we will dive into practical coding examples to explore the capabilities and versatility of the Java 8 Stream API. This page will provide hands-on demonstrations of various operations that can be performed using streams, showcasing how this powerful feature simplifies complex data manipulation tasks. By following along with our examples, you’ll gain a deeper understanding […]
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Introduction Spring AOP (Aspect Oriented Programming) compliments OOPs as it also provides modularity. But The key unit of modularity in OOP is the class, whereas in AOP the unit of modularity is the aspect. AOP breaks the program logic into distinct parts (called concerns). It is used to increase modularity by cross-cutting concerns such as transaction management,
Welcome to our comprehensive guide on Multithreading and Synchronization! In this page, we will delve into the fascinating world of concurrent programming and explore the essential concepts, techniques, and best practices for effectively managing multiple threads in your applications. Multithreading is a powerful paradigm that allows programs to execute multiple tasks concurrently, thereby utilizing the
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A semaphore controls access to a shared resource through the use of a counter. What the counter is counting are permits that allow access to the shared resource. Thus, to access the resource, a thread must be granted a permit from the semaphore. Synchronized allows only one thread of execution to access the resource at the same time. Semaphore
The lock interface is one of the most used interfaces in Java. Lock interface is available in the Java.util.concurrent.locks package which we use as a thread synchronization mechanism, i.e., similar to synchronized blocks. It is more flexible and provides more options in comparison to the synchronized block. It allows us to gain the benefit of fine-grained locking without having
Java 7 introduced the fork/join framework. It is among the simplest and most effective design techniques for obtaining good parallel performance. Fork/join algorithms are parallel versions of familiar divide−and−conquer algorithms. The fork operation starts a new parallel fork/join subtask. The join operation causes the current task not to proceed until the forked subtask has completed.
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41. What is the role of web and RESTful APIs in Microservices?A microservice architecture is based on a concept wherein all its services should be able to interact with each other to build a business functionality. So, to achieve this, each microservice must have an interface. This makes the web API a very important enabler
31. How to maintain ACID transactions in Microservices?ACID is an acronym for four primary attributes namely atomicity, consistency, isolation, and durability ensured by the database transaction manager. In a distributed system involving multiple databases, we have two options to achieve ACID compliance: 2 Phase Commit should ideally be discouraged in microservices architecture due to its
11. How can we test the Microservices based architecture?One should have unit and integration tests where all the functionality of a microservice can be tested. One should also have component based testing.One should have contract tests to assert that the expectations by the client is not breaking. End-to-end test for the microservices, however, should only
41. Differentiate between WebClient and WebTestClient?The difference between the Web client and Webtestclient can be stated as follows. Web client Webtestclient Web client acts as a reactive client who performs non-blocking HTTP requests. Webtestclient also acts as a reactive client that can be used in tests. It can handle reactive streams with backpressure. It can
