prototype design pattern real world example

Prototype mode (Prototype pattern)——. NET Design Pattern Series VITERRYLEE,2006 year JanuaryOverviewIn the software system, sometimes the product class is changed dynamically, and the product class has a certain hierarchical structure. If Factory mode is used, then the facto

PHP design pattern prototype mode, design pattern prototype Prototype patterns are similar to engineering patterns, and are used to create objects. Unlike the implementation of the eng

when used. sum up aThe prototype model has the following advantages: When creating a new object instance is more complex, you can simplify the object creation process by replicating an existing instance to increase the efficiency of the creation of the instance. Extensibility is good, and the prototype schema provides an abstract prototype class tha

deep replication for reference-type members Public Narorobot(string ID, string name) { This. id = ID; This. name = name; }@Override protectedObjectClone()throwsclonenotsupportedexception {///This assumes that the prototype class does not have a reference type object. return Super. Clone (); }} Finally, in the case of an existing Narorobot, the Clone method of invoking object is used to realize the creation of large-scale nano-

Creator mode. I hope that you can flexibly apply the process to actual projects. Achieve the purpose of learning to use. Let's take a look at the specific code implementation: Package builder; public class product {arraylist Through the above Code, we provide the core code form of the classic creator mode, so there are undoubtedly the following disadvantages for the above: 1. The ibuilder interface must define a complete assembly process. Once defined, it cannot be modified dynamically. 2. Th

On the internet to find a lot of this model of information said is not thorough, looked at half a day is foggy. Had to study one by oneself.Prototype mode is a creation design pattern that returns a new instance by copying an existing instance, rather than creating a new instance. The copied instance is what we call a prototype, which is customizable.Prototype pa

This article mainly introduced the PHP design pattern prototype design pattern, simply described the prototype design pattern the concept, t

is a constant prototype return to New Tablegateway (' Album ', $ Dbadapter, NULL, $resultSetPrototype);//passed into the constructor of the Tablegateway },) ; } Note that it is not the Tablegateway that uses the prototype model but resultset the use of this class. Whenever Tablegateway invokes a method such as select () or insert (), a resultset is created to represent the resu

can be used for the following scenarios: Class initialization needs to digest a lot of resources, including data, hardware resources, etc. A prototype pattern can be used to produce an object through new that requires very tedious data preparation or access rights; When an object needs to be provided to other object access, and each caller may need to modify its value, con

-UML class diagrams are often used to describe the static structure between classes when describing the design mode. The purpose of this article is to allow the readers to understand the UML class diagrams and to figure out several relationships in the UML class diagrams. -In the subsequent design model learning process, only these two points are adequate. More advanced is beyond the scope of this article.

Raise the question-analyze the problem-solve the problem. This is the general idea of writing argumentative papers. This is exactly what we usually write in this article. So learning a theory also follows this idea, the learning design model is no exception. Before learning any mode, you must first understand the background of this mode, that is, problems encountered in the actual coding or modification and maintenance code, and then analyze the probl

JS design pattern: Observer pattern to change the amount in the page in real time. Design Pattern quota The example in this article describes how to change the amount in the page in