1. PrimaryKeyJoinColumn: http://docs.jboss.org/hibernate/orm/5.4/userguide/html_single/Hibernate_User_Guide.html#identifiers-derived
{code:java}
@OneToOne
@PrimaryKeyJoinColumn // bug here?: no FOREIGN KEY in table sql.
private Person person;
@OneToOne // will generate a FOREIGN KEY in table sql.
private Person person2;
{code}
2. PrimaryKeyJoinColumn not support the referencedColumnName attr?
3. the referencedColumnName att will add a UNIQUE KEY named "UK_xxx" to the target table even @ManyToOne
{code:java}
@JoinColumn(referencedColumnName = "attrB")
@ManyToOne(targetEntity = ClassB.class)
private Long attrA;
{code}
4. referencedColumnName can not work with FetchType.LAZY? |
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