strategy rts

The policy pattern is also a very common design pattern and is not complex. Let's take a look at the pattern here.Definition: A policy pattern defines a series of algorithms, encapsulates each algorithm, and makes them interchangeable. The policy pattern allows the algorithm to vary independently from the customer who uses it. Role: Abstract policy Role (strategy): Abstract Policy class. Specific policy role (CONCRETESTRATEGY): Encapsulates

oracle| Backup | strategy | recovery | data | database SummaryThe recovery of lost database files depends to a large extent on the backup strategy used. Based on the flexibility of recovery, this paper discusses the backup and recovery strategy of Oracle8 database, and gives the project development example of the script file which automates the backup process und

The key part of search engine optimization is to have a successful strategy for content transfer and URL change. These are a big challenge for a portal with a lot of content. The goal of the SEO migration strategy is: Maintain and improve the site rankings Maintain and improve traffic on the site Maintain and improve link connectivity Improve the user experience If you don't tell the search engine exa

Recently in the learning database of read-write separation and master-slave replication, the use of a master multi-slave strategy, using polling method, read the contents from the database. However, if a certain station from the database down, and the client does not know, each round to choose this from the database, do not have to error? Online access to the information, found a good blog post, not only the solution, but also detailed about the datab

Original address: http://blog.csdn.net/hguisu/article/details/75582491. Strategy mode: Define a series of algorithms, encapsulate each algorithm, and make them interchangeable with each other. This mode allows the algorithm to be independent of the customers who use it. Also known as policy mode.2. ApplicabilityUse strategy mode when the following conditions are present1) • Many of the related classes are s

List some of the common performance optimization strategies. n Use space to change time. This strategy is optimized at the system architecture level. We know that a variety of caching mechanisms, from CPU l1/l2/ram to hard drives, can be used to change the time-to-space strategy. This kind of strategy basically is to avoid the repetition of the computation by usi

The policy mode belongs to the behavior pattern of the object. It is intended for a set of algorithms that encapsulate each algorithm in a separate class with a common interface, so that they can be replaced with each other. The policy pattern allows the algorithm to change without affecting the client.Structure of the policy patternThe strategy pattern is the wrapper over the algorithm, which separates the responsibility of the algorithm and the algo

Objective Just worked overtime, eh, the company stipulated that usually overtime only 10 dollars of meal supplement, Saturday and Sunday overtime, only to give a series of leave, in the state-mandated holidays in accordance with 3 times times the wages issued. So for so many ways to calculate overtime, the company's OA system is how to do it? This is going to be about the strategy design pattern I've summed up here today. Policy mode In Gof's desig

is, a system needs to dynamically select one of several algorithms. used when an application needs to implement a specific service or feature, and the program has multiple implementations. A class defines a variety of behaviors, and these behaviors appear as multiple conditional statements in the operation of this class. The related conditional branches are moved into their respective strategy classes in place of these conditional statements. Adva

trend of homogeneity of product characteristics, it is doomed to hammer mobile phone from a lifetime will be with other positioning different functions of the same product and product users directly collision. Collision to collision, which part of the people will become users, which part of the natural hatred of the hammer, Lao Luo is in the mind. Therefore, for the limited resources, the pursuit of survival of the hammer company, firmly grasp that part of the pre-users, to survive the opportun

= = = ' S ') ){ - returnlevels (salary); - } the if(level = = = ' A ' ){ - returnLevela (salary); - } - if(level = = = ' B ') ){ + returnLevelb (salary); - } + }; A atCalculate (' A ', 10000);//Output: 30000This code is better than the above, but still does not solve the key problem, the Calculate function may become more and more large, and the function is still lack of elasticity.idea three : The strategy