Elasticsearsch Java API has_child [英] Elasticsearsch Java API has_child

问题描述

我正在寻找如何构建查询以由父文档的子级来获取/搜索的方法，并且我在 QueryBuilders 类中看到了这一点.1.7有 hasChildQuery 方法(文档链接)

I'm looking for how to build a query to fetch/search by children of parent document and I see that in QueryBuilders class up to ver. 1.7 there was hasChildQuery method (documentation link)

// Has Child
QueryBuilder qb = hasChildQuery("blog_tag", termQuery("tag","something"));

但是从1.7开始，没有这样的东西

如何在Elasticsearch Java客户端中查询子代?为什么将其删除?

How to query for children then in Elasticsearch Java client? Why it was removed?

我正在使用版本 5.5.0

推荐答案

我发现有一个 JoinQueryBuilders 类包含方法

I've found that there is JoinQueryBuilders class that contains methods

public static HasChildQueryBuilder hasChildQuery(String type, QueryBuilder query, ScoreMode scoreMode)
public static HasParentQueryBuilder hasParentQuery(String type, QueryBuilder query, boolean score)

可让您查询孩子/父母

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