microservices design patterns

Web Client Software Factory series (3): View-Presenter modeAuthor: TerryLee . NET Design Pattern (18): Iterator Pattern)Author: TerryLee . NET Design Pattern (19): Observer Pattern)Author: TerryLee . NET design mode (2): Singleton Pattern)Author: TerryLee . NET Design Pattern (3): Abstract Factory pattern (Abstract Fac

class should be based on the smallest interface; B. An interface represents a role and should not be handed over to an interface to those different roles; C. Customers should not be forced to rely on methods they do not need. 5. dimit's LawLaw of Demeter, dump) Also called: Least Knowledge Principle, LKP) A class needs to call a method of another class, which can be forwarded by a third party. Reduces the relationship between classes, reduces the coupling between classes, and improves the cla

9th: Common Design Patterns 9.1 aggregation componentsConsider providing aggregation components for commonly used attribute domains.The aggregation component is used to model the concept of a high-level (physical object), rather than to model the system-level tasks.To make the name of the aggregation component correspond to well-known system entities, such as MessageQueue, Process, or EventLog, you can make

Classification of plant design and design patterns: The factory model is divided into three categories in Java and mode:1) Simple Factory mode (simply Factory): not conducive to the production of products;2) Factory method mode (Factory): Also known as the polymorphism plant;3) Abstract Factory mode (abstract Factory): Also known as the toolbox, producing product

References Reference 1: http://stackoverflow.com/questions/1673841/examples-of-gof-design-patterns Reference 2: http://en.wikipedia.org/wiki/Design_pattern_ (computer_science) Reference 3: http://zh.wikipedia.org/wiki/%E8% AE %BE%E8% AE %A1%E6%A8%A1%E5%BC%8F_ (% E8 % AE % a1 % E7 % AE % 97% E6 % 9C % ba)Body You can find an overview of a lot Design

diagram for FilterInputStream:As can be seen, InputStream class is an abstract component exists, and FileInputStream is a specific component, it implements the abstract components of all interfaces, FilterInputStream class is the decorative role, It implements all interfaces of the InputStream class and holds a reference to the InputStream object instance, Bufferedinputstream is the specific adorner implementation, the role of this adorner class is to make the InputStream read data stored in me

Java Singleton design pattern, there are many ways to implement, the following describes some of the more famous implementation methods A Hungry man typeThis design pattern is simple, and there is no multi-threading security problem, which is generally used in practical development. Class Hungerydemo{private Hungerydemo () {}private static final Hungerydemo instance = new Hungerydemo ();p ubli

(' Myctrl ', function () {});④ using the Controller:Ngcontroller directive: ng-controller= "Myctrl";⑤ in the controller's callback function, the $scope object is injected, specifying the model data: $scope. variable = value;⑥ Display:{{}}--ng directive:$scope scope control objects to connect model data to views;Initialize Data--nginit:$scope object;⑦ directive:Ng-click, Ng-dbclick, Ng-focus, Ng-blur;⑧ Note:Define model data, must inject $scope;In order to identify the variables and methods decl

: Interface high cohesion is internally highly dependent and isolated as much as possible. That is, the method of internal declaration of an interface is related to a sub-module, and is required by this submodule. Interface design is limited: If you fully follow the principle of interface separation, there will be a problem, that is, the design of the interface will be less and less, so that the number

}Singletonlazy The object is not created immediately after it is loaded into the method area, it is not created until the GetInstance method is called. This way can save memory space, but there is also a thread security problem, when thread a execution to the judgment object is null, when thread B gets execution, thread B determines that the object is null, then thread a regain execution, create the object, thread B resumes, continue to create the object. Modify the code as follows, using a sync

Introduction to Design Patterns Each pattern describes a problem that recurs around us, and the core of the solution to the problem.--Christopher Alexander The design pattern describes a general solution to some common problems in the software design process. The object-oriented