I have collection in MongoDB and I'm trying to generate text indexes using Spring annotations (@TextIndexed). I'm not creating database on application start, it's already created.
Problem is - indexes are not being added to my database.
Does annotation work only when you creating database after starting application?
Thanks.
Spring v. 4.3.2 MongoDB v. 4.0.1
"Does annotation work only when you creating the database after starting application"?
The answer is yes.
If the collection is already created, Spring data does not initialize the indexes. I had to make something like you want to do and the only solution I found was to do it using the MongoOperations instance.
@Autowired
private MongoOperations mongoOps;
@PostConstruct
public void initializeIndexesInDb(){
mongoOps.indexOps(YourDocumentClass.class).ensureIndex(new Index().on("fieldName", Direction.ASC));
}
on the latest release, you should follow
@Configuration
public class Config extends AbstractMongoClientConfiguration {
@Override
protected boolean autoIndexCreation() {
return true;
}
// ...
}
https://github.com/spring-projects/spring-data-mongodb/pull/845
With the most recent releases of Spring Boot, there should be a property spring.data.mongodb.auto-index-creation, which does all the magic. Even on existing databases and collections.
