Missing prepareSearch() method in RestHighLevelClient

Elastic Stack Elasticsearch
1

I am trying to use Aggregation API and for that documentation tells me to use

SearchResponse sr = node.client().prepareSearch()
        .setQuery( /* your query */ )
        .addAggregation( /* add an aggregation */ )
        .execute().actionGet();

But it does not tell me how to get the client object node.client()
RestHighLevelClient does not have a prepareSearch() method in 7.9.0. Then I tried upgrading to 7.12.1 but then I cannot find the class
org.elasticsearch.client.RestHighLevelClient
at all. I am really confused. Am I missing a library? I am using two dependencies:

		<dependency>
			<groupId>org.elasticsearch</groupId>
			<artifactId>elasticsearch</artifactId>
			<version>7.9.0</version>
		</dependency>
		<dependency>
			<groupId>org.elasticsearch.client</groupId>
			<artifactId>elasticsearch-rest-high-level-client</artifactId>
			<version>7.9.0</version>
		</dependency>

Also, the current documentation, e.g. Aggregations | Java API (deprecated) [7.12] | Elastic, states that the doc is deprecated. Another very confusing thing. Can anybody shed some light on this?

2

Welcome!

The TransportClient is indeed deprecated. So you should look at the rest client documentation.

Specifically Search API | Java REST Client [7.12] | Elastic

I'm also sharing some few examples at:

HTH

3

What does the RestHighLevelClient class have to do with TransportCLient?
In your example you are using RestHighLevelClient...

4

As I said:

The TransportClient is indeed deprecated. So you should look at the rest client documentation.

Nothing.

Yes. That's the way to go.

1 Like
5

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