Spring Data Elasticsearch : @Field and non @Field all got indexed

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I chose to use my @Entity class to be marked with @Document as well, so that saving the overhead of maintaining the DTOs.

Now, when trying to index into elasticsearch these entities, they got stored into elastic with all properties (Unless i explicitly mark those unwanted with @JsonIgnore).

Could anyone just explain to me what really happens, and if it is possible to just selectively chose specific properties.

Note : marking some of them a @Field does not make any difference

I found a workaround that might be helpful for some.

1. Create a Custom EntityMapper EntityMapper is an interface that comes with the spring data elasticsearch package org.springframework.data.elasticsearch.core, this interface has one implementation class by default called DefaultEntityMapper with two methods to override.

public String mapToString(Object object) throws IOException;

SimpleFilterProvider filters = new SimpleFilterProvider();
filters.setDefaultFilter(SimpleBeanPropertyFilter.filterOutAllExcept(fieldsNotToFilter));
filters.setFailOnUnknownId(false);
String dtoAsString = objectMapper.writer(filters).writeValueAsString(object);

Note that you need @JsonFilter("filterName") annotation to mark the entity class.

2. Inject the created CustomEntityMapper into elasticsearch:transport-client bean name="entityMapper" class="com.modym.core.search.CustomEntityMapper

Elasticsearch Queries with Spring Data, I found a workaround that might be helpful for some. 1. Create a Custom EntityMapper EntityMapper is an interface that comes with the spring data elasticsearch� Here, we apply the @MultiField annotation to tell Spring Data that we would like this field to be indexed in several ways. The main field will use the name title and will be analyzed according to the rules described above. But we also provide a second annotation, @InnerField, which describes an additional indexing of the title field.

You are right, also fields without @Field are included. But:

  1. They are NOT indexed and not present in the mapping
  2. Spring data (a not so mature and so valuable project) Jsonizes all fields by default, so the problem is Spring Data as you are saying, but instead of your complex solution you can do add this annotation to your entity: @Document( indexName = INDEX_NAME, type = TYPE, shards = 1, replicas = 0 ) @JsonIgnoreProperties( value = {"field1", "field2", ..., "fieldN"} ) public class Entity {

Spring Data Elasticsearch, Elasticsearch can also be configured to regard a field as analyzed and not- analyzed to tell Spring Data that we would like this field to be indexed in several ways. matched, but it will have a lower score because not all of the terms matched. StringTerms topTags = (StringTerms) results.get("top_tags");. Each string field has index param in the mapping config, which defaults to analyzed. That means that besides the _all field each field is indexed solely. And for the _all field it is said in reference that: By default, it is enabled and all fields are included in it for ease of use.

See Field description in: https://docs.spring.io/spring-data/elasticsearch/docs/3.2.4.RELEASE/reference/html/#elasticsearch.mapping.meta-model.annotations It states:

@Field: Applied at the field level and defines properties of the field, most of the attributes map to the respective Elasticsearch Mapping definitions

I.e. @Field annotation defines field properties, not its presence in a mapping.

If you don't want to map a variable you have (at least) two options:

  1. Use @JsonIgnore annotation
  2. Use @Mapping for importing your mapping file. In the mapping file, disable Dynamic Mapping - https://www.elastic.co/guide/en/elasticsearch/guide/current/dynamic-mapping.html

Spring Data Elasticsearch with ES 7.2.1, Spring Data Elasticsearch Object Mapping is the process that maps a Java field types and formats also need to be stored into the Elasticsearch index mappings. The Jackson based annotations did not fully provide all the information that is To get started the ReactiveElasticsearchTemplate needs to know about the� Elasticsearch tries to index all of the fields you give it, but sometimes you want to just store the field without indexing it. For instance, imagine that you are using Elasticsearch as a web session store. You may want to index the session ID and last update time, but you don’t need to query or run aggregations on the session data itself.

Hi, I am using ES 7.2.1 to store large amount of location based data and For location coordinates, I am using GeoPoint fields from my java with ES 7.2.1 | GeoPoint mapping failure while indexing Everything seems to be working for: Not the one which is generated by Spring Data but the real one. The Spring Data Elasticsearch project applies core Spring concepts to the development of solutions using the Elasticsearch Search Engine. We have povided a "template" as a high-level abstraction for storing,querying,sorting and faceting documents.

To find documents that are missing an indexed value for a field, use the must_not boolean query with the exists query. The following search returns documents that are missing an indexed value for the user.id field.

The Spring Data MongoDB project applies core Spring concepts to the development of solutions that use the MongoDB document style data store. We provide a “template” as a high-level abstraction for storing and querying documents.

Comments
  • Are you sure that fields without @Field annotation are not indexed? I my project I didn't include any @Field annotation and my objects are searchable(which means all field are indexed)