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Solution to C ++ Design Pattern builder PatternC ++: builder Mode
Separates the construction of a complex object from its representation, so that different representations can be created during the same construction process.
I. Reasons
When constructing a window control, we usually have three initialization tasks:UI
Design Pattern-builder Pattern
Concept:
Builder mode separates the creation of a complex object from its representation, so that different representations can be created during the same construction process.
The builder model can
that different representations can be created during the same construction process.
-- Design Pattern gofStructure:
Collaboration:
Code Implementation
Using system; using system. collections. generic; using system. text; namespace builder {class program {static void main (string [] ARGs) {console. writeline ("true: Chinese style houses, false: Western style hou
Code download
1. ConceptSeparates the construction of a complex object from its representation to make the same constructionThe process can create different representations. Such a design pattern is called the builder pattern.Key Points
1). Builder: Specifies an abstract interface for each part of a product object.2)
The php design pattern Builder code is as follows:
/**
* Builder mode
*
* Separates the construction of a complex object from its representation. different representations can be created using the same construction process.
*/
Class Product
{
Public $ _ type = null;
Public $ _ size = null;
Public $ _ color = null;
Pu
has a detailed comment code, here is not too much explanation, you can refer to the code and comments to compare with real life examples, showing the above code running results:The computer starts to assemble ... Component CPU1 assembled components main BOARD1 has installed the computer to assemble the computer began to assemble ... Component CPU2 assembled components main BOARD2 The computer is ready to assemble.Iv. implementation of the builder mod
Android design mode-builder mode and android design mode --
Looking back at what I wrote, the code written on Android custom controls has a high applicability, but does not seem to have any technical content. So when learning the
Builder model
In Gof, the foundation of design pattern reusable object-oriented software, it is said that the construction of a complex object is separated from its representation, so that the same build process can create different representations.
This remark, indefinitely. The creation of a complex object, usually composed of a number of child objects, and i
Introduction to Builders ' modelsThe builder pattern separates the construction of a complex object from its representation, allowing the same build process to create different representations. In other words, the build pattern is the object's creation pattern. The construction mode separates the internal representatio
, immersed in love all day, is not familiar with the environment around the school. However, GG only asks the landlord for help. The landlord said this was a small problem, but the cost was a little high. Let's plan it first, and then ask the decoration master to directly complete the renovation. After nearly half a day of discussion, the solution was finalized. My brother reluctantly prepaid the decoration fee of two thousand yuan to the landlord. The next step is to wait for the decoration new
1, the use of the scene:
If you need to separate the construction of a complex object from his presentation so that the same build process can create different representations of intent, we need you to apply a design pattern,' builder mode ', also known as the generator pattern. The
Related articlesSix principles of design pattern designSeven ways to style a single case pattern of design patterns1. Introduction to Builders ' modelsdefinitionBuilder mode, which separates the construction of a complex object from its representation, so that the same build process can create different representations
product: Public class Director { private builder Builder; Public Director (Builder builder) { this. Builder = Builder;} // Parta A part PartB PARTC the final composition of a complex object // This is the process of assemblin
only provides for the construction of individual components in the product class, and the concrete construction process is delivered to the Director class. The Director class is responsible for assembling individual components into products according to specific rules, and then delivering the assembled product to the client.SummarizeThe builder pattern is similar to the factory model, they are both
.
The builder pattern is primarily used to "step-through-build a complex object", where "step-by" is a fixed combination process, and the parts of the complex object are constantly changing, which means that the internal components of the notebook are constantly changing, such as the performance of the hard disk and CPU products.
The product does not require abstract classes, as the final product cr
possible to customize the construction objects for DIY or refinement and so on. Without worrying about the other modules that will produce whatever affects the builder mode usage scenario: 1. The same method, different run order. When different event results are generated, the builder pattern can be used 2. Multiple steps or parts. Can be assembled into an objec
BuilderPart2() {System.out.println ("Building a second part"); Product.setpart2 ("Name: Transformers"); }/** * Product Return method * / PublicProductRetrieveresult() {returnProduct }}public class director { /** * holds the currently used constructor object */ private B Uilder Builder; public director (Builder builder) {super (); this .
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