hibernate/jpa double OneToOne Bidirectional Relationship to one entity
I have the following structure that I can't figure out how to put in the correct hibernate mapping.
public class Company{
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_x")
private Details detailsX;
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_y")
private Details detailsY;
}
and
public class Details{
....
private Type type; //Enum that could be x or y
@OneToOne
private Company company;
}
Company has exactly on details for x and one for y. A details can only be used by one company in either x or y.
Database wise I'm think the best set-up is to have 2 columns on tbl_company reference the Pk of Details.
But this results in the relation from Details to Company not working.
Anyone any suggestions on how to best map this?
Edit: added type to Details
java hibernate spring-boot jpa orm
asked Nov 20 at 19:05
Joris
13
add a comment |
I have the following structure that I can't figure out how to put in the correct hibernate mapping.
public class Company{
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_x")
private Details detailsX;
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_y")
private Details detailsY;
}
and
public class Details{
....
private Type type; //Enum that could be x or y
@OneToOne
private Company company;
}
Company has exactly on details for x and one for y. A details can only be used by one company in either x or y.
Database wise I'm think the best set-up is to have 2 columns on tbl_company reference the Pk of Details.
But this results in the relation from Details to Company not working.
Anyone any suggestions on how to best map this?
Edit: added type to Details
java hibernate spring-boot jpa orm
asked Nov 20 at 19:05
Joris
13
add a comment |
I have the following structure that I can't figure out how to put in the correct hibernate mapping.
public class Company{
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_x")
private Details detailsX;
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_y")
private Details detailsY;
}
and
public class Details{
....
private Type type; //Enum that could be x or y
@OneToOne
private Company company;
}
Company has exactly on details for x and one for y. A details can only be used by one company in either x or y.
Database wise I'm think the best set-up is to have 2 columns on tbl_company reference the Pk of Details.
But this results in the relation from Details to Company not working.
Anyone any suggestions on how to best map this?
Edit: added type to Details
java hibernate spring-boot jpa orm
asked Nov 20 at 19:05
Joris
13
I have the following structure that I can't figure out how to put in the correct hibernate mapping.
public class Company{
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_x")
private Details detailsX;
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "details_y")
private Details detailsY;
}
and
public class Details{
....
private Type type; //Enum that could be x or y
@OneToOne
private Company company;
}
Company has exactly on details for x and one for y. A details can only be used by one company in either x or y.
Database wise I'm think the best set-up is to have 2 columns on tbl_company reference the Pk of Details.
But this results in the relation from Details to Company not working.
Anyone any suggestions on how to best map this?
Edit: added type to Details
java hibernate spring-boot jpa orm
java hibernate spring-boot jpa orm
asked Nov 20 at 19:05
Joris
13
asked Nov 20 at 19:05
Joris
13
edited Nov 21 at 8:10
asked Nov 20 at 19:05
Joris
13
asked Nov 20 at 19:05
Joris
13
asked Nov 20 at 19:05
Joris
13
13
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You have to define mappedBy property which will say that i am not the owner like below.
public class Details{
@OneToOne(mappedBy = "detailsX", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Company company;
}
answered Nov 20 at 19:11
Alien
4,68331024
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You have to define mappedBy property which will say that i am not the owner like below.
public class Details{
@OneToOne(mappedBy = "detailsX", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Company company;
}
answered Nov 20 at 19:11
Alien
4,68331024
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
add a comment |
You have to define mappedBy property which will say that i am not the owner like below.
public class Details{
@OneToOne(mappedBy = "detailsX", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Company company;
}
answered Nov 20 at 19:11
Alien
4,68331024
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
add a comment |
You have to define mappedBy property which will say that i am not the owner like below.
public class Details{
@OneToOne(mappedBy = "detailsX", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Company company;
}
answered Nov 20 at 19:11
Alien
4,68331024
You have to define mappedBy property which will say that i am not the owner like below.
public class Details{
@OneToOne(mappedBy = "detailsX", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Company company;
}
answered Nov 20 at 19:11
Alien
4,68331024
answered Nov 20 at 19:11
Alien
4,68331024
answered Nov 20 at 19:11
Alien
4,68331024
answered Nov 20 at 19:11
Alien
4,68331024
4,68331024
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
add a comment |
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
This only works then for detailsX not for detailsY, the problem I'm having it is one of these 2
– Joris
Nov 20 at 19:51
add a comment |
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