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Pagination is a common and essential feature in modern software development. It plays a crucial role in improving user experience and reducing server load. MyBatis Plus, an advanced ORM framework, provides an efficient and easy-to-use pagination feature that is widely adopted by developers. This article explores the implementation mechanism, te ...

A contiguous list relies on an array as its underlying storage. The elemnets occupy consecutive memory locations, and the logical order matches the physical layout. Unlike a plain array that may need sentinel values to determine usage, this structure tracks element count through an explicit size variable. The following sections walk through a p ...

The asynchronous flushing mechanism is implemented through a dedicated service that manages periodic data persistence. Here's the core implemantation: ``` public class AsyncDiskFlusher extends BaseFlushService { private long lastFlushTime = 0; @Override public String getServiceIdentifier() { return AsyncDiskFlusher.class.getSimpleName(); } ...

Craeting a custom exception class begins by extending the built-in Exception class. This allows you to define application-specific error conditions that can be thrown and caught programmatically. The following implementation demonstrates a custom exception that leverages the parent class constructor to store error messages: 1 public class Grade ...

Introduction to the Prototype Pattern When working with frameworks like Spring, you may be aware that beans are singleton by default, meaning a single instance is shared across all requests. However, Spring also supports other scopes, including scope="prototype", which creates a new instance for each request. This is the essence of th ...

Binary Tree Node Definition public class BinNode { int data; BinNode leftChild; BinNode rightChild; BinNode() {} BinNode(int data) { this.data = data; } BinNode(int data, BinNode leftChild, BinNode rightChild) { this.data = data; this.leftChild = leftChild; this.rightChild = rightCh ...

This article demonstrates how to integrate both JSP and Thymeleaf with Spring Boot, featuring a simple user CRUD (Create, Read, Update, Delete) example. Three separate project setups are covered: two standalone integrations and one combined project. Choose the relevant section based on your needs. Project source code is available via links at t ...

Object Cloning in Java Object cloning creates a new instance and copies field values from the original. This functionality becomes essential when you need independent copies of mutable objects. Java provides two distinct cloning strategies: shallow clone and deep clone. Shallow Clone Shallow cloning creates a new object and copies all primitive ...

The application follows a decoupled B/S architecture, leveraging Spring Boot for RESTful API provisioning and MySQL for relational data persistence. Entity-Relationship modeling adheres to third normal form, utilizing UTF-8 collation for consistent string handling across international deployments. Database Schema Design Core tables manage admin ...

The Singleton pattern restricts a class to a single instance and provides a global point of access to that instance. This pattern is characterized by a private constructor, a private static reference to the single instance, and a public static method (often named getInstance) that returns the instance. Eager Initialization In the eager initia ...