sas factory

Factory approach (Factory method)* Factory method puts different products in different factory classes that implement the Factory interface (Factoryaimpl,factorybimpl ... Inside* So even if one of the factory class is out of the q

1. Simple factory:The factory class in a simple factory contains logical judgments that can be dynamically created based on the client's choice, removing the client's reliance on the specific product. Note that simple factories violate the principle of opening and closing in design mode, so simple factories are not design patterns.Constitute:A specific factory cl

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->// Simple factory Mode Public abstract class pizza {} Public class pizzaA: pizza {} Public class pizzaB: pizza {} // Currently, this pizza can serve many customers who need pizza Information Public class simplePizzaFactory { Public pizza createPizza (string type) { Pizza p = null; If (type = "") { P = new pizzaA (); } Else if (type = "B ") { P = new pizza

When talking about the simple factory model last time, and then as an extension of the simple factory, the main thing isAbstract FactoryAndFactory method The general UML tool diagram provides some ready-made templates. You only need to import them. Let's take a look at the example using startUML: Abstract Factory mode: 650) this. width = 650; "style =" border-bot

{Public producta createproducta ();Public PRODUCTB CREATEPRODUCTB ();}Abstract Product Class Apublic interface Abstractproducta{}Abstract Product Class Bpublic interface ABSTRACTPRODUCTB{}Specific Product class ProdcutA1public class ProductA1 implements Abstractproducta{Public ProductA1 (){}}Specific Product class ProdcutA2public class ProductA2 implements Abstractproducta{Public ProductA2 (){}}Specific Product class ProductB1public class ProductB1 implements ABSTRACTPRODUCTB{Public ProductB1 ()

Simple Factory mode:-----------------------------------Pizza.java--------------------Package com;Public abstract class Pizza {public abstract void prepare ();public abstract void bake ();public abstract void cut ();}-----------------------------------Apizza.java--------------------Package com;public class Apizza extends Pizza {@Overridepublic void Prepare () {System.out.println ("A prepare");}@Overridepublic void bake () {System.out.println ("A bake")

Design Mode 1 factory mode Factory In object-oriented programming, the most common method is to generate an object instance with a new operator. The new operator is used to construct an object instance. However, in some cases, directly generating an object using the new operator may cause some problems. For example, the creation of many types of objects requires a series of steps: you may need to calculate

Design mode one Factory mode factoryIn object-oriented programming, the most common approach is to create an object instance with a new operator, which is used to construct an object instance. In some cases, however, the new operator's direct generation of objects poses 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 set of objects; Select which child object ins

The so-called factory model in my eyes, the factory model in my eyes When talking about the design pattern in the software architecture, the first sentence of most people is the factory pattern. Accurately speaking, there are no factory models in the classic 24 design models, but simple

Design Mode 1 factory mode Factory In object-oriented programming, the most common method is to generate an object instance with a new operator. The new operator is used to construct an object instance. However, in some cases, directly generating an object using the new operator may cause some problems. For example, the creation of many types of objects requires a series of steps: you may need to calculate

ObjectiveAn overview of the principles and classifications of design patterns has been introduced before. Today to open the design mode of learning, the first thing to introduce is the factory model, in the introduction of Factory mode before the introduction of a simple factory model, so easy to introduce.Simple Factory