Update By Query in Elasticsearch using Java

Question

I’m currently using Elasticsearch V2.3.1. I want to use the following Elasticsearch query in Java.

POST /twitter/_update_by_query
{
  "script": {
    "inline": "ctx._source.List = [‘Item 1’,’Item 2’]”
  },
  "query": {
    "term": {
      "user": "kimchy"
    }
  }
}

The above query searches for “user” named “kimchy” and updates the “List” field with given values. This query updates multiple documents at the same time. I read about the Update API for Java here https://www.elastic.co/guide/en/elasticsearch/client/java-api/2.3/java-docs-update.html but couldn’t find what I was looking for. The Update API for Java only talks about updating single document at a time. Is there any way to update multiple documents? Sorry if I’m missing something obvious. Thank you for your time.

Update:

I tried the below Java Code:

Client client = TransportClient.builder().addPlugin(ReindexPlugin.class)
    .build().addTransportAddress(new InetSocketTransportAddress(
        InetAddress.getByName("127.0.0.1"), 9300));

UpdateByQueryRequestBuilder ubqrb = UpdateByQueryAction.INSTANCE
    .newRequestBuilder(client);

Script script = new Script("ctx._source.List = [\"Item 1\",\"Item 2\"]");

//termQuery is not recognised by the program
BulkIndexByScrollResponse r = ubqrb.source("twitter").script(script)
    .filter(termQuery("user", "kimchy")).execute().get();

So I edited the Java Program as above and the termQuery is not identified by Java. May I know what I'm doing wrong here? Thanks.

Val · Accepted Answer · 2016-06-27 09:47:08Z

16

As of ES 2.3, the update by query feature is available as the REST endpoint _update_by_query but nor for Java clients. In order to call this endpoint from your Java client code, you need to include the reindex module in your pom.xml, like this

<dependency>
    <groupId>org.elasticsearch.module</groupId>
    <artifactId>reindex</artifactId>
    <version>2.3.2</version>
</dependency>

Then you need to include this module when building your client:

clientBuilder.addPlugin(ReindexPlugin.class);

Finally you can call it like this:

UpdateByQueryRequestBuilder ubqrb = UpdateByQueryAction.INSTANCE.newRequestBuilder(client);

Script script = new Script("ctx._source.List = [\"Item 1\",\"Item 2\"]");

BulkIndexByScrollResponse r = ubqrb.source("twitter")
    .script(script)
    .filter(termQuery("user", "kimchy"))
    .get();

UPDATE

If you need to specify the type(s) the update should focus on, you can do so:

ubqrb.source("twitter").source().setTypes("type1");
BulkIndexByScrollResponse r = ubqrb.script(script)
    .filter(termQuery("user", "kimchy"))
    .get();

edited Jun 27, 2016 at 9:47

answered May 5, 2016 at 3:49

Val

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13 Comments

Val Over a year ago

You need to add import static org.elasticsearch.index.query.QueryBuilders.termQuery;

A Coder Gamer Over a year ago

Hi @Val, it worked but this way(using filter in BulkIndexByScrollResponse) I can only update one document that has a user named "Kimchy". Is it possible to update multiple documents using setQuery in BulkIndexByScrollResponse? or possibly any other way?

Val Over a year ago

Of course, you can craft any kind of query. That was just an example. What's your query?

Tushar garg Over a year ago

Hi @Val, Is their a way to set the doc type in this type of query.

Adam Libuša Over a year ago

Just a hint for those who'd use ES version 5.5.0 or similar: The plugin has to be added as a second parameter in PreBuiltTransportClient's constructor.

|

Usman · Accepted Answer · 2020-09-14 12:33:54Z

3

In ES 7.9 this also works using UpdateByQueryRequest

Map<String, Object> map = new HashMap<String, Object>();

UpdateByQueryRequest updateByQueryRequest = new UpdateByQueryRequest("indexName");
updateByQueryRequest.setConflicts("proceed");
updateByQueryRequest.setQuery(new TermQueryBuilder("_id", documentId));
Script script = new Script(ScriptType.INLINE, "painless",
        "ctx._source = params", map);
updateByQueryRequest.setScript(script);

answered Sep 14, 2020 at 12:33

Usman

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