angular 2 architecture

Recently, the company requested that the architecture of a product be changed from two layers to three layers (the reason is: For security review, a three-layer architecture is required because the database port is only open to the server ), when I heard it, I fainted. The initial architecture of the product was three layers. Later, due to various requirements du

should be changed only when I change styles,colors,positoning and so on.2. reusability : What do I do if I want to use the same color logic and gender conversion on an editorial interface like this? I'm going to copy and paste to create duplicate code?If I want to go one step ahead, use the glue code on different UI technologies, like Mvc,windows form or mobile.However, because of the close relationship between the specification and UI technology beh

is to improve the caching of the routing algorithm (otherwise, the route will fail)Database to directly increase the hardware to expand the service is cumbersome, so here our main strategy through the routing partition of multiple databases deployed to the cluster of servers.NoSQL itself is the result of big data, and scalability is better.Scalability and extensibility in the literal sense, it seems very closeIn fact, the extension, refers to the existing system to add a new module, whether it

Three, in-depth rddThe Rdd itself is an abstract class with many specific implementations of subclasses: The RDD will be calculated based on partition: The default partitioner is as follows: The documentation for Hashpartitioner is described below: Another common type of partitioner is Rangepartitioner: The RDD needs to consider the memory policy in the persistence: Spark offers many storagelevel to choose from: At the same time,

statement resource file, you can set the HTTP header Cache-control and expired properties, slow the presence of the browser1.3.1.3 Enable compression: Compression can have a certain amount of pressure on the server and the browser1.3.1.4 CSS on the top of the page, JS placed at the bottom of the page1.3.1.5 reduce cookie transmission, consider using a separate domain name for static resources1.3.2 CDN Acceleration1.3.3 Reverse Proxy1.3.4 Application Server Performance optimization1.3.4.1 Distri

Helios architecture (2) client architecture and cluster, helioscluster The client architecture of helios is similar to that of the server. Only the partial classification is different (yellow). It is the client architecture. It can be seen that only two instances of ICon

Document directory Game Logic Sound Graphics Output The second article is too simple. I will not translate it when I get started with Android development. The third article is about the basic game architecture. Our Android program can run. You may want to know what kind of program is a game. Let's talk about my understanding. The following table shows the architecture of a game. Game

is to divide the domain layer (also known as the "Business Layer") into two layers: the service class is independent from the domain layer and serves as the service layer. The implementation of data access here is relatively simple, mainly through implementing the IOrderRepository and IProductRepository interfaces using Linq To SQL. The Code is as follows, and will not be described here: Public interface IOrderRepository { Bool Save (Order order ); } Public interface IProductRepository{Produ

Server Web Development Kit-JSWDK) of Sun for example. Assuming that this server is installed under the \ jswdk-1.0.1 directory -- this is its default installation path in Windows, the file for the music without Borders application should be configured as follows: Create shopping directory under \ jswdk-1.0.1 \ examples \ jsp directory Copy Eshop. jsp to \ jswdk-1.0.1 \ examples \ jsp \ shopping Copy Cart. jsp to \ jswdk-1.0.1 \ examples \ jsp \ shopping Copy Check. jsp to \ jswdk-1.0.1 \ e

Tags: des cweb style blog HTTP Io color ar OS Content:This is a survey and research conducted before the implementation of the entire solution, including viewing the national standards, reviewing papers, viewing the same domestic research fields and mature products. In addition, it also studies the architecture and design of cranes, in this way, we can design the signal types to be detected for the overall hardware and the preliminary selection a

logic in the future. 1.2 layered model of SOA Architecture Next, we will briefly introduce the layered model in the SOA system, as shown in Layered Model 2 of the entire SOA architecture. Different functional modules in the SOA system can be divided into seven layers: the first layer is the existing program resources of the system, such as ERP or CRM systems. L

Three-tier architecture is implemented in the login form (2), three-tier form In the previous blog, I introduced the implementation process of the layer-3 architecture I learned in the login form. I feel that I have a little understanding of it. Today, I found that I still have many shortcomings, your understanding is not deep enough. The login function is implem

, after all, architecture design is to guide the implementation of the follow-up system construction.(ix) Other notesThis section mainly describes some of the supporting constraints or environment, such as constraints, risk considerations, progress requirements, policy constraints, environmental impact, etc., according to the actual foreseeable situation. such as high-level on the overall system requirements, development resources constraints, busines

Architecture comparison and scalability (I) Lin Fan iamafan@21cn.com Chen Xun software studio R D department managerNovember 2001 This article is the second half of "scalability and distributed architecture of clusters, we will continue to introduce several common parallel computing architectures, extensible and single system images, and important metrics of clusters. Scalable Parallel Computing Archite

problems are solved in a new area, and you have to quickly enter and master the field before you can solve the problem correctly.The above through a few examples, discussed the misunderstanding of the concept of understanding, how to effectively understand the concept, understanding the meaning behind the concept, and how to use the concept of understanding, rapid learning. Mastering these principles will help us to quickly identify and locate problems in the

I will upload my new book, "Write My Own processor" (not yet published), today is the third article. I try four articles a week.MIPS instruction set architecture since the advent of the 80 's. has been upgrading, from the initial MIPS I to MIPS V, to support the expansion module MIPS32, MIPS64 series, and integrated code compression technology microMIPS32, microMIPS64. Each MIPS Isa is a superset of its previous, no matter what omission, just add new

js| Architecture | Design Summary: By developing a familiar web-based shopping store, you'll learn how to tool MVC design patterns and really isolate content and performance when using JSP. Govind Seshadri will show you how easy it is (2000 words (original number)). Despite the relatively recent introduction, JSP technology is well on its way to becoming an excellent Java technology for creating applications that provide dynamic Web content. Java dev

responsibility of specialized teams and departments, professional people do professional things, solve the problem of coupling and extensibility between modules; Each subsystem is deployed separately to avoid a centralized deployment that causes an app to hang and all apps unavailable.Level definition function: For traffic bursts, protect critical applications, achieve graceful degradation, and protect critical applications from impact.After splitting the a