erd builder

About Builder mode details: http://blog.csdn.net/jjwwmlp456/article/details/39890699Let's start with a picture.There are still a lot of places where you can see the Builder mode used in Android.The use of the following is approximate:NotificationNotification. Builder (context). Build (); Alertdialog.builder (context). Create ();You can also create multiple prope

Builder mode Definition: separates the construction of a complex object from its representation so that the same build process can create different representations.The builder pattern is a step-by-step creation of a complex object that allows the user to build them only by specifying the type and content of the complex objects. The user is not aware of the specifics of the build internals. The

If we need to build a house, and we don't know how to build a house, we will find someone else to help us build a house. Step 1: Create a new House class House with the property of the House. Let's find the House builder interface HouseBuilder. If we want to build a bungalow, we will find PingFangHouseBuilder, which inherits from HouseBuilder, there are various methods to build a house, such as floor makeFloor and wall makeWall. Step 2: It's not enoug

Builder pattern Definition: Separates the construction of a complex object from its representation, allowing the same build process to create different representations. The builder pattern is a step-by-step way to create a complex object that allows users to build them only by specifying the type and content of complex objects. The user does not know the specific build details inside. The

/*Product.h*/#ifndef PRODUCT_H#define PRODUCT_Hclass Product{public: Product(); ~Product();protected:private:};#endif/*Product"Product.h"Product::Product(){}Product::~Product(){}/*builder.h*/#ifndef Builder_h#define builder_h#include Class product{ Public:Virtual~Builder();Virtual voidBuildparta (Const stringbuild_para) =0;Virtual voidBUILDPARTB (Const stringbuild_para) =0;Virtual voidBUILDPARTC (Const stringbuild_para) =0;VirtualProduct *getpro

Queries Builder (query Builder) 1. New data You can insert one/more data by using the Insert method of the Query Builder: Db::table (' users ')->insert ([ [' ID ' =>1, ' name ' => ' laravel ', ' email ' => ' laravel@test.com ', ' password ' => ' 123 '], [' ID ' =>2, ' name ' => ' Academy ', ' email ' => ' academy@test.com ', ' password ' => ' 123 '], [' ID '

 The intention is to separate the construction of a complex object from its representation so that the same build process can create different representations. Applicability When creating complex objects, the algorithm should be independent of the parts of the object and how they are assembled. When the construction process must allow the constructed object to have different representations. Understanding The builder model is primarily to separa

The builder pattern is somewhat similar to the previous abstract factory pattern, but more powerful than the abstract factory pattern, the builder pattern can be seen as two parts, one builder, and the other is that the basic idea of Director,builder is the abstract factory, While the director exists to make the use of

Idea: Since the interstellar picture is made up of several parts: the map (the terrain and the minerals), the building, the troops. Then we think of them as parts, assembled to be the final product (the whole picture). Builder (Builder) mode example: The code is as follows Copy Code Specification of interfaces for manufacturing individual parts Interface

The factory class pattern provides the pattern of creating a single class, while the builder pattern is to centralize the various products to manage, to create composite objects, so-called composite objects that refer to a class that has different properties, in fact the builder pattern is the combination of the previous abstract factory pattern and the last Test. Let's look at the code:As before, a sender

Design Patterns ----Builder ( builder ) Mode GoF : separates the build of a complex object from its representation, allowing the same build process to create different representations. The builder mode is very much like the Absrtact Factory mode. Gof points out that the main difference between the two is that the builde