strategy rts

From the official The policy pattern defines a series of algorithms, encapsulates each algorithm, and allows them to be replaced with each other. The policy pattern makes the algorithm independent of the customers who use it. Structure diagram Simple implementations in Ruby (code from Ruby design mode) # According to the duck model, there is no policy object to inherit a base class that provides a uniform interface #策略1 Class HTMLFormatter Def output_report title, text

Based on the OO Foundation, begin to learn design patterns carefully! Design patterns are essential in Java design! Apple.java Package strategy; /** * * @author Andy * */Public class Apple implements discountable { //weight private double Weight; The exact calculation of design money in the actual development of unit Price is bigdecimal; private double price; Discount on purchase //private Discountor D = new Appleweightdi

work system.Today, I will understand how the Http cache header works together from a system-based perspective (incorrect place, please correct me, but please do not spray me):HTTP Cache ArchitectureFirst I will divide the Http caching system into the following three parts:1. Cache Storage PoliciesUsed to determine whether the Http response content can be cached by the client and which clients can be cachedThis strategy has only one function that dete

also be validated by a set of authentication mechanisms, which is the "cache expiration policy" below. 2. Cache Expiration Policy The client is used to confirm whether the cached data stored locally has expired, and then decide whether to send a request to the server to get the data This strategy has only one function, that is, to determine whether the client can directly load data from the local cache data and show (otherwise send a request to the s

The strategy model is actually very simple (to hear this sentence, people are not in the heart suddenly relaxed? ）。For example, the official tells everyone I have here a sort of interface isort the sort () method, and then the folk do their best to achieve this sort of method: bubbling, fast, heap and so on.These methods are "different strategies".Then, under a module, you need a sort method, but you can't specify a specific sort method (for extended

is website optimization A common technology? People who have some experience in optimization know that it can not be set in general in every industry, not the same industry site optimization needs to adopt a different strategy. The difference between the industries mentioned here is mainly about the heat on the Internet. Many industries are starting to dabble in the Internet, but not every industry has the same pace. Some have developed quite mature,

Search and SEO is the focal Meng Meng of the relationship between the focus. But what about SEO now? Since then the search has turned out. We will find that the search is to subvert our understanding of traditional search, he is based on human search, you can enter a movie, or an event, you found that the results of the ranking is considered a very hot factor. such as heat, the degree of attention, and so on. If the current SEO personnel are still using the previous set of optimization

Many webmaster do seo, through the SEO to marketing their own site is the goal of each of us. A lot of webmaster do well, is the object of our study, I have contact with SEO has a long time, overall, SEO also let oneself harvest a lot, so today and you share the main content is to do SEO the most important three aspects: time, mentality and strategy. The characteristics of a thing often determine his advantages and disadvantages. SEO is very powerful

Strategy February 18, 2005, BEA announced to join the Eclipse Open Source Foundation, March 22, the company held a press conference in Beijing, a high-profile release of its telecommunications industry-oriented infrastructure products WebLogic communication platform, that is, The Da Vinci program. In an interview with Mr. Chen Jianyu, a senior product marketing manager for BEA Asia Pacific, he said this was a very busy year for Bea, with not only a lo

amount of data per storage device is relatively small enough to meet the performance requirements of the system. It is noteworthy that there are many strategies for system fragmentation, for example, the following are common: Depending on the ID feature: for example, modulo the ID of a record, the result is a few, then the record is placed on a data partition that is numbered. Based on the time range: for example, the first 1 million user data is in the 1th partition, and the second 1 million

The selection of Access layer technology in metropolitan Area Network to a large extent, it determines the construction mode of the broadband IP metropolitan Area Network, this paper tries to analyze the advantages of the two modes by comparing the technology and cost of the LAN and XDSL two kinds of main access modes, and provides the construction strategy for the operators to choose the technology. Keyword LAN access ADSL broadband IP metropolitan

Label:This article will mainly introduce some common global primary key generation strategies, and then highlight a very good global primary key generation scheme used by Flickr. For the split strategy and implementation details of the sub-list (sharding), refer to the previous article in the series: Database Library sub-table (sharding) series (i) Split implementation strategy and sample demo the original