spring-data-commons

Introduction to Spring Data Commons

Spring Data Commons is an essential project within the larger Spring Data umbrella. It serves as a shared infrastructure and foundation for multiple Spring Data projects, offering technology-neutral repository interfaces and a comprehensive metadata model for persisting Java classes. This project is integral to the consistency and efficiency found across the Spring Data portfolio.

Key Features

1. Repository and Object-Mapping Abstractions: Spring Data Commons provides powerful abstractions for repositories and object mapping. This allows developers to handle data persistence through a consistent API, regardless of the underlying database technology.

2. Cross-Store Persistence Support: The project supports the integration of various storage technologies, enabling cross-store persistence that can combine multiple storage techniques.

3. Dynamic Query Generation: Spring Data Commons facilitates the automatic generation of queries from method names, thereby minimizing the need for manual query writing and reducing boilerplate code in applications.

4. Base Classes for Domain Models: It provides base classes for domain models that include essential properties, streamlining development by pre-defining common attributes.

5. Transparent Auditing: The framework supports auditing features, such as tracking when an entity was created or last modified, without requiring additional code from developers.

6. Custom Repository Integration: Users can integrate custom repository code, allowing for specific enhancements or alterations that meet the unique needs of their application.

7. Seamless Spring Integration: There is easy integration with Spring through a custom namespace, ensuring that Spring Data Commons aligns well with other Spring projects.

Code of Conduct

Spring Data Commons adheres to the Spring Code of Conduct, promoting a respectful and open community atmosphere. Participants in the project are expected to follow this code, and any inappropriate behavior can be reported to the designated contact.

Getting Started

For those looking to integrate Spring Data Commons into their projects, it can be easily added as a Maven dependency. For developers interested in the latest features, snapshots of the upcoming versions are also available through the Maven snapshot repository.

Maven Configuration for Stable Release

<dependency>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-commons</artifactId>
  <version>${version}</version>
</dependency>

Maven Configuration for Snapshot Release

<dependency>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-commons</artifactId>
  <version>${version}-SNAPSHOT</version>
</dependency>

<repository>
  <id>spring-snapshot</id>
  <name>Spring Snapshot Repository</name>
  <url>https://repo.spring.io/snapshot</url>
</repository>

Assistance and Support

For anyone having issues with Spring Data, there are numerous resources available:

• Spring.io contains comprehensive reference documentation and guides.
• The community is active on StackOverflow with the spring-data tag for questions.
• Real-time discussions can occur on Gitter in the spring-projects channel.
• Bugs and issues should be reported on the GitHub issues page for Spring Data Commons.

Reporting Issues

Spring Data Commons utilizes GitHub for tracking issues. Users are encouraged to search the existing issues before reporting new ones, providing detailed information including Spring Data version and Java JVM version used. Ideally, a test case or project replicating the issue helps in resolving it more efficiently.

Building from Source

While not necessary for using Spring Data, building from source allows experimentation with the latest changes. The project can be built using the Maven wrapper and requires JDK 17 or higher. For contributing code, submitting pull requests involves reading the CONTRIBUTING.adoc guidelines and signing the Contributor’s Agreement for substantive contributions.

License

Spring Data Commons is open-source, released under the Apache 2.0 license, which ensures it is freely available for both personal and commercial use.