Builder mode (Creation type)
Purpose:
The builder mode separates the process of generating complex objects from its constructor. The same constructor can instance different objects.
RoleThe builder pattern separates the specification of a complex object from its actual construction. The same construction process can create different representations.
Design:
The
It often floats in the rivers and lakes, and has to deal with DLL. Sometimes we need to use C ++ builder to write a DLL, and then get it in VC (for example, write a form with C ++ builder to encapsulate it into DLL ); sometimes it is necessary to use the DLL compiled by VC in C ++ Builder (for example, to get a product development kit, this package is a bunch of
Purpose:Separates the construction of a complex object from its representation, so that different representations can be created during the same construction process.
UML structure diagram:
Applicable to the following situations:
1) when creating complex objects, algorithms should be independent of the components of the objects and their assembly methods.
2) When the constructor must allow different representations of the object to be constructed.
Abstract base class:1)
Intention/Definition: separates the construction of a complex object from its representation, so that different representations can be created during the same construction process.Problem: in the face of complex object creation, objects are usually composed of certain algorithms, but each part of complex objects is often subject to drastic changes, the algorithms that combine them are relatively stable.Solution: separately encapsulate the creation of each partParticipants and collaborators: Abst
1. Overview
The generator is a new feature introduced in PHP 5.5, but it's a very useful feature that few people use to visually.
Generators and iterators are somewhat similar, but unlike standard PHP iterators, the PHP generator does not require classes to implement iterator interfaces, which eases the overhead and burden of classes. The generator calculates and outputs the values that need to be iterated each time according to the requirements, this has a great impact on the performance of t
Php has 23 Design Patterns. do you know all of them? The following code introduces the Builder mode (Builder mode )? Php * builder mode will be 1...
There are 23 php typesDesign ModeDo you all know? The following code is used to introduceBuilder mode (Builder mode)
"; $ This-> _ type = $ type;} public function setSiz
The builder model is simple, but has always been trying to figure out why it should be designed so that the builder wants product rather than the director who knows the construction process. Just now Google to an article, finally clear. Here's a richardluo metaphor.Simply put, it is as if I want a house to live, but I do not know how to cover (simple walls, low level), do not know how to design (build sever
What is the builder mode? the builder mode is mainly used to eliminate complicated creation processes of other objects. In the design scenario, there is a user's UserInfo class. to create this class, you must create the user's name, age, money, and other information to obtain the user's specific information. Create a UserInfoBuilde... SyntaxHighlighter. all (); what is the
Adobe updated the flash builder on the 25 th. The flash builder code is "burrito". The main change is that the mobile phone (Android system) application can be directly developed using flash builder, let's look at my introduction to the new feature in another article:
Software)AdoebeReleasedFlash BuilderNew Version-Adobe Flash
This pattern is to construct a hierarchical hierarchy of final objects.In the software release process, different java,python,node. Js,zip Compressed Package,You can use a different stage to use the builder mode. fromEnumImportEnumImporttimepizzaprogress= Enum ('pizzaprogress','Queued Preparation Baking ready') Pizzadough= Enum ('Pizzadough','thin Thick') Pizzasauce= Enum ('pizzatopping','Tomato Creme_fraiche') pizzatopping= Enum ('pizzatopping','mozz
In front of a blog "Eclipse newspaper" the builder launch configuration could not being found "error resolution" describes the Eclipse report "the Builder launch Configur Ation could not being found "solution, according to that approach, found no error, but ant automatic construction is gone. This is unacceptable.It seems that escape is not a problem to solve. So it is not very good to think that the "launc
Reprint Please specify source: http://blog.csdn.net/lhy_ycu/article/details/39856435Builder mode: The factory class pattern provides a pattern for creating a single class, while the builder pattern is to centralize the various products for management. For the sake of simplicity, you can get the builder mode by modifying the previous factory method pattern.First, UML modeling:Second, the Code implementation/
To get the query Builder simple, or to rely on the db façade, we use the DB Façade table method and pass in the table name to get the table's Query Builder:
$users = db::table (' users ');
So we get to the query builder of the $users table, and in fact, the bottom return is an instance of Illuminate\database\query\builder
BUILDER (builder)--Object creation mode
1. Intention: Separate the construction of a complex object from its representation, so that the same build process can create different representations.
2. Applicability: Applicable to the use of builder mode,
A. When creating complex objects should be independent of the components of the object and their assembly met
Public class _ 2_2_nutritionfacts {private final int servingsize; private final int serving; private final int Calories; private final int fat; private final int sodium; private final int Carbohydrate; private _ 2_2_nutritionfacts (Builder) {This. servingsize = builder. servingsize; this. serving = builder. serving; this. calories =
Definition: Separates the construction of a complex object from its representation, allowing the same build process to create different representations.Type: Creating class ModeClass Diagram:
Four elements
Product class: Is generally a more complex object, that is, the process of creating objects is more complex, generally there will be more code volume. In this class diagram, the product class is a concrete class, not an abstract class. In practical programming, a product class can
Builder mode: The internal representation of a product can be separated from the production process, allowing a construction process to produce a product object with different internal representationsBuilding the UML class diagram of the modal:Class Diagram Relationship Description:Builder role: An abstract interface is given to standardize the construction of each component of the Product object. Typically, this interface is independent of the applic
/** * If you have multiple parameters in a class constructor or static factory, the builder mode is a good choice when designing this class, especially if most of the parameters are optional. * Client code using the Builder mode is easier to read and write than using the traditional overlay constructor pattern, and the builder is more secure than JavaBeans. * * @
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