Tag：Adapter
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Structural design mode of detailed design mode — adapter and decorator
Structural design mode Creative design pattern is mainly to solve the problem of creating objects, while structural design pattern is to solve the problem of using existing objects. Adapter mode The adapter mode is easy to understand because it is very common in our daily life, such as headphone conversion cable, charger adapter, socket, etc. […]
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How chainlink realizes “universal plug” — development and application of external adapter
background The API in the Ethernet middle note language solidity can be used to transfer the data under the chain to the intelligent contract application on the chain. Developers around the world can use chainlink’s decentralized blockchain Oracle to access real-world data and events under the chain into the blockchain environment. Chainlink’s built-in core adapter […]
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Set static IP for Ubuntu virtual machine (windows can ping Ubuntu virtual machine)
Windows Ping can connect the virtual machine through xshell, and then operate the virtual machine conveniently through xshell.As a virtual machine, RZ files can be copied and pasted to the virtual machine and transferred to the intranet 1. Check the IP and gateway of windows Use in Windows CMDipconfigcommand Note that there is a lot […]
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Ethernet doesn’t have a valid IP configuration in Windows 10
There was a problem in the network environment before, which made it impossible to automatically obtain the IP address through DHCP. Later, according to the gradual troubleshooting of the problem, we found some corresponding solutions and successfully restored the normal network environment. > ping 127.0.0.1 Try to loop back the routing request and check whether […]
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Go implementation common design patterns (IV) adapter pattern
Adapter mode The adapter is suitable for solving the compatibility problem between old and new systems (or old and new interfaces), and it is not recommended to use it directly from the beginning Intent:The adapter pattern transforms the interface of a class into another interface expected by the customer. The adapter allows classes with incompatible […]
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React (TS) builds the jest + enzyme unit test framework
In fact, it is easy to complete the construction by referring to the official documents. Therefore, this paper is also a simple exercise of the test and construction process of the official website.https://jestjs.io/https://enzymejs.github.io/en… This paper is based on the process of typescript as react development language. Using JSX / JS does not need TS related […]
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How to improve the efficiency of Hadoop access object storage US3? We have done these technical practices
In the big data era of information explosion, how to solve the storage problem of massive data at a lower cost has become an important part of enterprise big data business. US3, a new generation of object storage service developed by ucloud, has launched a solution of computing storage separation and big data backup for […]
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Chapter 5 business logic design in micro service architecture
catalogue preface 1. Business logic organization mode 1.1 a typical service architecture 1.2 design business logic using transaction script mode 1.3 design business logic using domain model pattern 1.4 Domain Driven Design 2. Use aggregation pattern to design domain model 2.1 aggregation has clear boundaries 2.2 aggregation rules 2.3 particle size of polymerization 2.4 using […]
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Programming idea of C + + learning notes
catalogue Programming thought Singleton mode Observer mode Void *, null and nullptr Type conversion of C C + + type conversion Adapter mode The idea of generic programming template function template class Generic recursion Programming thought Singleton mode Realization idea: Singleton has oneprivate constructors To ensure that usersCannot directly instance via NewIt; Include oneStatic private […]
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Adapter pattern of PHP design pattern
There has always been a classic example of this mode, that is, socket! Yes, when we buy electrical appliances from abroad or travel abroad, we often need a power adapter, because the voltage standard in China is 220 volts, while other countries have 110 volts. This power adapter is a sign of adapter mode. When […]
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[learning demo] tablist + pageslider to achieve home page switching effect
Learn to use Hongmeng basic controls to achieve the tab effect at the top of news apps.First go to the demo diagram: image.png image.png Implementation steps: 1. Create a project using a template with its own open screen page; 2. Modify the main layout file, add tablist, pageslider control and related attribute settings of tablist, […]
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Springboot source code MVC workflow (in)
Dispatcher servlet processing flow The previous section talked about the spring container startup, which will save the mapping relationship between URL and class method. In this section, you can see its role. Dispatcher servlet is the core of the whole spring MVC, which is responsible for request processing and return response. Go straight to the […]