Spring Data DynamicInsert Annotation Example

1. Introduction Spring Data JPA supports common JPA providers, e.g. Hibernate, EclipseLink, etc. Hibernate pre-generates and caches static SQL insert…

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Implementing an Elasticsearch Aggregation Query in Java

Elasticsearch is a distributed search engine that is designed for scalability, flexibility, and high performance. It allows us to store,…

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Finding the Max Value in Spring Data JPA

When working with Spring Data JPA, retrieving specific values from a database is a common requirement. One such requirement is…

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Using Enum in Spring Data JPA Queries

When constructing our persistence layer using Spring Data JPA, we frequently deal with entities that contain enum fields. These enum…

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Spring JPA LIKE Query Example With JdbcTemplate or JpaRepository

LIKE queries in SQL allow users to search for specified patterns in the database table columns, enabling flexible and dynamic…

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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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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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Test Repository with @DataJpaTest and JUnit

1. Introduction In today’s software development landscape, ensuring the reliability and correctness of applications is paramount. Testing plays a crucial…

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Java Application with Neo4j: How to use Spring custom queries and projections

We previously built a Java application on a Neo4j graph database. Now we can take this further by exploring custom…

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