What is the need for Chain of Responsibility Pattern in C# (C Sharp)?

class testClass {
public static void Main() {
receiver rObj1 = new derivedReceiver1();
receiver rObj2 = new derivedReceiver2();
receiver rObj3 = new derivedReceiver3();
rObj1.addToChain(rObj2);
rObj2.addToChain(rObj3);
int[] reqFromSender = {5, 20, 12, 40, 23, 60, 45, 34, 32};
foreach(int singleReq in reqFromSender) {
rObj1.processRequest(singleReq);
}
}
}
public class receiver {
protected receiver nextObjInChain;
public void addToChain(receiver rObj) {
nextObjInChain = rObj;
}
public virtual void processRequest(int reqData) {
//Have a computational logic to decide whether the request can be processed.
//You can also pass the request to the next object in the chain as shown below:
if(nextObjInChain != null) {
nextObjInChain.procesRequest(reqData);
}
}
}

In the above shown code, the processRequest method of receiver class passes the request to the next object in the chain. You can define derivedReceiver1, derivedReceiver2 and derivedReceiver3 classes which are all derived from receiver class. In these classes, you can override processRequest method to add conditions which when evaluated to true, the request can be processed. If not, the request can be moved to the next object in chain.

_______________________________________________________________________

FREE Subscription

Subscribe to our mailing list and receive new articles
through email. Keep yourself updated with latest
developments in the industry.

Name:
Email:

Note : We never rent, trade, or sell my email lists to
anyone. We assure that your privacy is respected
and protected.

Visit .NET Programming Tutorial Homepage

______________________________________________________

Recommended Resource

| What is the need for Bridge Pattern in C#? | What is the need for Builder Pattern in C#? | What is the need for Chain of Responsibility Pattern in C#? | What is the need for Command Pattern in C#? | What is the need for Composite Pattern in C#? | What is the need for Decorator Pattern in C#? | What is the need for Flyweight Pattern in C#? | What is the need for Interpreter Pattern in C#? | What is the need for Iterator Pattern in C#? | What is the need for Mediator Pattern in C#? | What is the need for Memento Pattern in C#? | What is the need for Prototype Pattern in C#? | What is the need for State Pattern in C#? | What is the need for Strategy Pattern in C#? | What is the need for Template Method Pattern in C#? | What is the need for unsafe code in C#? | What is the purpose of assert() in C#? | What is the purpose of AutoResetEvent in .NET? | What is the purpose of Console.ReadLine() in C#? | What is the purpose of machine.config file in .NET? |