ThreadLocal上下文模式应用_threadcontext.threadcontextlocal()

ActionContext

package com.lastinglate.concurrent.chapter11;

public final class ActionContext {
   

    private static final ThreadLocal<Context> threadLocal = new ThreadLocal<Context>() {
   
        @Override
        protected Context initialValue() {
   
            return new Context();
        }
    };

    private static class ContextHolder {
   
        private final static ActionContext actionContext = new ActionContext();
    }

    public static ActionContext getActionContext() {
   
        return ContextHolder.actionContext;
    }

    public Context getContext() {
   
        return threadLocal.get();
    }

    private ActionContext(){
   

    }
}
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