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redis lua脚本与单个电话(redis lua script vs. single calls)

 我有以下设置：  
 
  2种不同的数据结构：集合，字符串  
  它们位于不同的名称空间*:collections:* ， *:resources:*  
  客户端不知道这一点，我每次尝试获取两个命名空间。  
  基于exists我决定最终得到哪个数据结构。  
  所有对redis的调用都是异步完成的（vert.x redis-mod）  
 
 现在我必须决定是以lua脚本还是单个命令执行此操作。  
 我提出的lua脚本：  
local path = KEYS[1]
local resourcesPrefix = ARGV[1]
local collectionsPrefix = ARGV[2]

if redis.call('exists',resourcesPrefix..path) == 1 then
    return redis.call('get',resourcesPrefix..path)
elseif redis.call('exists',collectionsPrefix..path) == 1 then
    return redis.call('smembers',collectionsPrefix..path)
else
    return "notFound"
end 
 
 单个电话或lua脚本有任何优缺点吗？ 

I have the following setup: 
 
 2 different datastructures: Sets, Strings 
 They are in different namespaces *:collections:*, *:resources:* 
 The client doesn't know about this and I try to get both namespaces every time. 
 Based on exists I decide which datastructure to get finally. 
 all calls to redis are done asynchronous (vert.x redis-mod) 
 
Now I have to decide if I execute this as lua script or as single commands. 
The lua script I came up with: 
local path = KEYS[1]
local resourcesPrefix = ARGV[1]
local collectionsPrefix = ARGV[2]

if redis.call('exists',resourcesPrefix..path) == 1 then
    return redis.call('get',resourcesPrefix..path)
elseif redis.call('exists',collectionsPrefix..path) == 1 then
    return redis.call('smembers',collectionsPrefix..path)
else
    return "notFound"
end 
 
Are there any pros and cons for single calls or lua script?

原文：https://stackoverflow.com/questions/22330237

更新时间：2023-01-26 22:01

最满意答案

 尝试改变你的方法是这样的：  
public void DoSomethingOnProperty<T>(Expression<Func<T, dynamic>> propertyName) where T : class, new()
    {
        var object1 = Activator.CreateInstance(typeof(T));
        var methodName = (propertyName.Body as MemberExpression).Member.Name;
        var propertyInfo = typeof(T).GetProperty(methodName);
        typeof(T).GetProperty(methodName).SetValue(object1, Convert.ChangeType("Test string", propertyInfo.PropertyType));

        //DoSomethingOnProperty(object1.thesameproperty...)

    }
 
 你可以使用它  
DoSomethingOnProperty<ObjectMy>(x => x.Prop1);

Try changing your method like this: 
public void DoSomethingOnProperty<T>(Expression<Func<T, dynamic>> propertyName) where T : class, new()
    {
        var object1 = Activator.CreateInstance(typeof(T));
        var methodName = (propertyName.Body as MemberExpression).Member.Name;
        var propertyInfo = typeof(T).GetProperty(methodName);
        typeof(T).GetProperty(methodName).SetValue(object1, Convert.ChangeType("Test string", propertyInfo.PropertyType));

        //DoSomethingOnProperty(object1.thesameproperty...)

    }
 
you could use it like 
DoSomethingOnProperty<ObjectMy>(x => x.Prop1);

redis lua脚本与单个电话(redis lua script vs. single calls)

最满意答案

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