Querydsl Elasticsearch

The Elasticsearch module provides integration with the spring-data-elasticsearch library.

Maven integration

Add the following dependencies to your Maven project :

<dependency>
    <groupId>io.github.udev-tn</groupId>
    <artifactId>querydsl-elasticsearch</artifactId>
    <version>${querydsl-elasticsearch.version}</version>
</dependency>

Creating the query types

Code generation is currently accessible for Elasticsearch, pending approval of the pull request in the querydsl-apt repository.

Querying

Querying with Querydsl Elasticsearch is as simple as this:

QTweet qTweet = QTweet.tweet;

ElasticsearchOperations operations; // a bean initialized by spring-data-elasticsearch
ElasticsearchQuery query = new ElasticsearchQuery(operations, Tweet.class);
List<Document> documents = query
        .where(qTweet.views.between(2, 7).and(qTweet.title.startsWith("Breaking")))
        .limit(3)
        .offset(2)
        .fetch();

Enable Spring Data Repositories

• To use the querydsl elasticsearch repository with synchronized operations, you will need to inject the ElasticsearchQuerydslRepositoryFactoryBean.class into repositoryFactoryBeanClass within the @EnableElasticsearchRepositories annotation of your application. This allows for seamless integration and efficient querying within your Elasticsearch environment.

@SpringBootApplication
@EnableReactiveElasticsearchRepositories(repositoryFactoryBeanClass = io.udev.querydsl.elasticsearch.repository.support.ElasticsearchQuerydslRepositoryFactoryBean.class)
class ElasticsearchWithQuerydslSyncApplication {
    // application definition
}

• To use the querydsl elasticsearch repository with reactive operations, you will need to inject the ReactiveElasticsearchQuerydslRepositoryFactoryBean.class into repositoryFactoryBeanClass within the @EnableElasticsearchRepositories annotation of your application.

@SpringBootApplication
@EnableReactiveElasticsearchRepositories(repositoryFactoryBeanClass = io.udev.querydsl.elasticsearch.repository.support.ReactiveElasticsearchQuerydslRepositoryFactoryBean.class)
class ReactiveElasticsearchWithQuerydslApplication {
    // application definition
}

Following that, you have the opportunity to expand your repositories by using the elasticsearch querydsl contacts.

• For synchronized instances: ElasticsearchExecutor.java
• For reactive instances: ReactiveElasticsearchExecutor.java

Building from Source

You don't need to build from source to use Querydsl-elasticsearch (binaries available on mvnrepository.com), but if you want to test the most recent version, you can easily build querydsl-elasticsearch with the maven cli.

You need JDK 17 or above to build the main branch.

 mvn clean install