Spring: 2 Repositories out of a single Entity - spring

Question

What I need is 2 Repositories created out of a single entity:
interface TopicRepository implements ReactiveCrudRepository<Topic, String>
interface BackupTopicRepository implements ReactiveCrudRepository<Topic, String>
How is that possible? Right now only one is created.

Answer 1

This is how you would do it.
#Configuration
#ConfigurationProperties(prefix = "mongodb.topic")
#EnableMongoRepositories(basePackages = "abc.def.repository.topic", mongoTemplateRef = "topicMongoTemplate")
#Setter
class TopicMongoConfig {
private String host;
private int port;
private String database;
#Primary
#Bean(name = "topicMongoTemplate")
public MongoTemplate topicMongoTemplate() throws Exception {
final Mongo mongoClient = createMongoClient(new ServerAddress(host, port));
return new MongoTemplate(mongoClient, database);
}
private Mongo createMongoClient(ServerAddress serverAddress) {
return new MongoClient(serverAddress);
}
}
Another configuration
#Configuration
#ConfigurationProperties(prefix = "mongodb.backuptopic")
#EnableMongoRepositories(basePackages = "abc.def.repository.backuptopic", mongoTemplateRef = "backupTopicMongoTemplate")
#Setter
class BackupTopicMongoConfig {
private String host;
private int port;
private String database;
#Primary
#Bean(name = "backupTopicMongoTemplate")
public MongoTemplate backupTopicMongoTemplate() throws Exception {
final Mongo mongoClient = createMongoClient(new ServerAddress(host, port));
return new MongoTemplate(mongoClient, database);
}
private Mongo createMongoClient(ServerAddress serverAddress) {
return new MongoClient(serverAddress);
}
}
Your TopicRepository and BackuoTopicRepository should reside in abc.def.repository.topic and abc.def.repository.backuptopic respectively.
And also you need to have these properties defined in your properties or yml file
mongodb:
topic:
host:
database:
port:
backuptopic:
host:
database:
port:
Lastly, disable springboot autoconfiguration for mongo.
#SpringBootApplication(exclude = {MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})