First, prototype (Prototype) mode
The purpose of the prototype pattern is to specify the type of object to be created by giving a prototype object, and then create more objects of the same type with the method of copying the prototype
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
From: http://www.cnblogs.com/zhenyulu/articles/39257.html
Reference: http://www.dofactory.com/Patterns/PatternPrototype.aspxI. prototype mode
Definition: Specify the kind of objects to create using a prototypical instance, and create new objects by copying this prototype.
The purpose of the prototype mode is to specify the type of the object to be created by givi
PS One sentence: Eventually choose Csdn to organize the publication of the knowledge points of these years, the article parallel migration to CSDN. Because CSDN also support markdown grammar, Ah!OverviewPrototype mode is a creation design pattern that returns a new instance by copying an already existing instance, rather than creating a new instance. The copied instance is what we call a
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
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-
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
Introduction of prototype Model (Brief Introduction)
Prototype mode (Prototype pattern): Specifies the type of object to create with a prototype instance, and creates a new object by copying the prototypes.
Specify the kind of objects to create using a prototypical instanc
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
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
= (resume) resume.clone (); Resume resume2 = (resume) resume.clone (); System.out.println (Resume.tostring ()); System.out.println (Resume1.tostring ()); System.out.println (Resume2.tostring ());}}advantages and scenarios for the prototype model:The biggest advantage is that creating objects is better than new, because the Clone method of the object class is a local method that directly operates in-memory binary streams, especially when copying large
Prototype mode is the creation mode.
Design intent: Use the prototype instance to specify the type of object to create and create a new object by copying the prototype.
We use the class diagram of the example that builds the CV to illustrate the prototype
not, the client needs to replicate the prototype object on its own.Under what circumstances is prototype mode used? It is assumed that the product class of a system is dynamically loaded, and that the product class has a certain hierarchical structure. At this time, if the factory model is adopted, the factory class has to have a corresponding hierarchical structure. Once the grade structure of the product
Design Patterns ----Prototype ( prototype ) Mode
GoF : Specifies the type of object to create with a prototype instance, and creates a new object by copying the prototypes.
Using Java Collections For example, ArrayList, HashMap, and so on must have had the experience of copy an object to another object, with the
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.