This version is still in development and is not considered stable yet. For the latest stable version, please use Spring Data Elasticsearch 5.4.1!

Upgrading from 4.2.x to 4.3.x

This section describes breaking changes from version 4.2.x to 4.3.x and how removed features can be replaced by new introduced features.

Elasticsearch is working on a new Client that will replace the RestHighLevelClient because the RestHighLevelClient uses code from Elasticsearch core libraries which are not Apache 2 licensed anymore. Spring Data Elasticsearch is preparing for this change as well. This means that internally the implementations for the *Operations interfaces need to change - which should be no problem if users program against the interfaces like ElasticsearchOperations or ReactiveElasticsearchOperations. If you are using the implementation classes like ElasticsearchRestTemplate directly, you will need to adapt to these changes.

Spring Data Elasticsearch also removes or replaces the use of classes from the org.elasticsearch packages in it’s API classes and methods, only using them in the implementation where the access to Elasticsearch is implemented. For the user that means, that some enum classes that were used are replaced by enums that live in org.springframework.data.elasticsearch with the same values, these are internally mapped onto the Elasticsearch ones.

Places where classes are used that cannot easily be replaced, this usage is marked as deprecated, we are working on replacements.

Check the sections on Deprecations and Breaking Changes for further details.

Deprecations

suggest methods

In SearchOperations, and so in ElasticsearchOperations as well, the suggest methods taking a org.elasticsearch.search.suggest.SuggestBuilder as argument and returning a org.elasticsearch.action.search.SearchResponse have been deprecated. Use SearchHits<T> search(Query query, Class<T> clazz) instead, passing in a NativeSearchQuery which can contain a SuggestBuilder and read the suggest results from the returned SearchHit<T>.

In ReactiveSearchOperations the new suggest methods return a Mono<org.springframework.data.elasticsearch.core.suggest.response.Suggest> now. Here as well the old methods are deprecated.

Breaking Changes

Removal of org.elasticsearch classes from the API.

  • In the org.springframework.data.elasticsearch.annotations.CompletionContext annotation the property type() has changed from org.elasticsearch.search.suggest.completion.context.ContextMapping.Type to org.springframework.data.elasticsearch.annotations.CompletionContext.ContextMappingType, the available enum values are the same.

  • In the org.springframework.data.elasticsearch.annotations.Document annotation the versionType() property has changed to org.springframework.data.elasticsearch.annotations.Document.VersionType, the available enum values are the same.

  • In the org.springframework.data.elasticsearch.core.query.Query interface the searchType() property has changed to org.springframework.data.elasticsearch.core.query.Query.SearchType, the available enum values are the same.

  • In the org.springframework.data.elasticsearch.core.query.Query interface the return value of timeout() was changed to java.time.Duration.

  • The SearchHits<T>`class does not contain the `org.elasticsearch.search.aggregations.Aggregations anymore. Instead it now contains an instance of the org.springframework.data.elasticsearch.core.AggregationsContainer<T> class where T is the concrete aggregations type from the underlying client that is used. Currently this will be a org .springframework.data.elasticsearch.core.clients.elasticsearch7.ElasticsearchAggregations object; later different implementations will be available. The same change has been done to the ReactiveSearchOperations.aggregate() functions, the now return a Flux<AggregationContainer<?>>. Programs using the aggregations need to be changed to cast the returned value to the appropriate class to further proces it.

  • methods that might have thrown a org.elasticsearch.ElasticsearchStatusException now will throw org.springframework.data.elasticsearch.RestStatusException instead.

Handling of field and sourceFilter properties of Query

Up to version 4.2 the fields property of a Query was interpreted and added to the include list of the sourceFilter. This was not correct, as these are different things for Elasticsearch. This has been corrected. As a consequence code might not work anymore that relies on using fields to specify which fields should be returned from the document’s _source' and should be changed to use the `sourceFilter.

search_type default value

The default value for the search_type in Elasticsearch is query_then_fetch. This now is also set as default value in the Query implementations, it was previously set to dfs_query_then_fetch.

BulkOptions changes

Some properties of the org.springframework.data.elasticsearch.core.query.BulkOptions class have changed their type:

  • the type of the timeout property has been changed to java.time.Duration.

  • the type of the`refreshPolicy` property has been changed to org.springframework.data.elasticsearch.core.RefreshPolicy.

IndicesOptions change

Spring Data Elasticsearch now uses org.springframework.data.elasticsearch.core.query.IndicesOptions instead of org.elasticsearch.action.support.IndicesOptions.

Completion classes

The classes from the package org.springframework.data.elasticsearch.core.completion have been moved to org.springframework.data.elasticsearch.core.suggest.

Other renamings

The org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentPropertyConverter interface has been renamed to org.springframework.data.elasticsearch.core.mapping.PropertyValueConverter. Likewise the implementations classes named XXPersistentPropertyConverter have been renamed to XXPropertyValueConverter.