factory design pattern

Before reading this article, we suggest you first look at the javascript design pattern of this article. After all, I personally feel better. The factory mode is divided into the simple factory mode and the complex factory mode. The former uses a class to generate an instanc

Type: Object-Creation pattern Intent: defines an interface for creating objects, letting subclasses decide which class to instantiate. Factory method causes the instantiation of a class to be deferred to its subclasses. Applicability: When a class does not know the class of the object it must create. When a class wants to specify the object it creates by its subclass. When a class delegates t

I have a blog about"Simple factory Mode". This blog briefly introduces "Factory method mode ".IntroductionDefines an interface for users to create objects, so that the subclass determines which class of the instance. Factory method delays the instantiation of a class to the subclass. ---------- Design patterns gofThe c

Abstract Factory: provides an interface for creating a series of related or mutually dependent objects without specifying their specific classes. The biggest benefit of the abstract factory model is that it is easy to switch the product series. Because the specific factory classes only appear once during initialization, it is very easy to change the specific

future. The design pattern is not restricted by the language and is easier to implement using. Net or Java. Factory) The factory mode is a creation mode (creational ). Singleton also applies to the creation mode, which will be available later. Key points of the factory mode

Implements ifactory { public Operation CreateOperation () { returnnew addoperation (); }} Package Com.hml.factory.method; Public class Implements ifactory { public Operation CreateOperation () { returnnew suboperation (); }}Class diagramWhen the factory method pattern is implemented, the client needs to decide which factory to instan

and ConcreteFactory2 are concrete factories, just like Sqlserverfactory and Accessfactory. Typically, when you run to create an instance of the Concretefactory class, this creates a product object that has a specific implementation, that is, to create a different product object, the client should use a different specific factory. 2 Duties of abstract factories Through the detailed analysis above, we can get the main function of each object in the abs

Design Pattern factory method pattern Main content: 1. Factory method mode 2. Multiple factory method Modes 3. Static Method Mode I. Factory method mode public abstract class Animal {

Talking about the JAVA Design Pattern -- FactoryMethod and java factory patternReprinted please indicate the source: http://blog.csdn.net/l1028386804/article/details/45440937I. Overview Defines an interface used to create objects, so that the subclass determines which class to instantiate. FactoryMethod delays the instantiation of a class to its subclass. Ii. App

Preface There are three patterns in the design pattern that are related to the factory pattern: The Simple factory model, the factory method pattern, and the abstract

Factory pattern example in javascript Design Pattern This article mainly introduces the example of the factory mode in the javascript design mode. For more information, see Original javaScript

Definition of factory method patternthe meaning of the factory method (Factory) pattern is to define a factory interface that creates product objects, deferring actual creation to subclasses. The Core factory class is no longer re

1. Mode motivationAfter learning the simple Factory mode, now modify the system, no longer design a button factory class to unify the creation of all products, instead of the specific button creation process to the specialized factory subclass to complete , we first define an abstract button

and Abstractproduct classes in Test class:1 Public classTest {2 Public Static voidMain (string[] args) {3Ianimalfactory blackanimalfactory =Newblackanimalfactory ();4ICat Blackcat =Blackanimalfactory.createcat ();5 blackcat.eat ();6Idog Blackdog =Blackanimalfactory.createdog ();7 blackdog.eat ();8 9Ianimalfactory whiteanimalfactory =Newwhiteanimalfactory ();TenICat Whitecat =Whiteanimalfactory.createcat (); One whitecat.eat (); AIdog Whitedog =Whiteanimalfactory.createdog (); - whitedog.

I haven't written it for a long time. I am sorry for the poor writing. I hope that I can communicate with like-minded people.ProgramPersonnel packages are improved together. With regard to the design model, I adhere to the principle of "useful learning, useless putting. I think it is hard to remember a design pattern that you have never used before and have nev

Abstract Factory mode abstract factory provides a unified creation interface for a product family.Abstract Factory Model From: http://zh.wikipedia.org/wiki/%E6%8A%BD%E8%B1%A1%E5%B7%A5%E5%8E%82 Abstract Factory ModelAbstract Factory is a common

After so long winter vacation, the learning efficiency is not very high, and many of the planning objectives are not completed, but there are still some gains, that is, the book "big talk Design Pattern, it gave me a deeper understanding of OOD and many vague concepts in the past. I was confused about the concept of design patterns. Now I know that ProgramIt is

In the article "do you know the PHP design mode", we have briefly introduced the factory mode. today, let's take a closer look at the application scenarios of the factory mode in PHP development. Many design patterns encourage loose coupling in the design patterns book. To u