Spring Data JPA Articles
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How to Implement Optimistic Locking (@Version) with JPA in Spring Boot to Prevent Concurrent Update Conflicts
Learn how to prevent 'Lost Update' issues that occur in e-commerce inventory updates and reservation systems using the @Version annotation. Covers OptimisticLockException handling, retry strategies with Spring Retry, and writing concurrency tests with practical code examples.
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How to Implement Dynamic Queries with Spring Data JPA Specifications - Supporting Search Form Filtering
An implementation guide for building type-safe dynamic queries using the Spring Data JPA Specification pattern for forms with optional search conditions. Covers the basic setup of JpaSpecificationExecutor, AND/OR combination of multiple conditions, and pagination integration with real code examples.
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How to Solve the N+1 Problem in Spring Data JPA - When to Use @EntityGraph vs JOIN FETCH
A practical guide covering how to detect the N+1 problem in Spring Data JPA and how to resolve it using @EntityGraph and JOIN FETCH with real examples. Covers Lazy/Eager Loading configuration and batch fetch optimization techniques useful in production environments.
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How to Automatically Record Created and Updated Timestamps with JPA Auditing in Spring Boot
A guide to automatically recording entity creation and update timestamps using JPA Auditing in Spring Boot. Covers practical code for configuring @CreatedDate, @LastModifiedDate, @EnableJpaAuditing, and AuditorAware, including integration with Spring Security.
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Spring Data JPA Query Methods: Naming Conventions and Examples
Master Spring Data JPA query method naming conventions — findBy, existsBy, countBy, and more. Covers multiple conditions, sorting, pagination, and @Query with practical examples.