Spring Data Elasticsearch's ElasticsearchTemplate vs ElasticsearchRepository

Question

I am in reference to Spring Data Elasticsearch's

org.springframework.data.elasticsearch.repository.ElasticsearchRepository
org.springframework.data.elasticsearch.core.ElasticsearchTemplate

It seems they are two different APIs that achieve the same goal but I am not sure what the differences are between those two types and more importantly when to use which.

Can someone please provide advice and guidance?

Javier Alvarez · Accepted Answer · 2015-04-01 14:04:44Z

11

ElasticsearchRepository is intended to be used as a repository for your domain classes, as it's typed. It extends Spring interfaces for repositories so it can used as one of them. You'll feel very comfortable with it if you are used to Spring repositories.

All you need to start indexing your objects to Elasticsearch is to add the @Document annotation to them and create a Repository interface extending ElasticsearchRepository.

The indexable class:

@Document(
    indexName = "customers", 
    type = "customer", 
    shards = 1, 
    replicas = 0, 
    refreshInterval = "-1"
)
public class Customer {
    @Id
    private Long id;
    private String name;

    public Customer() { 
    }

    public Customer(String name) {
        this.name = name;
    }

    //Getters and setters omited
}

The repostitory:

public interface CustomerRepository 
    extends ElasticsearchRepository<Customer, Long>{
}

With this you can, out of the box, make CRUD operations, index, search and other common operations.

ElasticsearchTemplate, by other hand, is an elasticsearch client for working with your indexes, and it's not typed or related to your domain classes. It's more powerful since you can do many tasks not available to the repository implementation, like deleting an index or making aggregated searchs.

answered Apr 1, 2015 at 14:04

Javier Alvarez

1,4492 gold badges15 silver badges33 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

FabianTe Over a year ago

Is this still up to date? When running code thats the same as yours, Spring now tells me to add a bean called elasticsearchTemplate.

Mohamed Ali Over a year ago

I have the same issue. It asks me to add elasticsearchTemplate to my class? Do you know why?

Collectives™ on Stack Overflow

Spring Data Elasticsearch's ElasticsearchTemplate vs ElasticsearchRepository

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related