Java
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Database connection pooling is essential for optimizing application performance by efficiently managing database connections. HikariCP, known for its speed and lightweight footprint, is a preferred choice for Java applications using JDBC. This guide will show you how to implement HikariCP for efficient connection pooling in your Java project.
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Batch processing is a powerful feature in JDBC (Java Database Connectivity) that allows developers to execute multiple SQL statements efficiently in a single transaction. This technique significantly improves performance when dealing with bulk database operations, such as inserting or updating a large number of records.
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Pagination is essential when dealing with large datasets in databases. Instead of retrieving all records simultaneously, we can fetch data in smaller chunks using pagination techniques. In this article, we'll explore how to implement pagination efficiently with JDBC using a single SQL's LIMIT and OFFSET clauses also via the implementation of PageRequest and PageResponse objects.
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The DAO Factory Pattern is an advanced extension of the DAO (Data Access Object) Pattern that centralizes the creation and management of DAO instances. This approach improves flexibility, maintainability, and scalability in Java applications that interact with databases. It is particularly useful when working with multiple DAO implementations (e.g., JDBC, Hibernate, JPA).
Read more: DAO Factory Pattern: A Scalable Approach to Data Access in Java
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JDBC (Java Database Connectivity) is the standard API in Java that connects with relational databases. The ResultSet is a key component of JDBC, allowing developers to retrieve and process query results. Optimizing the handling of ResultSet can improve performance and ensure efficient resource management.
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The DAO (Data Access Object) pattern is a structural pattern used to separate the persistence logic from the business logic. It provides an abstraction layer for data access and ensures that changes in the underlying database do not affect the business logic.
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Mockito is a powerful Java framework used for unit testing by creating mock objects. It helps developers isolate components of a system, making testing easier, faster, and more reliable. In this tutorial, we'll cover the basics of using Mockito, including creating mocks, stubbing methods, verifying behavior, and more.
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Mockito is a popular Java framework used for creating mock objects in unit tests. It enables developers to isolate components in a system by mocking dependencies, making it easier to write clean and reliable tests. Here's a comprehensive overview of Mockito:
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In Mockito, you cannot directly verify if a method of a superclass was called. Mockito works with mocks and spies to verify interactions with specific methods, but it doesn't have built-in support for verifying calls to superclass methods.
Read more: Mockito how can check if was called method from superclass
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GraalVM is a universal virtual machine designed to improve the performance and interoperability of programming languages. It is developed by Oracle Labs. GraalVM provides high-performance runtime support for Java, JavaScript, Python, Ruby, and other languages, along with the ability to run native code.