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Auto-configure Elasticsearch REST client in Spring Data

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This commit auto-configures the Elasticsearch REST client support
as a template for Spring Data Elasticsearch. As of this commit,
using the transport client is still possible but developers
should migrate.

This commit also removes the deprecated annotation on the
Elasticsearch auto-configuration for the transport client, since
this deprecation notice is already present on the configuration
property.

Closes gh-17024
Closes gh-16542
This commit is contained in:
Brian Clozel
2019-06-03 21:20:06 +02:00
parent ae5b5be597
commit c74badd4f2
9 changed files with 216 additions and 153 deletions
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17
spring-boot-project/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc
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@@ -4932,15 +4932,16 @@ To take full control over the registration, define a `JestClient` bean.
[[boot-features-connecting-to-elasticsearch-spring-data]]
==== Connecting to Elasticsearch by Using Spring Data
To connect to Elasticsearch, you must provide the address of one or more cluster nodes.
The address can be specified by setting the `spring.data.elasticsearch.cluster-nodes`
To connect to Elasticsearch, you must provide the address of one or more Elasticsearch
instances. The address can be specified by setting the `spring.elasticsearch.rest.uris`
property to a comma-separated `host:port` list. With this configuration in place, an
`ElasticsearchTemplate` or `TransportClient` can be injected like any other Spring bean,
`ElasticsearchRestTemplate` or `RestHighLevelClient` can be injected like any other Spring bean,
as shown in the following example:
[source,properties,indent=0]
----
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.elasticsearch.rest.uris=localhost:9200
----
[source,java,indent=0]
@@ -4948,9 +4949,9 @@ as shown in the following example:
@Component
public class MyBean {
private final ElasticsearchTemplate template;
private final ElasticsearchRestTemplate template;
public MyBean(ElasticsearchTemplate template) {
public MyBean(ElasticsearchRestTemplate template) {
this.template = template;
}
@@ -4959,8 +4960,8 @@ as shown in the following example:
}
----
If you add your own `ElasticsearchTemplate` or `TransportClient` `@Bean`, it replaces the
default.
If you add your own `ElasticsearchRestTemplate` or `ElasticsearchOperations` `@Bean`,
it replaces the default given it is named `"elasticsearchTemplate""`.