Data Annotation Attributes for Schema Configuraton [Table("Products")] public class Product { [Key] [Column("ProductKey")] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int ProductKey { get; set; } [Required] [StringLength(100)] public string ProductName { get; set...
Introduction to MyBatis Annotation Development MyBatis annotation-based development has become the preferred approach in modern Java projects, particularly those built with Spring Boot. This method allows developers to bypass the cumbersome XML configuration files and write data access layers in a m...
In Entity Framwork (EF) Code First development, a Complex Type is a class that serves as a container for properties but lacks its own identity (i.e., it does not have a primary key). Unlike standard entity types, complex types are not mapped to their own database tables. Instead, their properties ar...
Project Dependencies To begin using MyBatis with MySQL, add the following libraries to your build: <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.9</version> </dependency> <dependency> <groupId>mys...
Handling Column-to-Property Mapping in MyBatis When working with MyBatis, a common challenge arises when mapping database columns to Java entity properties. Database tables typicallly use snake_case naming (like emp_name), while Java POJOs follow camelCase convenitons (like empName). This article ex...
Hibernate provides two primary methods for retrieving objects from a database: session.get() and session.load(). These methods differ significantly in their loading behavior and performance characteristics. Load Method Behavior The load() method employs lazy loading. When envoked, it returns a proxy...
In database operations, we often need to retrieve auto-generated primary key values after inserting records. MyBatis provides two approaches to accomplish this: using the useGeneratedKeys attribute and the selectKey element. Using useGeneratedKeys Attribute The useGeneratedKeys attribute enables aut...
Introduction MyBatis serves as a persistence framework that simplifies database operations by eliminating repetitive tasks associated with traditional JDBC usage. It allows developers to focus more on business logic rather than boilerplate code, offering flexible SQL construction and result mapping...
Understanding design patterns theoretically often differs from observing their practical application in large-scale frameworks. While there are 23 standard patterns, developers frequently encounter them more clearly within mature source codebases like Mybatis. Analyzing these internals reveals how c...
Understanding Frameworks A framework is a reusable design structure that defines the architecture of an application, outlining dependencies, responsibilities, and control flow among components. It serves as a foundation upon which developers build applications, abstracting common functionalities to...