|
This version is still in development and is not considered stable yet. For the latest stable version, please use Spring Data Redis 3.4.0! |
CDI Integration
Instances of the repository interfaces are usually created by a container, for which Spring is the most natural choice when working with Spring Data. Spring offers sophisticated for creating bean instances. Spring Data Redis ships with a custom CDI extension that lets you use the repository abstraction in CDI environments. The extension is part of the JAR, so, to activate it, drop the Spring Data Redis JAR into your classpath.
You can then set up the infrastructure by implementing a CDI Producer for the RedisConnectionFactory and RedisOperations, as shown in the following example:
class RedisOperationsProducer {
@Produces
RedisConnectionFactory redisConnectionFactory() {
LettuceConnectionFactory connectionFactory = new LettuceConnectionFactory(new RedisStandaloneConfiguration());
connectionFactory.afterPropertiesSet();
connectionFactory.start();
return connectionFactory;
}
void disposeRedisConnectionFactory(@Disposes RedisConnectionFactory redisConnectionFactory) throws Exception {
if (redisConnectionFactory instanceof DisposableBean) {
((DisposableBean) redisConnectionFactory).destroy();
}
}
@Produces
@ApplicationScoped
RedisOperations<byte[], byte[]> redisOperationsProducer(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<byte[], byte[]> template = new RedisTemplate<byte[], byte[]>();
template.setConnectionFactory(redisConnectionFactory);
template.afterPropertiesSet();
return template;
}
}The necessary setup can vary, depending on your JavaEE environment.
The Spring Data Redis CDI extension picks up all available repositories as CDI beans and creates a proxy for a Spring Data repository whenever a bean of a repository type is requested by the container.
Thus, obtaining an instance of a Spring Data repository is a matter of declaring an @Injected property, as shown in the following example:
class RepositoryClient {
@Inject
PersonRepository repository;
public void businessMethod() {
List<Person> people = repository.findAll();
}
}A Redis Repository requires RedisKeyValueAdapter and RedisKeyValueTemplate instances.
These beans are created and managed by the Spring Data CDI extension if no provided beans are found.
You can, however, supply your own beans to configure the specific properties of RedisKeyValueAdapter and RedisKeyValueTemplate.
