CODEWITHSUNDEEP
jpaone-to-many
omid haghighatgoo
omid haghighatgoo

Reputation: 332

@onetomany with foreign key

I have two table like these :

1) table server_type :

server_type_id : number 

server_type_name : nvarchar

2) table server :

server_id:number

server_IP:nvarchar2

servername :nvarchar2

server_type_id:number

I want to create server table with @OneToMany with server_type_id foreign key with referenced from server_type

I don't know how to do it , all of example and question here is opposite of this

Upvotes: 0

Views: 438

Answers (2)

Jayasagar
Jayasagar

Reputation: 2066

Have you tried this ??. May be we can help if you can post some code :)

      public class Server {

          @ManyToOne            
          @JoinColumn(name = "server_type_id")
          private ServerType serverType;    
     }

       public class ServerType {

           @OneToMany(mappedBy = "serverType")
           private Collection<Server> servers;  
       }

Upvotes: 1

Kalher
Kalher

Reputation: 3653

Your @OneToMany relationship can be achieved

  1. using join table
  2. without join table

In your case you can use second option and here is an example (you are talking about examples)

class UserDetails {

  @OneToMany(mappedBy="user")
  private Vehicle vehicle;

 //Other fields

}

class Vehicle {

      @ManyToOne
      @JoinColumn(name="USER_ID")
      private UserDrtails user;

     //other fields
}

Upvotes: 1

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