Problem initializing Reactor Redis with Spring Boot - spring

Question

I am trying to get Reactive Redis working with existing application that has normal syncronous Redis implementation running. I can't change all the implementation at once, so I'm trying to get them both work at the same time.
This is what I have previously.
#Configuration
#ConfigurationProperties(prefix = "app.redis")
public class MemoryCacheConfiguration {
private String endpoint;
private int port;
#Bean
JedisConnectionFactory jedisConnectionFactory() {
return new JedisConnectionFactory(new RedisStandaloneConfiguration(this.endpoint, this.port));
}
#Bean
public RedisTemplate<String, String> redisTemplate() {
final RedisTemplate<String, String> template = new RedisTemplate<>();
template.setConnectionFactory(jedisConnectionFactory());
template.setKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(new GenericToStringSerializer<>(Serializable.class));
template.setValueSerializer(new GenericToStringSerializer<>(Serializable.class));
return template;
}
}
This is what I'm adding to the file
#Bean
public ReactiveRedisConnectionFactory reactiveRedisConnectionFactory() {
return new LettuceConnectionFactory(endpoint, port);
}
#Bean
public ReactiveRedisTemplate<String, String> reactiveRedisTemplate(ReactiveRedisConnectionFactory factory) {
RedisSerializationContext.RedisSerializationContextBuilder<String, String> builder =
RedisSerializationContext.newSerializationContext(new StringRedisSerializer());
RedisSerializationContext<String, String> context =
builder.value(new StringRedisSerializer()).build();
return new ReactiveRedisTemplate<>(factory, context);
}
If I have ReactiveRedisTemplate in the file defined, I'm getting following error about the duplicate
org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.data.redis.core.ReactiveRedisTemplate<java.lang.String, java.lang.String>' available: expected single matching bean but found 2: reactiveRedisTemplate,reactiveStringRedisTemplate
However, if I remove the definition so that it is blank, I'm getting the following.
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.data.redis.core.ReactiveRedisTemplate<java.lang.String, java.lang.String>' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
What might be the reason for this, as I haven't defined any reactiveStringRedisTemplate and there is no reference to it in my project, but if I remove my custom one, then it doesn't find any Bean required.
I am using Spring Boot version 2.7.3.

Answer 1

It helped that naming the bean properly where it was used so that it detected the correct template.
As I had this:
private final ReactiveRedisTemplate<String, String> redisReactorTemplate;
#Autowired
public RedisService(ReactiveRedisTemplate<String, String> redisReactorTemplate) {
this.redisReactorTemplate = redisReactorTemplate;
}
Instead of this:
private final ReactiveRedisTemplate<String, String> reactiveRedisTemplate;
#Autowired
public RedisService(ReactiveRedisTemplate<String, String> reactiveRedisTemplate) {
this.redisReactorTemplate = reactiveRedisTemplate;
}
I don't know the reason it has two possible beans at that point though (expected single matching bean but found 2: reactiveRedisTemplate,reactiveStringRedisTemplate).