ifactory

method for creating objects. Subclasses implement this method to create objects of a specific type.Some of the procedures in object creation include deciding which objects to create, managing the life cycle of objects, and managing the creation and destruction of specific objects.2 from theory to realityThe Mediaplayerfactory in Android is the classic simple factory model, which is defined as:Class Mediaplayerfactory {public:class ifactory {... };

WaterA frog is laughing.--Stone and waterFactory method Mode (Factory), which defines an interface for creating objects, letting the implementation class decide which class to instantiate. The factory method defers the instantiation of a class to its subclasses.Here we write the factory on the basis of simple and factory:Define an interface first1 Package Cn.no5.factorymethod; 2 3 import cn.no1.simplefactory.Operation; 4 5 Public Interface ifactory {

, function does not support and so on. Please design a set of programs to achieve seamless data migration. Brief Introduction By using our factory method model, we have better solve the problem that users use different databases, now we have obtained the database object to create, then we need to add the data to the database, assuming all need to add department information, some users need to use Oracle, Some users need to use SQL Server. Consider the code structure of the abstract factory patte

See a few times the abstract Factory mode, each view needs to be re-understood, it may be involved in a number of classes and interfaces, so more difficult to clear the relationship it! As far as I'm concerned, we still have to learn from our thoughts rather than mechanically.Look at the class diagram:Liar design mode-Class diagramLook at the class diagram has been very chaotic, to simply comb under. We only look at the interface, so it is not difficult to see that the abstract factory is actual

Ifactory class Interface Copy Code code as follows: #import #import "Operation.h"@interface Ifactory:nsobject-(operation*) createoperation;@end Ifactory class implementation Copy Code code as follows: #import "IFactory.h" @implementation Ifactory-(operation*) createoperation{return [[Operation alloc]init];}@end

abstract product object. Specific product class (CONCRETEPRODUCT): Implement class, implement abstract product class, define specific Product object. Code: Factory interface interface Ifactory {public ICar createcar (); } Product Interface interface ICar {public void run (); } Small car factory class Smallcarfactory implements Ifactory {public ICar Createcar () {return new Smallcar (); } //Large

size of your phone /**@author*/publicabstract class Applephone { /** * Get size * / protected Abstract void getsize ();}Different models of "mobile phones" for Apple phones/*** Iphone4 *@authorSONGWZ **/ Public classIphone4extendsapplephone{@Override Public voidGetSize () {System.out.println ("IPhone4 Screen: 3.5 inch"); }}/*** IPhone5 *@authorgt780 **/ Public classIphone5extendsApplephone {@Override Public voidGetSize () {System.out.println ("IPhone5 Screen: 4 inch"); }}/*** I

a specific class.Features: Compared to the factory model, there can be more than one entry, and there are various types of returns. The following example returns two types, B, which are not unique to the abstract class, so use an interface to implementFactory interface Package note.com.factory; Import Note.com.bean.a; Import note.com.bean.b; Public Interface ifactory { public A geta (); Public B Getb ();}Factory Implementation Class 1 P

Definition: Defines an interface that is used to create an object, so that subclasses decide which class to instantiate, and the factory method defers the instantiation of a class to its subclasses.Type: Create class modeClass Diagram:Factory Method Pattern CodeInterfaceiproduct {public void Productmethod (); }ClassProductImplementsiproduct {public void Productmethod () {System.out.println ( "products"); }} interface IFactory {public iproduct createpr

Design pattern--Abstract Factory mode1, definition: Provide an interface that creates a series of related or interdependent objects without having to develop their specific classes;2, the following is a schematic diagram of the abstract factory pattern:3, the implementation code of the Abstract factory pattern:1), Structure diagram:　　2), CodeEntry Class Main.class:public class Main {Public static void Main (string[] args) { Breadmaker Breadmaker;Pizzamaker Pizzamaker;System.out.println ("Openin

Factory)Four roles are involved: Abstract Factory roles, specific factory roles, abstract product roles, and specific product roles.Abstract Factory roles use interfaces or parent classes to describe factory behaviors,A specific factory role is responsible for creating a certain type of product objects.Abstract product classes can use interfaces or parent classes to describe the behavior characteristics of product objects.A specific product class is a specific object. The factory mode is differe