Adapter Definition:Adapter mode (Adapter pattern): Converts an interface into another interface that the customer wants, and the adapter mode can work with those classes that are incompatible with the interface, whose alias is the wrapper (Wrapper). The adapter mode can be either a class-structured pattern or an object
What is the adapter mode?
In computer programming, the adapter mode (sometimes called packaging style or packaging) adapts a class interface to what the user expects. The adapter can work together classes that cannot work together because of the incompatibility of interfaces, by encapsulating their own interfaces in an existing class.
How does one implement the
1. OverviewDuring software development, we often encounter inter-system integration. The most common problem during system integration is the inconsistent interfaces between systems. Many system modules that can meet the requirements are unavailable due to inconsistent interfaces. For example, the commonly used media players are MS media player and RealPlayer. Their file structure and software interfaces are completely different. The former supports the WMF Format of audio and video, the latter
Android note 11. ListView + AdapterUnderstanding Adapter 1. ListViewListView is a common component in Android development. It displays data in the form of a list. Generally, a ListView consists of the following three elements:1. View: Displays the list view, which is usually specified by an xml file. As we all know, the Android interface is basically completed by the xml file, so the ListView interface should also use the xml definition. For example,
The adapters in life
Buy a laptop, buy a mobile phone, there is a power adapter, the power adapter is called external power supply, is a small portable electronic equipment and electrical power supply voltage conversion equipment, commonly used in mobile phones, notebook computers. Its role is to convert the home's 220V high voltage to these electronic products can work 5v~20v low voltage, so that they can
Adapter modeFrom the name you can see that the adapter is for the interface mismatch, and the compatibility method made,Suppose we have an already existing class adaptee, some of which already exist and implement a good method MethodA. However, the client does not want to call this class, but instead wants to invoke a specific interface such as the target interface.So if you want to call the Adaptee.methoda
Design Mode in Android-adapter ModeAdapter Mode
From the name, we can see that the adapter is a compatible Method for interface mismatch,Suppose we have an existing class Adaptee, and some of them have existing and implemented Methods methodA. But the customer does not want to call this class, but wants to call a specific interface, such as the Target interface.So if you want to call Adaptee. the methodA ()
http://blog.csdn.net/jason0539/article/details/224684571. OverviewTransforms the interface of one class into another interface that the customer wants. The adapter mode makes it possible to work together those classes that would otherwise not work together because of incompatible interfaces.2. Issues to solveThat is, the adapter mode makes it possible for those classes that cannot work together because the
4. Adapter Mode SummaryIn the object adapter mode, the adapter is associated with the adaptation, and in class adapter mode, the adapter is an inheritance relationship to the appropriate person. whether an object adapter or a clas
Problems in the real world
There is a socket, this socket is three mouth, but we have only two tentacles of the plug, a stupid method is to directly force the two tentacles bent, inserted into (this kind of thing I have done), there is another way is to find a conversion head.Look at the following figure is probably clear, it is obvious that the existing system is difficult to match with vendors, how to do it? Well, the adapter is handy.
Some examples of life
In our daily life, for the adapter, can be said to be everywhere. For example, we usually use the notebook computer, may be the operating voltage of the laptop is 20V, but our general household electricity is 220V, this time when the computer is charged with a power adapter to the 220V of the computer to convert to 20V voltage. This power adapter
This article mainly introduces the Adapter mode in php design mode, and uses php to implement the Adapter mode. if you are interested, refer to it.
I. intention
Converts an interface of a class to another interface that the customer wants. The Adapter mode makes it impossible to work together because the interface is incompatible.
II. structure of the
Adapter mode what is adapter Mode
The adapter mode is a structural mode that allows two unmatched interfaces to work together.
The adapter mode allows two unmatched classes to work collaboratively by converting one interface type to another interface type that the client expects.
The
You want to use a class that already exists, and its interface doesn't fit your needs.Creating a class requires working with other classes to accomplish the task, requiring an adapter to transfer methods from other classes to the adapterWhat is adapter mode: There is a target client class that wants to apply an interface to an already existing class, but the interface of the existing class does not conform
In Series 1, the RM and MPEG classes inherit the videomedia abstract class, while the videomedia class implements the imedia interface, which only provides the play () method. Ice soda is intended to provide RM, MPEG with different attributes and methods than audiomedia. For example, for Video Media, there should be a method to adjust the screen size, such as resize (). This method is not available for the imedia interface.
So how does one provide the resize () method not available in the imed
experience reach a certain level, and it also means to summarize a lot of good design experience, however, it may not be the case that "no teacher can do anything", or you can say that, on the basis of level and experience, it is time for the system to learn the "mode, it is helpful to learn the experts' summary and verify your own shortcomings.
This series of design patterns learning notes is actually a Learning Record for the book "Java and patterns.
Adap
Design Mode note 07-adapter mode and appearance Mode1 IntroductionIn this chapter, we will carry out a task, to the extent that it is impossible to put a square into a circular hole. That sounds impossible? With the design model, it is possible. Do you still remember the decorator mode? We pack the objects and give them new responsibilities. Now, some objects are packaged for different purposes: to make their interfaces look different from what they a
Java design mode Series (vi) adapter mode
The adapter mode transforms the interface of one class into another interface that the client expects, so that two classes that would otherwise not work together because of an interface mismatch can work together.
Structure of the adapter mode:
class's Adapter
1. Definition of Adapter mode (Adpater pattern)(1) Convert the interface of a class into another interface that the customer wants. The adapter mode makes it possible for those that cannot work together because the interface is incompatible .(2) Structure and description of the adapter mode①client client, call the domain interface target that you need②target:
1. OverviewTransforms the interface of one class into another interface that the customer wants. The adapter mode makes it possible to work together those classes that would otherwise not work together because of incompatible interfaces.2. Issues to solveThat is, the adapter mode makes it possible for those classes that cannot work together because the interface is incompatible.Here are two very vivid examp
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