链接模式2

设计模式的意义在于：面向业务内容、业务数据结构和系统架构，高内聚低耦合、优雅的将平面逻辑立体化。

package designPattern;
/**
 * 链接模式2，功能全面
 * @author Administrator
 */
public class A9_ChainTest2  {
    public static void main(String[] args) {
        Manager aManager = new Manager();
        ProjectManager1 aPM = new ProjectManager1();
        Programmer1 aProgrammer1 = new Programmer1();
        QA aQA = new QA();
        Others others = new Others();

        aManager.addChain(aPM);
        aPM.addChain(aProgrammer1);
        aProgrammer1.addChain(aQA);
        aQA.addChain(others);

        aManager.sendToChain("Get");
        aManager.sendToChain("Design");
        aManager.sendToChain("Coding");
        aManager.sendToChain("Test");
        aManager.sendToChain("Kill La Deng !");
    }
}
interface Chain  {
    public abstract void addChain(Chain c);
    public abstract void sendToChain(String mesg);
    public abstract Chain getChain();
}
class Manager implements Chain {
    private Chain nextChain = null;
    private String responsibility = "Get Project";;

    public Manager() { }

    public void addChain(Chain c) {
        nextChain = c;
    }

    public Chain getChain() {
        return nextChain;
    }

    public void sendToChain(String mesg) {
        if(mesg.equals(responsibility)) {
            System.out.println("A manager  -->  Get a Project");
        } else {
            if(nextChain != null) {
                nextChain.sendToChain(mesg);
            }
        }
    }  
}
class Others implements Chain {
    private Chain nextChain = null;
    
    public Others() {
    }
    public void addChain(Chain c) {
        nextChain = c;
    }
    
    public Chain getChain() {
        return nextChain;
    }
    
    public void sendToChain(String mesg) {
            System.out.println("No one can handle -->  " + mesg);
    } 
}
class Programmer1 implements Chain {
    private Chain nextChain = null;
    private String responsibility = "Coding";
    
    public Programmer1() {
    }
    public void addChain(Chain c) {
        nextChain = c;
    }
    
    public Chain getChain() {
        return nextChain;
    }
    
    public void sendToChain(String mesg) {
        if(mesg.equals(responsibility)) {
            System.out.println("A Programmer1  -->  Coding");
        } else {
            if(nextChain != null) {
                nextChain.sendToChain(mesg);
            }
        }
    } 
}
class ProjectManager1 implements Chain {
    private Chain nextChain = null;
    private String responsibility = "Design";
    
    public ProjectManager1() {
    }
    public void addChain(Chain c) {
        nextChain = c;
    }
    
    public Chain getChain() {
        return nextChain;
    }
    
    public void sendToChain(String mesg) {
        if(mesg.equals(responsibility)) {
            System.out.println("A PM  -->  Design");
        } else {
            if(nextChain != null) {
                nextChain.sendToChain(mesg);
            }
        }
    }  
}
class QA implements Chain {
    private Chain nextChain = null;
    private String responsibility = "Test";
    
    public QA() {
    }
    public void addChain(Chain c) {
        nextChain = c;
    }
    
    public Chain getChain() {
        return nextChain;
    }
    
    public void sendToChain(String mesg) {
        if(mesg.equals(responsibility)) {
            System.out.println("A QA  -->  Test");
        } else {
            if(nextChain != null) {
                nextChain.sendToChain(mesg);
            }
        }
    }
}

环境：JDK1.6，MAVEN，tomcat，eclipse

源码地址：http://files.cnblogs.com/files/xiluhua/designPattern.rar

欢迎亲们评论指教。