即使FetchMode = Join，也会发出Hibernate发出select语句 [英] Hibernate Issuing select statement even if FetchMode = Join

问题描述

我有一个映射到国家/地区实体的userAccount实体. UserAccount类中的国家/地区映射是这样的

I have a userAccount entity mapped with a country entity . The country mapping in UserAccount class is like this

@ManyToOne(fetch=FetchType.EAGER)
@Fetch(FetchMode.JOIN)
@JoinColumn(name="f_country_id", nullable=true, insertable=false, updatable=false)
private Country country;

即使将fetchmode定义为Join，hibernate也会触发单独的SQL Select来提取国家/地区.

Even there is fetchmode defined as Join, hibernate fires a separate SQL Select to fetch countries.

推荐答案

删除fetch=FetchType.EAGER.渴望获取将触发级联选择语句.

Remove the fetch=FetchType.EAGER. Eager fetching triggers cascading select statements.

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