弹簧数据弹性搜索和更新 [英] spring-data-elasticsearch and update

问题描述

我正在使用spring-data-elasticsearch进行CRUD操作。

i'm using spring-data-elasticsearch to do CRUD operations.

我有一个自定义存储库，该存储库扩展了ElasticsearchRepository。

I have a custom Repository that extends ElasticsearchRepository.

最终，ElasticsearchRepository扩展了CrudRepository，这意味着可以更新现有记录。

Ultimately ElasticsearchRepository extends CrudRepository which implies updating an existing record is possible.

问题是，您如何做到这一点？我还没有找到一种叫做 update（）的方法

The question is, how do you accomplish this? I haven't found a method called "update()"

我认为执行以下操作是可行的（从 https://github.com/BioMedCentralLtd/spring-data-elasticsearch-sample-application ）

I thought doing the following would work (code stolen from https://github.com/BioMedCentralLtd/spring-data-elasticsearch-sample-application)

    //create
    Book book = new Book();
    book.setId("123455");
    book.setName("Spring Data Elasticsearch");
    book.setVersion(System.currentTimeMillis());
    repository.save(book);

    //update
    book.setName("THIS IS A COMPLETELY NEW TITLE");
    repository.save(book); 

但是第二次保存会引发InvocationTargetException

However the 2nd save throws an InvocationTargetException

通过调试器对其进行检查显示：

Examining it with the debugger shows:

[book][0] [book][123455]: version conflict, current [1447792071681], provided [1447792071681]

Book对象类似于：

The Book object looks like:

@Document(indexName = "book",type = "book" , shards = 1, replicas = 0, indexStoreType = "memory", refreshInterval = "-1")
public class Book {

    @Id
    private String id;
    private String name;
    private Long price;
    @Version
    private Long version;

    public Map<Integer, Collection<String>> getBuckets() {
        return buckets;
    }

    public void setBuckets(Map<Integer, Collection<String>> buckets) {
        this.buckets = buckets;
    }

    @Field(type = FieldType.Nested)
    private Map<Integer, Collection<String>> buckets = new HashMap();

    public Book(){}

    public Book(String id, String name,Long version) {
        this.id = id;
        this.name = name;
        this.version = version;
    }

    getters and setters removed for space

}

我的存储库代码甚至更简单：

My Repository code is even simpler:

import org.springframework.data.elasticsearch.entities.Book;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

public interface BookRepository extends ElasticsearchRepository<Book, Long> {

}

我必须提供一种更新方法吗？

Do I have to provide an update method?

编辑：

没关系。我将更新更改为：

Nevermind. I changed the update to:

    //update
    book.setName("THIS IS A COMPLETELY NEW TITLE");
    book.setVersion(System.currentTimeMillis());
    repository.save(book); 

并更新了记录。

推荐答案

您可以使用UpdateQuery和ElasticSearchTemplate来更新任何部分文档。例如

You can use UpdateQuery and ElasticSearchTemplate to update any partial document. e.g

    final UpdateRequest updateRequest = new UpdateRequest();
    updateRequest.index(mainIndexName);
    updateRequest.type(typeName);
    updateRequest.id(id);
    updateRequest.doc(XContentFactory.jsonBuilder().startObject()
                        .field("accountType", accountType)
                        .endObject());
    final UpdateQuery updateQuery = new UpdateQueryBuilder().withId(id)
                        .withClass(<DocumentClass>).withUpdateRequest(updateRequest).build();
    UpdateResponse updateResponse =  elasticSearchTemplate.update(updateQuery);

这篇关于弹簧数据弹性搜索和更新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！