Enterprise Java
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PostgreSQL – Recursive CTEs
Common Table Expressions (CTEs) are a powerful feature in SQL that allows you to create temporary result sets that can…
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Manage Kafka Listeners Dynamically in Spring Boot
In contemporary event-driven architectures, proficient management of data streams is paramount. Apache Kafka stands out as a favored solution for…
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Querydsl vs. JPA Criteria
Querydsl and JPA Criteria are widely used frameworks for creating type-safe queries in Java. Both offer methods to express queries…
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Hibernate Subselect Annotation
1. Introduction Hibernate is an open source object relational mapping (ORM) tool that provides a framework to map object-oriented domain…
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Retrieving Lists of Entities from a Database Using Hibernate
Hibernate is a powerful Object-Relational Mapping (ORM) framework for Java that simplifies the interaction between an application and a database…
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Refresh and Fetch an Entity After Save in Spring Data JPA
The Java Persistence API (JPA) serves as a connector linking Java objects and relational databases, facilitating the smooth persistence and…
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Spring Prototype Beans with Runtime Arguments
Spring offers various bean scopes, with the default being singleton, which creates a single instance throughout the application. Prototype scope,…
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Autowire Spring Bean in Servlet Filter
Servlet filters provide a powerful way to intercept and manipulate incoming requests. However, accessing Spring-managed beans within these filters can…
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Implement Two-Level Cache With Spring
Caching is a technique used to store data temporarily in a faster storage layer to improve the performance and responsiveness…
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