Chain Of Responsibility(责任链模式)
public abstract class Base{
??//属性类型自定义
?protected Chain firChain;
?/**
? * chain操作
? */
?public abstract Object submit(Object obj);
}
?
public class BaseImpl extends Base{
?public BaseImpl () {
??super();
??// 初始化职责链
??firChain = new AChain();
??BChain bChain = new BChain();
??CChain cChain = new CChain();
??firChain.setNextChain(bChain );
??bChain .setNextChain(cChain );
?}
?public Result submit(Object obj) {
??Result result = new Result();
??firChain.sendToChain(obj, result );
??return result ;
?}
}
?
public abstract class Chain {
?protected Chain nextChain;// 下一个执行节点
?/**
? * 得到此节点的下一个执行节点
? *
? * @return
? */
?public Chain getNextChain() {
??return nextChain;
?}
?/**
? * 添加此节点的下一个执行节点
? *
? * @param c
? */
?public void setNextChain(Chain nextChain) {
??this.nextChain = nextChain;
?}
?/**
? * 执行内容
? */
?public abstract void sendToChain(Object obj,
???Result result);
}
?
?
public class AChain extends Chain {
?@Override
?public void sendToChain(Object obj, Result result) {
??? //具体操作
?
?? //最后
?? if (nextChain != null)
????nextChain.sendToChain(obj, result);
?}
}
BChain CChain 类似写法
