Spring Data JPA
Spring Data JPA is a Spring module that provides repository abstractions and query support for accessing relational data through JPA implementations.
Java Persistence with Spring Data and Hibernate epub
Spring Data JPA is a Spring Data module that adds repository and query-generation support on top of JPA implementations.
- How it is used
- Provides repository-based CRUD and query access to relational databases through a JPA provider.
- How deep it goes
- Works through configuration, a repository interface, proxy-generated methods, and a save-and-load test; retains JPA entity mapping.
- Examples
- Uses a message repository that saves and retrieves an entity, plus Spring Boot projects backed by MySQL.
- What you can do after
- Apply it via Spring Data JPA to configure a project, declare a repository, and store and load mapped entities.
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Troubleshooting Java, Second Edition
Spring Data JPA is a Spring-based library that provides repository abstractions for accessing relational data through Java Persistence API implementations.
- How it is used
- Uses repository abstractions while investigating SQL generated behind application code.
- How deep it goes
- Explains repository-based query generation and profiler interception, then stops short of repository implementation internals.
- Examples
- Uses a ProductRepository, a products endpoint, generated SQL, and repeated calls optimized to one execution.
- What you can do after
- Diagnose/debug with it by extracting generated SQL, checking execution counts, and testing suspicious queries in a SQL client.
Read how Troubleshooting Java, Second Edition explains Spring Data JPA →
Related concepts
- JPAuses · JPA, now Jakarta Persistence, is a Java standard for mapping objects to relational data and managing their persistence.
- Spring Datapart of · Spring Data is a family of Spring projects that provides repository-based abstractions for accessing and persisting data across relational and nonrelational stores.
- proxyproduces · A proxy is an intermediary object or component that represents another object or system and mediates interactions with it.
- query builderuses · A query builder is a programmatic interface for constructing database queries from composable operations rather than manually assembled query text.
- JPA implementationuses · A JPA implementation is software that implements the Java Persistence API for mapping objects to relational data and performing persistence operations.
- Spring Bootconfigured by · Spring Boot is an open-source framework in the Spring ecosystem for building stand-alone, production-ready applications with convention-based configuration and auto-configuration.
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