com.vip.vjtools.vjkit.concurrent.type

Class ThreadLocalContext

java.lang.Object

com.vip.vjtools.vjkit.concurrent.type.ThreadLocalContext

public class ThreadLocalContext
extends Object

存储于ThreadLocal的Map, 用于存储上下文.
但HashMap的存储其实较为低效，在高性能场景下可改为EnumMap
1.先定义枚举类，列举所有可能的Key
2.替换contextMap的创建语句，见下例
3.修改put()/get()中key的类型

 private static ThreadLocal> contextMap = new ThreadLocal>() {
        @Override
        protected Map initialValue() {
                return new EnumMap(MyEnum.class);
        }
 };
 

Constructor Summary

Constructors

Constructor and Description
ThreadLocalContext()

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T	get(String key) 取出ThreadLocal的上下文信息.
static void	put(String key, Object value) 放入ThreadLocal的上下文信息.
static void	reset() 清理ThreadLocal的Context内容.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ThreadLocalContext

public ThreadLocalContext()

Method Detail

put

public static void put(String key,
       Object value)

放入ThreadLocal的上下文信息.

get

public static <T> T get(String key)

取出ThreadLocal的上下文信息.

reset

public static void reset()

清理ThreadLocal的Context内容.