构造者模式

可以解决什么问题

可以一定程度上保证原子性，原理是在中间加了一层，相比之前一个一个set可以防止在set过程中被其他线程拿去使用，但是这时候它并不是完整的所有会存在问题。

代码

package io.quarkiverse.seata.design;

import cn.hutool.core.collection.CollectionUtil;

import java.util.*;
import java.util.stream.Collectors;

public class ChainNode{
    private List<Tuple<Object,Object>> params;

    ChainNode(List<Tuple<Object,Object>> params){

        this.params  = params;
    }


    public List<Tuple<Object,Object>> getParams(){
        return this.params;
    }

    public static ChainNode.ChainNodeBuilder builder(){
        return new ChainNode.ChainNodeBuilder();
    }
    public static class ChainNodeBuilder{
        private List<Tuple<Object,Object>> params;

        public ChainNode.ChainNodeBuilder params(Tuple<Object,Object>... params){
            return params != null && params.length>0 ? this.params(
            	(Arrays.stream(params)·
            	.collect(Collectors.toList())
            	)
            	):this;
        }

        public ChainNode.ChainNodeBuilder params(Collection<Tuple<Object,Object>> params){
            if (params != null && params.size()>0){
                this.params = params.stream().filter(Objects::nonNull).collect(Collectors.toList());
            }
            return this;
        }
        ChainNodeBuilder(){}


        public ChainNode build(){
            return new ChainNode(this.params);
        }
    }
}