可以轻松简化类本身

Public Class Subscribing
    Inherits List(Of SubscribeObject)
End Class

Public Class Providing
    Inherits List(Of ProvideObject)
End Class

如果你真的想要进入一个类并确保它只能分别接受 SubscribeObject 和 ProvideObject ，那么在 SubscribeObject中实现一个公共接口和 ProvideObject 。然后创建一个接受接口的泛型类：

' Common interface '
Public Interface ISubscribeProvideObject
End Interface

' SubscribeObject and ProvideObject both implementing the common interface '
Public Class SubscribeObject
    Implements ISubscribeProvideObject
    '...'
End Class

Public Class ProvideObject
    Implements ISubscribeProvideObject
    '...'
End Class

' Generic class accepting both types '
Public Class SubscribingProviding(Of T As ISubscribeProvideObject)
    Inherits List(Of T)
    '... Add() and Remove() methods only needed if custom logic applies ...'
End Class

具有不同签名的类似类

4 个答案: