Mega Code Archive
Chain of Responsibility Pattern
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using System;
public abstract class Chain {
protected Chain theNextInChain;
public abstract void DealWithRequirement(string requirement);
public void NextInChain(Chain next) {
this.theNextInChain = next;
}
}
public class Employee : Chain {
public override void DealWithRequirement(string requirement) {
switch (requirement) {
case "Job":
Console.WriteLine("{0} Staff", this);
break;
default:
if (theNextInChain != null)
theNextInChain.DealWithRequirement(requirement);
break;
}
}
}
public class Manager : Chain {
public override void DealWithRequirement(string requirement) {
switch (requirement) {
case "Manager":
Console.WriteLine("{0} requirement.", this);
break;
default:
if (theNextInChain != null)
theNextInChain.DealWithRequirement(requirement);
break;
}
}
}
public class Senior : Chain {
public override void DealWithRequirement(string requirement) {
switch (requirement) {
default: Console.WriteLine("{0} has managed the " + requirement + " requirement.", this);
break;
}
}
public Senior() { ;}
}
class Client {
static void Main(string[] args) {
Chain staff = new Employee();
Chain manager = new Manager();
Chain seniorManager = new Senior();
staff.NextInChain(manager);
manager.NextInChain(seniorManager);
staff.DealWithRequirement("Corporates");
staff.DealWithRequirement("Job");
staff.DealWithRequirement("Manager");
staff.DealWithRequirement("Agency");
}
}
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