廠通過線路發送XML字符串

Question

什麼我會在代碼解釋...
但它的JIST是我想讀的子類在XML中堅持：

abstract class Parent { 
    virtual string ToXml() 
    { 
     XmlSerializer xml = XmlSerializer(typeof (this)); 
     ... 
     return xmlString; 
    } 

    virtual void FromXml(string rawXml) 
    { 
     //either memberwise copy or throw exception if wrong type 
     ... 
    } 
} 

sealed class Child1 : Parent 
{ 
    [XmlElement("Prop1")] 
    public Property1 { get; set; } 

    public Child1() { } 
} 

sealed class Child2 : Parent 
{ 
    [XmlElement("Prop2")] 
    public Property1 { get; set; } 

    public Child2() { } 
} 

static void main() 
{ 
    string flatChild1 = new Child1().ToXml(); 
    string flatChild2 = new Child2().ToXml(); 

    // some time goes by 
    ... 

    Child1 one = new Child1(); 
    Child2 two = new Child2(); 

    one.FromXml(flatChild1); //must be "child one" string or exception 
    two.FromXml(flatChild2); 

    //one.FromXml(flatChild2); !! invalid 

    /* 
     what i want is some sort of factory... 

     sealed class MyFactory 
     { 
     static Parent MyFactory.FromXml(string xmlObject); 
     } 

    */ 
    Parent obj1 = MyFactory.FromXml(flatChild1); 
    Parent obj2 = MyFactory.FromXml(flatChild2); 

    Assert.IsInstanceOfType(obj1, Child1.GetType()); 
    Assert.IsInstanceOfType(obj2, Child2.GetType()); 
} 

* *編輯**

我想發送XML通過線路，所以是這樣的：

// Server.exe Project 
server_SendChild1Message() 
{ 
    byte[] data = Encoding.UTF16.GetBytes(child1.ToXml()); 
    server.tcpClient[0].write(data, 0, data.Length); 
} 

// Seperate Client.exe 
client_ReadMessages() 
{ 
    string s = getNextXmlMessage(); 
    //needs to create a Child1 or Child2 based on xml string 
    BaseXmlObj b = Factory.objFromXml(s); 
} 

Answer 1

泛型。這是否適用於你想要做的事情？

如果您試圖避免指定要反序列化的對象的類型，則不能;它決定了用於反序列化對象的代碼。

abstract class Parent<T> where T : Parent<T> { 
    virtual string ToXml() 
    { 
     XmlSerializer xml = XmlSerializer(typeof (T)); 
     ... 
     return xmlString; 
    } 

    virtual void FromXml(string rawXml) 
    { 
     //either memberwise copy or throw exception if wrong type 
     ... 
    } 
} 

sealed class Child1 : Parent<Child1> 
{ 
    [XmlElement("Prop1")] 
    public Property1 { get; set; } 

    public Child1() { } 
} 

sealed class Child2 : Parent<Child1> 
{ 
    [XmlElement("Prop2")] 
    public Property1 { get; set; } 

    public Child2() { } 
} 

static void main() 
{ 
    string flatChild1 = new Child1().ToXml(); 
    string flatChild2 = new Child2().ToXml(); 

    // some time goes by 
    ... 

    Child1 one = new Child1(); 
    Child2 two = new Child2(); 

    one.FromXml(flatChild1); //must be "child one" string or exception 
    two.FromXml(flatChild2); 

    //one.FromXml(flatChild2); !! invalid 

    /* 
     what i want is some sort of factory... 

     sealed class MyFactory<T> 
     { 
     static T MyFactory.FromXml(string xmlObject); 
     } 

    */ 
    Child1 obj1 = MyFactory<Child1>.FromXml(flatChild1); 
    Child2 obj2 = MyFactory<Child2>.FromXml(flatChild2); 

    Assert.IsInstanceOfType(obj1, Child1.GetType()); 
    Assert.IsInstanceOfType(obj2, Child2.GetType()); 
}