eip 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! Really !). Benefits: The application scenarios

Chapter 1 of design patterns-factory method patterns (Java implementation)"I come first", "No, husband, I come first !". I heard a few people from far away. Oh no, it's the factory method model and the abstract factory model. The couple are quarreling. nimei is not eating, not all come first (the world of food ~). "Abstract Factory model, fast self-introduction, factory method model. As a man, you must unde

the action executes.It is necessary to verify the existence of the message before executing the message action queue, and then traverse the message execution method queue and execute it sequentially.function (type, args) { if (! _messages[type]) { return; }; var events = { type:type, | | {} }; for (var i = 0, len = _messages[type].length; i ) { _messages[type][i].call (this , args); 3. The ability to unregister a message removes the message fr

Structure mode, a total of seven kinds: Adapter mode, adorner mode, proxy mode, appearance mode, bridging mode, combined mode, enjoy the meta-mode.First, the adapter mode:The adapter pattern transforms the interface of a class into another interface that the client expects, in order to eliminate compatibility issues with classes caused by mismatched interfaces. There are three main categories: The adapter mode of the class, the adapter mode of the object, and the adapter mode of the interface. F

is the new Pegadapter, called Two-way adapter:1 Public classPegadapterImplementsiroundpeg,isquarepeg{2 3 　　 Privateroundpeg roundpeg;4 　　 Privatesquarepeg squarepeg;5 6 　　 //Construction Method7 　　 PublicPegadapter (Roundpeg peg) { This. roundpeg=peg;}8 　　 //Construction Method9 　　 PublicPegadapter (Squarepeg Peg) ( This. squarepeg=peg;)Ten One 　　 Public voidInsert (String str) {roundpeg.insertintohole (str);} A -}　　There is also a kind of called pluggable adapters, can dynamically

observers, that is, dependent objects, each time data changes, these 2 view will changeclassHexviewer (object):defUpdate (self, subject):Print 'hexviewer:subject%s has data 0x%x'%(Subject.name, Subject.data)classDecimalviewer (object):defUpdate (self, subject):Print 'decimalviewer:subject%s has data%d'%(Subject.name, Subject.data)if __name__=='__main__': Data1= Data ('Data 1') Data2= Data ('Data 2') View1=decimalviewer () view2=hexviewer () Data1.attach (view1) Data1.attach (view2) Data2.attach

Java classic 23 design patterns: behavioral patterns (4) This article describes the policy mode, template method, and visitor mode in 11 behavioral design patterns.I. Policy Mode Define a series of algorithms, encapsulate each of them, and make them replaceable. This mode allows algorithms to change independently of customers who use it. 1. Strategy defines the public interfaces of all supported algorithms.

Introduction to one-piece JavaScript design patterns and javascript Design Patterns Single-piece mode description 1. note: The single-piece mode is an object that has been instantiated during static access. This object can only be accessed through a unique entry, and has been accessed by instances or objects to be instantiated; object-oriented languages such as Java ,. net C # in such a dynamic server lang

Design Patterns (iii) AbstractFactory patterns-creation Models Abstract Factory mode is the most abstract and general factory mode in all forms. Abstract Factory mode refers to a factory mode used when multiple abstract roles exist. Abstract Factory mode provides an interface to the client to create product objects in multiple product families without specifying the specific product. According to the LSP pr

Design Patterns-understanding of appearance patterns Appearance mode: provides a consistent interface for a group of interfaces in the subsystem. This mode defines a high-level interface, making the subsystem easier to use. In the data room charging system, the appearance mode is used to remove the coupling between the U layer and the B layer. According to the previous practice, when the functions in the U

Java implementation of structural design patterns-appearance patterns I. Description The appearance mode is also called the facade mode, which is to package a complex system. The external interfaces of the system are provided by the appearance class. When a complex system needs to provide external interfaces, it needs to encapsulate the interfaces provided externally in a uniform appearance class for extern

Concept and Usage Analysis of JS design patterns, and js Design Patterns This article describes the concept and usage of the state mode in JS design mode. We will share this with you for your reference. The details are as follows: 1. Overview When the internal state of an object changes, it is allowed to change its behavior. This object seems to have changed its class. 2. Solved problems The main solution i

use an iterator to iterate over the upload object until it gets to a usable one: //IE Upload Control varGetactiveuploadobj =function(){ Try{ return NewActiveXObject ("txftnactivex.ftnupload" ); }Catch(e) {return false; } }; //the Supportflash function does not provide varGetflashuploadobj =function(){ if(supportflash ()) {varstr = ' ; return$ (str). appendTo ($ (' body ')) ); } return false; }; //form Upload varGetformupladobj =function(){

classProducterImplementsRunnable {PrivateSyncstack stack; publicproducter (syncstack Stack) { this. Stack =stack; } public voidRun () { for(inti = 0;i) {String Producter= "product" +i; Stack.push (producter); System.out.println ("produced:" +producter); Try{thread.sleep (200); } Catch(interruptedexception E) {//TODO auto-generated Catch blockE.printstacktrace (); } } }}Create a Consumer: public classConsumerImplementsRunnable {PrivateSyncstack stack; p

;temperature = temperature;this->humidity = humidity;This->pressure = pressure;Measurementschanged ();}};Class Currentconditionsdisplay:public Observer,public Displayelement{Publicfloat temperature;float humidity;subject* Weatherdata;PublicCurrentconditionsdisplay (subject* in_weatherdata){This->weatherdata = In_weatherdata;In_weatherdata->registerobjecet (/* (observer*) */this);}void update (float temperature,float humidity,float pressure){This->temperature = temperature;this->humidity = humidi

exist, then new instance is returned, otherwise an existing instanceif (instance = = null){Instance = new Singleton ();}}}return instance;}} 2 , client-side code static void Main (string[] args){Singleton Singleton2 = Singleton.getinstance ();Singleton Singleton3 = Singleton.getinstance ();if (Singleton2 ==singleton3){Console.WriteLine ("Instance Singleton2 is the same as instance Singleton3! ");}Console.readkey ();} The singleton pattern can a

Design patterns can be divided into three types depending on the type of use:1. creation mode : Factory (Factory mode), Singleton (single State), Builder ((builder mode), Prototype (prototype mode), factory method mode.2. structure mode : Flyweight (Shared mode), Bridge (bridge mode), Decorator ((decorative mode), Composite ((combo mode), Adapter (adapter mode), Proxy (proxy mode), facade (appearance mode). 3, behavior mode : Iterator (iteratio

spend. The theme mode is to start the message subscribers to make the subscription, and then start the message Publisher to publish the message, so that the message subscribers can receive messages published by the message Publisher. So we start the message subscribers first, and then start the message Publisher. When you are finished booting, you should see the following information on the "Topics" page of ACTIVEMQ:In addition to the above differences, let's start two subscribers and then laun

Reprint Please specify source: http://blog.csdn.net/lhy_ycu/article/details/39828653Combined Mode (Composite): The combined mode is sometimes called part-whole mode, which combines objects into a tree structure to represent the "partial-whole" hierarchy. The combination mode is convenient when dealing with the problem of tree structure.First, UML modeling:Second, the Code implementation /** * Example: Combination mode is sometimes called "consolidation-Partial" mode * * Combined mode is convenie

As the name implies, multiple cases are compared to a singleton pattern, which can have more than one finite instance, such as the following, can only have two instances.Import java.util.ArrayList;Import Java.util.Random;Class Multition{Private final static int max_number=2;private static arraylistprivate static int index=0;Private String Currentmultitioninfo;Static{for (int i=0;i{Index=i;Amultitionarraylist.add (New Multition ());}}Private Multition (){Currentmultitioninfo= "The current object