Https://en.wikipedia.org/wiki/Adapter_patternIt allows the interface of an existing class to be used as another interface.It is often used to make existing classes work with others without modifying their source code.Scenario: let an existing class work correctly based on other classes, and do not need to modify their source code.Example: Notebook power Adapter (Adapter), so that the notebook (client) work
Recently, when using PowerDesigner to connect remote Oracle for reverse engineering, there have been a number of problems that are common, mostly due to configurationDescription(1) Remote database version Q oracle11g 64bit(2) Local simultaneous installation:ORACLE11G Client 32bitoracle11g 64bit(3) Native installation PowerDesigner 15.2(3) Pre-preparation:Direct copy of ORACLE server%oracle_home%\network\admin\tnsnames.ora fileTo the ORACLE client%oracle_client%\network\admin\ directoryProblem:Is
First, IntroductionFrom today onwards we begin to talk about "structural" design patterns, "structural" design patterns are as follows: Adapter mode, bridge mode, decorative mode, combination mode, appearance mode, enjoy meta-mode, proxy mode. The "created" design pattern solves the problem of object creation, and the "structured" design pattern solves the problem of the combination of classes and objects. Today we start talking about the first design
Design Mode note Adapter mode Adapter
// Adapter mode ---- Class Object Structure Mode
/*
1: Intention:
Converts an interface of a class to another interface that the customer wants. The Adapter mode makes the original interface incompatible
Those classes that cannot work together can work together.
2: alias: Wrapper
?Adapter mode: the interface of a class is transformed into another interface that the customer expects, and the adapter lets the originally incompatible classes work together seamlessly.appearance mode: provides a unified interface for accessing a group of interfaces in a subsystem. The appearance defines a high-level interface that makes the subsystem easier to use.?Object adapter:Class
Why do I need adapter? Short answer: Simplifying"Event Source" can register (addxxxlistener) Listener object and Send event objectWindowListener listener = ...; Frame.addwindowlistener (listener);Specific event corresponding to a specific listener interface (Listener interface); Public Interface windowlistener{ void windowopened (windowevent e); void windowclosing (WindowEvent e);}In order to handle a particular event, the listener implements t
On the basis of custom ViewGroup (5): http://www.jb51.net/article/100639.htm, add the use of adapter to fit the data, which is more convenient, just use the adapter adapter data and cannot be updated.
Package com.example.libingyuan.horizontallistview.ScrollViewGroup;
Import Android.content.Context;
Import Android.util.AttributeSet;
Import Android.util.Displ
(New Operationadd, A, b);
Case "Minus": Return Context.getresult (New, Operationminus, A, b);
......
}
}
private static int GetResult (Operation ins, int a, int b) {return
ins.calculateresult (a,b);
}
In this way, our client code can be changed to:
public class customer{public
static void Main (Strings args[]) {The context
ins = new context ();
int result Ins.getresult ("add", 1,2);
}
Compare the client code for the previous s
? Adapter mode: Transforms the interface of one class into another interface that the customer wants. The adapter mode makes it possible for classes that are not working together because of incompatible interfaces.The adapter mode has two different forms: the class Adapter mode and the object
JavaScript Design Pattern Item9 -- Adapter pattern Adapter
Adapter mode (converter surface mode) is generally used for the interface, does not match the application or the system, and the intermediate Adaptation Layer class or object needs to be introduced. The adapter mode is used to solve the problem of interface inc
compositing instead of inheritance. Some behavioral object pattern descriptions describe how a set of peers can work together to complete a task in which either object cannot be completed alone.The creation pattern consists of: 1, FactoryMethod (factory method mode), 2, abstract Factory (Factory mode), 3, Singleton (singleton mode). 4, builder (builder mode, generator mode). 5, Prototype (prototype mode).The structure mode includes : 6, Bridge (bridging mode), 7,
One system wants to use another system's data source, but the data source format does not meet its own requirements, which can be used in adapter modeOne example: The data provided by the personnel system returns the map type, but the financial system needs a List type of dataData sources provided by the personnel system:1 ImportJava.util.HashMap;2 ImportJava.util.Map;3 4 Public classpeople {5 PublicMapGetorgname () {6MapNewHashmap();7Map.put (1
did not expect her wife to get angry. She told her that he was an unlearned hacker and never let him in again. And Shen's transfer plan ended in failure.
Ji Xiaolan thought, I can't say that I want to make an appointment with a girl like Shen. when I leave the house, I want to say that my wife loves listening. What I do is what I love and do what I do, in this way, both of them can be done. The following code is used:
Reading: The old lady thought she was going to study. She actually went o
The holes that use Holder in the Adapter, and the Adapter uses Holder
When using the GridView and ListView, Zookeeper usually uses Holder to cache each item in the Adapter to improve efficiency. However, if the Holder is not used properly, this caching mechanism will lead to many unexpected problems, I would like to sum up my experience to avoid further attacks i
Situation Description:Today in the writing of data display, using the ListView, in its adapter, found that the number of times the GetView method execution is the data item n times (my side of the display is 4 times times, this times the value does not know will change), this is obviously unscientific!Check the data and find the layout problem of the ListView. I set the android:layout_height= "wrap_content" Height to wrap_content. While the Wrap_conte
By using this method, you can connect a mobile device (iphone, ipad, or mobile phone) to the Internet through a wireless network card of a laptop.Microserof virtual wifi miniport adapter is a new feature of Windows 7, which is called virtual wifi.The virtual Wifi function in Windows 7 can Virtualize a network card based on a wireless network card, so that the AP function of the wireless router can be realized, and wireless devices can share the Intern
Design mode adapter mode (Adapter)
I want to say the adapter mode, it should be more appropriate to mention the "voltage", "headset", "Charger" and "USB" examples. Just talk about your personal experience, my original mobile phone is NOKIA5730. Later did not know there is no country, but do not recommend you buy this phone, not applicable Kazakhstan. When I bough
Copy CodeThe code is as follows:
/**
* Adapter Mode
*
* Convert a class's interface into another interface that the customer wants, using classes that are inherently incompatible to work with and can work together
*/
This is the original type.
Class Oldcache
{
Public Function __construct ()
{
echo "Oldcache construct
";
}
Public function Store ($key, $value)
{
echo "Oldcache Store
";
}
Public function Remove ($key)
{
echo "Oldcache remove
";
}
Pu
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