JPA reference OneToOne CascadeType problems

[Sergey Deplake]

There are 2 tables in database and 2 entities according them. I make them easier.

Table 1 and entity:

@Id
@GeneratedValue
Id

@Basic
Name

@OneToOne(mappedBy = "table1Id", cascade = CascadeType.All)
Table2Entity

Table 2 and entity:

 
@Id
@GeneratedValue
Id

@Basic
Name

@OneToOne
@JoinColumn(name = "Table1Id", referencedColumnName = "Id")
Table1Id

Then I make 2 objects. First of the first entity, second of the second entity. Then set second object into first and persist first entity. In result first table fill in correctly, but in the second table appiars a problem. Field Table1Id contains null, but not id of the first entity. Why is it so? What can be the problem of this and how can I solve my problem?

[James Sutherland]

You need to set both sides of the relationship.

See,
http://en.wikibooks.org/wiki/Java_Persistence/Relationships#Object_corruption.2C_one_side_of_the_relationship_is_not_updated_after_updating_the_other_side

[Sergey Deplake]

Thank you for help. Now everything work correct!