abstract mosaic patterns

Chapter 1 of design patterns-Abstract Factory patterns (Java implementation)"The last time was my fault. The author of bribery asked me to talk about it first. However, my wife and adults have a lot to do with me, this time, let me add the application scenarios that have not been completed last time." (After that, I touched my knees and coughed. I didn't smile! R

object is responsible for creating products in the Windows product family. This is the application of abstract Factory mode, the solution of abstract Factory mode such as:　　Obviously, a system can only run in a Windows environment of one operating system, but not on different operating systems at the same time. Therefore, the system can actually only consume products belonging to the same product family.In

=" +intadd.operate (10, 25)); System.out.println ("10.2+25.3=" +doubleadd.operate (10.2, 25.3));//subtraction Factory is responsible for the production of two integer subtraction, And a subtraction of two double types operationfactory of2 = new Addoperationfactory (); Intoperation intsub = Of2.createintoperation ();D Oubleoperation doublesub = Of2.createdoubleoperation (); System.out.println ("10-25=" +intsub.operate (10, 25)); System.out.println ("10.2-25.3=" +doublesub.operate (10.2, 25.3));}}

? In object-oriented programming, the most common approach is to create an object instance from a new operator, which is used to construct an object instance. In some cases, however, the new operator directly generates the object, causing some problems. For example, the creation of many types of objects requires a series of steps: You may need to calculate or get the initial settings of the object; Select which child object instance to generate; Or, you must generate some accessibility objects b

supports different types of products, more convenient to use the middle of the same family of different types of products. Add a family of products, do not modify the factory class and Product class interface, do not violate the open and closed principle.Cons: The structure is too bloated, even if I simply implement, and 3x2, wrote the above so much code. If the number of product groups becomes greater or the number of families increases, it can be difficult to manage. Each time you add a group

also increases the ability to solve the practical problems. As shown in the illustration, the abstract factory pattern is like the superposition of two factory method patterns. An abstract factory creates a series of related objects in which the implementation is actually the factory method pattern used. In the factory factory each method, is like is a produc

Tags: MSSQL client abstract share picture serve img Single example structure downloadThe introduction of design patterns in real business applications Abstract Factory mode for encapsulation of database access ComponentsCommon database access Components built on C #The common database access component based on C #, fully supports the open and close principle, des

our hearts. What exactly is the abstract factory. Gof provides us with a template, which is further designed by ourselves. What is the design principle? What is the design pattern used? They are good practice standards, but they are not common. Good things can satisfy our needs, and good designs can satisfy our needs and changes. At that moment, both design principles and design patterns are integr

is as follows:Photo: Arsenal and Firearms, Bullet relations (PS: Just as, don't tangle yo)Abstract Factory method patterns can be used to design a system when the system is ready to provide a series of related objects to the user and does not want to create a coupling between user code and the class that creates the objects. The key to an abstract factory patter

PHP design model-Abstract factory. PHP design patterns-Abstract factory we have introduced the simple factory and Factory method design patterns. today we are studying the last factory abstraction factory. Case study: catch up with MM and have a meal with the PHP design model -- Ab