The primary goal of the Spring Data project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud based data services.
The Apache Cassandra NoSQL Database offers many new capabilities for teams seeking a solution to handle high velocity, high volume and variable data flows. This new way of thinking introduces new concepts and a learning curve that can be intimidating to team members and team managers. Spring Data for Apache Cassandra offers a familiar interface to those who have used other Spring Data modules in the past.
The learning curve for developing applications with Apache Cassandra is significantly reduced when using Spring Data for Apache Cassandra. With the power to stay at a high level with annotated POJOs, or at a low level with high performance data ingestion capabilities, the Spring Data for Apache Cassandra templates are sure to meet every application need.
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Build repositories based on common Spring Data interfaces
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Support for synchronous, reactive, and asynchronous data operations
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Support for XML based Keyspace creation and CQL Table creation
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JavaConfig and XML Support for all Cluster and Session Capabilities
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Exception Translation to the familiar Spring DataAccessException hierarchy
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Convenient QueryBuilders to eliminate the need to learn CQL
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Automatic implementation of Repository interfaces including support for custom query methods
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Based on the 4.x DataStax CQL Java Driver
This project is governed by the Spring Code of Conduct. By participating, you are expected to uphold this code of conduct. Please report unacceptable behavior to [email protected].
Here is a quick teaser of an application using Spring Data Repositories in Java:
public interface PersonRepository extends CrudRepository<Person, Long> {
List<Person> findByLastname(String lastname);
List<Person> findByFirstnameLike(String firstname);
}
@Service
public class MyService {
private final PersonRepository repository;
public MyService(PersonRepository repository) {
this.repository = repository;
}
public void doWork() {
repository.deleteAll();
Person person = new Person();
person.setFirstname("Matthew");
person.setLastname("Adams");
repository.save(person);
List<Person> lastNameResults = repository.findByLastname("Adams");
List<Person> firstNameResults = repository.findByFirstnameLike("M*");
}
}
@Configuration
@EnableCassandraRepositories
class ApplicationConfig extends AbstractCassandraConfiguration {
@Override
public String getContactPoints() {
return "localhost";
}
@Override
protected String getKeyspaceName() {
return "springdata";
}
}Add the Maven dependency:
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-cassandra</artifactId>
<version>${version}</version>
</dependency>If you’d rather like the latest snapshots of the upcoming major version, use our Maven snapshot repository and declare the appropriate dependency version.
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-cassandra</artifactId>
<version>${version}-SNAPSHOT</version>
</dependency>
<repository>
<id>spring-snapshot</id>
<name>Spring Snapshot Repository</name>
<url>https://repo.spring.io/snapshot</url>
</repository>Having trouble with Spring Data? We’d love to help!
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Check the reference documentation, and Javadocs.
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Learn the Spring basics – Spring Data builds on Spring Framework, check the spring.io web-site for a wealth of reference documentation. If you are just starting out with Spring, try one of the guides.
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Ask a question - we monitor stackoverflow.com for questions tagged with
spring-data-cassandra. You can also chat with the community on Gitter. -
Report bugs with Spring Data for Apache Cassandra at github.com/spring-projects/spring-data-cassandra/issues.
Spring Data uses GitHub as issue tracking system to record bugs and feature requests. If you want to raise an issue, please follow the recommendations below:
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Before you log a bug, please search the issue tracker to see if someone has already reported the problem.
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If the issue does not already exist, create a new issue.
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Please provide as much information as possible with the issue report, we like to know the version of Spring Data that you are using and JVM version.
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If you need to paste code, or include a stack trace use Markdown ``` escapes before and after your text.
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If possible try to create a test-case or project that replicates the issue. Attach a link to your code or a compressed file containing your code.
You don’t need to build from source to use Spring Data (binaries in repo.spring.io), but if you want to try out the latest and greatest, Spring Data can be easily built with the maven wrapper. You also need JDK 17.
$ ./mvnw clean installIf you want to build with the regular mvn command, you will need Maven v3.8.0 or above.
Also see CONTRIBUTING.adoc if you wish to submit pull requests, and in particular please sign the Contributor’s Agreement before your first non-trivial change.
Spring Data for Apache Cassandra was initially created and supported by the following companies and individuals:
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Prowave Consulting - David Webb
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SciSpike - Matthew Adams
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John McPeek
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Spring Data Examples contains example projects that explain specific features in more detail.
Spring Data for Apache Cassandra is Open Source software released under the Apache 2.0 license.
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