我有这种关系
@OneToOne(cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy = "candidacy")
@XmlElement
@Getter
@Setter
private InformCandidacy informCandidacy;
@OneToOne
@JoinColumn(name = "candidacy_id", nullable = false, insertable = false, updatable = false)
@Getter
@Setter
private Candidacy candidacy;
在数据库上,我声明我的FK
<addForeignKeyConstraint baseColumnNames="candidacy_id" baseTableName="inform_candidacy" constraintName="fk_candidacy_inform_candidacy" onDelete="CASCADE" onUpdate="CASCADE" referencedColumnNames="id" referencedTableName="candidacy"/>
但是,当我尝试坚持级联候选资格,然后保存第一次在数据库上尚不存在的InformCandidacy时,它们之间的关系没有创建,并且InformCandidacy对于Candidacy为空
@Override
public void saveAll(final List<Candidacy> candidacies) {
for (Candidacy candidacy : candidacies) {
Candidacy candidacyDB = findById(candidacy.getId());
candidacy.getInformCandidacy().setCandidacy(candidacyDB);
candidacyDB.setInformCandidacy(candidacy.getInformCandidacy());
candidacyRepository.save(candidacyDB);
}
}
在我的InformCandidacy表格中,我与Candidacy没有关系
*************************** 1. row ***************************
id: 101
candidacy_id: NULL <--------- WTF!
selected_number: NULL
information_letter: NULL
selection_decision: NULL
selectionReport: 2014-06-28
我做错了。
问候。
您的映射告诉hibernate不要插入或更新“ candidacy_id”列(可插入=假,可更新=假)。这样尝试:
@OneToOne
@JoinColumn(name = "candidacy_id", nullable = false)
@Getter
@Setter
private Candidacy candidacy;
本文收集自互联网,转载请注明来源。
如有侵权,请联系[email protected] 删除。
我来说两句