休眠@OneToOne不映射

Question

Error :

org.hibernate.AnnotationException: Unknown mappedBy in: com.catalyst.User.Model.Person.User, referenced property unknown: com.catalyst.User.Model.User.User_ID

I'm trying to create a OneToOne relationship without success. What am I doing wrong?

User.java

package com.catalyst.User.Model;

import javax.persistence.CascadeType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.OneToOne;
import javax.persistence.PrimaryKeyJoinColumn;

@Entity(name = "User" )
@Table(name = "dbo.Users")
public class User
{
    @Id
    @Column(name="ID")
    @GeneratedValue(strategy=GenerationType.AUTO)
    private int ID;

    @Column(name="Username")
    private String Username;

    @Column(name="Password")
    private String Password;

    @Column(name="Active")
    private int Active;

    @OneToOne(cascade = CascadeType.ALL)
    @PrimaryKeyJoinColumn
    private Person hPerson;

    public User()
    {
        // Hibernate Needs This
    }

    public User(String argUsername, String argPassword, int argActive)
    {
        this.Username   = argUsername;
        this.Password   = argPassword;
        this.Active     = argActive;
    }

    public Person getPerson()
    {
        return(hPerson);
    }

    public String getUsername()
    {
        return(Username);
    }

    public String getPassword()
    {
        return(Password);
    }

    public int getActive()
    {
        return(Active);
    }

    public void setUsername(String argUsername)
    {
        this.Username   = argUsername;
    }

    public void setPassword(String argPassword)
    {
        this.Password   = argPassword;
    }

    public void setActive(int argActive)
    {
        this.Active     = argActive;
    }

}

Person.java

package com.catalyst.User.Model;

import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Parameter;

/*
    Person Model
*/

@Entity(name = "Person" )
@Table(name = "dbo.Person")
public class Person
{
    @Id
    @GeneratedValue(generator = "foreigngen")
    @GenericGenerator(strategy = "foreign", name="foreigngen",parameters = @Parameter(name = "property", value="user"))
    @Column(name = "ID")
    private int ID;

    @Column(name="FName")
    private String Firstname;

    @Column(name="LName")
    private String Lastname;

    @Column(name="Address")
    private String Address;

    @Column(name="Email")
    private String Email;

    @OneToOne(mappedBy = "user")
    private User User;

    @Column(name="Role_Id")
    private int RoleID;

    public Person()
    {
        // Hibernate Needs This
    }

    public Person(String argFName, String argLName, String argAddress, String argEmail, int argRoleID)
    {
        this.Firstname      = argFName;
        this.Lastname       = argLName;
        this.Address        = argAddress;
        this.Email          = argEmail;
        this.RoleID         = argRoleID;
    }

    public int getID()
    {
        return(ID);
    }

    public String getFirstname()
    {
        return(Firstname);
    }

    public String getLastname()
    {
        return(Lastname);
    }

    public String getFullname()
    {
        return(Firstname + " " + Lastname);
    }

    public String getAddress()
    {
        return(Address);
    }

    public String getEmail()
    {
        return(Email);
    }

    public User getUser()
    {
        return(User);
    }

    public int getRoleID()
    {
        return(RoleID);
    }

    public void setID(int arg)
    {
        this.ID = arg;
    }

    public void setFirstname(String arg)
    {
        this.Firstname = arg;
    }

    public void setLastname(String arg)
    {
        this.Lastname = arg;
    }

    public void setAddress(String arg)
    {
        this.Address = arg;
    }

    public void setEmail(String arg)
    {
        this.Email = arg;
    }

    public void setUserID(User arg)
    {
        this.User = arg;
    }

    public void setRoleID(int arg)
    {
        this.RoleID = arg;
    }
}

Database Dump

USE [master]
GO
/****** Object:  Database [APP]    Script Date: 6/23/2015 1:56:37 PM ******/
CREATE DATABASE [APP]
 CONTAINMENT = NONE
 ON  PRIMARY 
( NAME = N'APP', FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\APP.mdf' , SIZE = 4096KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
 LOG ON 
( NAME = N'APP_log', FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\APP_log.ldf' , SIZE = 1024KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
GO
ALTER DATABASE [APP] SET COMPATIBILITY_LEVEL = 110
GO
IF (1 = FULLTEXTSERVICEPROPERTY('IsFullTextInstalled'))
begin
EXEC [APP].[dbo].[sp_fulltext_database] @action = 'enable'
end
GO
ALTER DATABASE [APP] SET ANSI_NULL_DEFAULT OFF 
GO
ALTER DATABASE [APP] SET ANSI_NULLS OFF 
GO
ALTER DATABASE [APP] SET ANSI_PADDING OFF 
GO
ALTER DATABASE [APP] SET ANSI_WARNINGS OFF 
GO
ALTER DATABASE [APP] SET ARITHABORT OFF 
GO
ALTER DATABASE [APP] SET AUTO_CLOSE OFF 
GO
ALTER DATABASE [APP] SET AUTO_CREATE_STATISTICS ON 
GO
ALTER DATABASE [APP] SET AUTO_SHRINK OFF 
GO
ALTER DATABASE [APP] SET AUTO_UPDATE_STATISTICS ON 
GO
ALTER DATABASE [APP] SET CURSOR_CLOSE_ON_COMMIT OFF 
GO
ALTER DATABASE [APP] SET CURSOR_DEFAULT  GLOBAL 
GO
ALTER DATABASE [APP] SET CONCAT_NULL_YIELDS_NULL OFF 
GO
ALTER DATABASE [APP] SET NUMERIC_ROUNDABORT OFF 
GO
ALTER DATABASE [APP] SET QUOTED_IDENTIFIER OFF 
GO
ALTER DATABASE [APP] SET RECURSIVE_TRIGGERS OFF 
GO
ALTER DATABASE [APP] SET  DISABLE_BROKER 
GO
ALTER DATABASE [APP] SET AUTO_UPDATE_STATISTICS_ASYNC OFF 
GO
ALTER DATABASE [APP] SET DATE_CORRELATION_OPTIMIZATION OFF 
GO
ALTER DATABASE [APP] SET TRUSTWORTHY OFF 
GO
ALTER DATABASE [APP] SET ALLOW_SNAPSHOT_ISOLATION OFF 
GO
ALTER DATABASE [APP] SET PARAMETERIZATION SIMPLE 
GO
ALTER DATABASE [APP] SET READ_COMMITTED_SNAPSHOT OFF 
GO
ALTER DATABASE [APP] SET HONOR_BROKER_PRIORITY OFF 
GO
ALTER DATABASE [APP] SET RECOVERY FULL 
GO
ALTER DATABASE [APP] SET  MULTI_USER 
GO
ALTER DATABASE [APP] SET PAGE_VERIFY CHECKSUM  
GO
ALTER DATABASE [APP] SET DB_CHAINING OFF 
GO
ALTER DATABASE [APP] SET FILESTREAM( NON_TRANSACTED_ACCESS = OFF ) 
GO
ALTER DATABASE [APP] SET TARGET_RECOVERY_TIME = 0 SECONDS 
GO
USE [APP]
GO
/****** Object:  Table [dbo].[AssociatedProcedure]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[AssociatedProcedure](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Type] [varchar](50) NOT NULL,
    [Devices_ID] [int] NULL,
    [MicSupply_ID] [int] NOT NULL,
    [Drugs_ID] [int] NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_AssociatedProcedure] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Devices]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Devices](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [DevicesType] [varchar](50) NOT NULL,
    [Cost] [decimal](18, 0) NOT NULL,
    [DeviceAge] [int] NOT NULL,
    [Active] [bit] NOT NULL,
    [Max Age] [int] NOT NULL,
 CONSTRAINT [PK_Devices] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Drugs]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Drugs](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [DrugType] [varchar](50) NOT NULL,
    [DrugCost] [decimal](18, 0) NOT NULL,
    [Amount] [int] NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_Drugs] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[HIstory]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[HIstory](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Schedule_ID] [int] NULL,
    [Active] [bit] NULL,
    [Pet_ID] [int] NULL,
    [Actice] [bit] NULL,
 CONSTRAINT [PK_HIstory] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
/****** Object:  Table [dbo].[MicSupply]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[MicSupply](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [SupplyType] [varchar](50) NOT NULL,
    [Count] [int] NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_MicSupply] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Person]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Person](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [FName] [varchar](50) NOT NULL,
    [LName] [varchar](50) NOT NULL,
    [Address] [varchar](50) NOT NULL,
    [Email] [varchar](50) NOT NULL,
    [User_ID] [int] NOT NULL,
    [Role_Id] [int] NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_Person_1] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Pet]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Pet](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Prerson_ID] [int] NULL,
    [Name] [varchar](50) NULL,
    [Weight] [nchar](10) NULL,
    [Age] [bigint] NULL,
    [PetType] [varchar](50) NULL,
    [Active] [bit] NULL,
 CONSTRAINT [PK_Pet] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Procedure]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Procedure](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [AssociatedProcedure_ID] [int] NULL,
    [Cost] [decimal](18, 0) NOT NULL,
    [Devices_ID] [int] NOT NULL,
    [Drugs_ID] [int] NOT NULL,
    [MicSupply_ID] [int] NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_Procedure] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
/****** Object:  Table [dbo].[Role]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Role](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Role] [varchar](50) NOT NULL,
    [Active] [bit] NULL,
 CONSTRAINT [PK_Role] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Schedule]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Schedule](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Date] [datetime] NULL,
    [Procedure_ID] [int] NULL,
    [Pet_ID] [int] NULL,
    [Vet_ID] [int] NULL,
    [Devices_ID] [int] NULL,
    [Cost] [decimal](18, 0) NULL,
    [Services_ID] [int] NULL,
    [Active] [bit] NULL,
    [History_ID] [int] NULL,
 CONSTRAINT [PK_Schedule] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
/****** Object:  Table [dbo].[Services]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Services](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Type] [varchar](50) NOT NULL,
    [Cost] [decimal](18, 0) NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_Services] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[User]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[User](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Username] [varchar](50) NOT NULL,
    [Password] [varchar](50) NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_User] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Vets]    Script Date: 6/23/2015 1:56:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Vets](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Role_ID] [int] NOT NULL,
    [Active] [bit] NOT NULL,
 CONSTRAINT [PK_Vets] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET IDENTITY_INSERT [dbo].[AssociatedProcedure] ON 

INSERT [dbo].[AssociatedProcedure] ([ID], [Type], [Devices_ID], [MicSupply_ID], [Drugs_ID], [Active]) VALUES (14, N'Wrap', 2, 3, 2, 1)
INSERT [dbo].[AssociatedProcedure] ([ID], [Type], [Devices_ID], [MicSupply_ID], [Drugs_ID], [Active]) VALUES (15, N'stich', NULL, 3, 4, 1)
SET IDENTITY_INSERT [dbo].[AssociatedProcedure] OFF
SET IDENTITY_INSERT [dbo].[Devices] ON 

INSERT [dbo].[Devices] ([ID], [DevicesType], [Cost], [DeviceAge], [Active], [Max Age]) VALUES (1, N'Xray', CAST(100 AS Decimal(18, 0)), 3, 1, 101)
INSERT [dbo].[Devices] ([ID], [DevicesType], [Cost], [DeviceAge], [Active], [Max Age]) VALUES (2, N'Table', CAST(50 AS Decimal(18, 0)), 1, 1, 122)
INSERT [dbo].[Devices] ([ID], [DevicesType], [Cost], [DeviceAge], [Active], [Max Age]) VALUES (3, N'Light', CAST(25 AS Decimal(18, 0)), 5, 1, 133)
SET IDENTITY_INSERT [dbo].[Devices] OFF
SET IDENTITY_INSERT [dbo].[Drugs] ON 

INSERT [dbo].[Drugs] ([ID], [DrugType], [DrugCost], [Amount], [Active]) VALUES (1, N'Epoch', CAST(4 AS Decimal(18, 0)), 200, 1)
INSERT [dbo].[Drugs] ([ID], [DrugType], [DrugCost], [Amount], [Active]) VALUES (2, N'dg health hemorrhoidal', CAST(3 AS Decimal(18, 0)), 300, 1)
INSERT [dbo].[Drugs] ([ID], [DrugType], [DrugCost], [Amount], [Active]) VALUES (3, N'Sertraline Hydrochloride', CAST(4 AS Decimal(18, 0)), 100, 1)
INSERT [dbo].[Drugs] ([ID], [DrugType], [DrugCost], [Amount], [Active]) VALUES (4, N'ibuprofen', CAST(2 AS Decimal(18, 0)), 200, 1)
INSERT [dbo].[Drugs] ([ID], [DrugType], [DrugCost], [Amount], [Active]) VALUES (5, N'Hydromorphone HCl', CAST(5 AS Decimal(18, 0)), 500, 1)
SET IDENTITY_INSERT [dbo].[Drugs] OFF
SET IDENTITY_INSERT [dbo].[HIstory] ON 

INSERT [dbo].[HIstory] ([ID], [Schedule_ID], [Active], [Pet_ID], [Actice]) VALUES (4, 4, 1, 4, 1)
INSERT [dbo].[HIstory] ([ID], [Schedule_ID], [Active], [Pet_ID], [Actice]) VALUES (6, 5, 1, 3, 1)
SET IDENTITY_INSERT [dbo].[HIstory] OFF
SET IDENTITY_INSERT [dbo].[MicSupply] ON 

INSERT [dbo].[MicSupply] ([ID], [SupplyType], [Count], [Active]) VALUES (1, N'tape', 6, 1)
INSERT [dbo].[MicSupply] ([ID], [SupplyType], [Count], [Active]) VALUES (2, N'glue', 7, 1)
INSERT [dbo].[MicSupply] ([ID], [SupplyType], [Count], [Active]) VALUES (3, N'glove', 3, 1)
INSERT [dbo].[MicSupply] ([ID], [SupplyType], [Count], [Active]) VALUES (4, N'broom', 2, 1)
INSERT [dbo].[MicSupply] ([ID], [SupplyType], [Count], [Active]) VALUES (5, N'bleach', 8, 1)
SET IDENTITY_INSERT [dbo].[MicSupply] OFF
SET IDENTITY_INSERT [dbo].[Person] ON 

INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (4, N'Timothy', N'Stewart', N'476 Kedzie Drive', N'tstewart0@soup.io', 1, 3, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (6, N'David', N'Hath', N'92990 Sutherland Crossing', N'hbryant9@europa.eu', 2, 1, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (7, N'Nick', N'Tacey', N'242 Oakridge Street', N'achavez1@g.co', 3, 1, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (8, N'Nick', N'Duncan', N'853 Mariners Cove Trail', N'ariley8@forbes.com', 4, 1, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (10, N'James', N'Blair', N'1234', N'happy', 5, 1, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (12, N'Anne', N'Chavez', N'242 Oakridge Street', N'achavez1@g.co', 6, 2, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (16, N'Christine', N'Carroll', N'4 Hintze Center', N'ccarroll2@wikipedia.org', 7, 5, 1)
INSERT [dbo].[Person] ([ID], [FName], [LName], [Address], [Email], [User_ID], [Role_Id], [Active]) VALUES (17, N'Jonathan', N'George', N'07067 Pawling Lane', N'jgeorge3@fda.gov', 8, 4, 1)
SET IDENTITY_INSERT [dbo].[Person] OFF
SET IDENTITY_INSERT [dbo].[Pet] ON 

INSERT [dbo].[Pet] ([ID], [Prerson_ID], [Name], [Weight], [Age], [PetType], [Active]) VALUES (2, 6, N'Peter', N'3         ', 4, N'dog', 1)
INSERT [dbo].[Pet] ([ID], [Prerson_ID], [Name], [Weight], [Age], [PetType], [Active]) VALUES (3, 9, N'Phyllis', N'2         ', 7, N'cat', 1)
INSERT [dbo].[Pet] ([ID], [Prerson_ID], [Name], [Weight], [Age], [PetType], [Active]) VALUES (4, 9, N'Heather', N'4         ', 21, N'dog', 1)
INSERT [dbo].[Pet] ([ID], [Prerson_ID], [Name], [Weight], [Age], [PetType], [Active]) VALUES (5, 10, N'Patricia', N'14        ', 1, N'cat', 1)
SET IDENTITY_INSERT [dbo].[Pet] OFF
SET IDENTITY_INSERT [dbo].[Procedure] ON 

INSERT [dbo].[Procedure] ([ID], [AssociatedProcedure_ID], [Cost], [Devices_ID], [Drugs_ID], [MicSupply_ID], [Active]) VALUES (1, NULL, CAST(400 AS Decimal(18, 0)), 2, 2, 1, 1)
INSERT [dbo].[Procedure] ([ID], [AssociatedProcedure_ID], [Cost], [Devices_ID], [Drugs_ID], [MicSupply_ID], [Active]) VALUES (2, 14, CAST(600 AS Decimal(18, 0)), 3, 4, 1, 1)
INSERT [dbo].[Procedure] ([ID], [AssociatedProcedure_ID], [Cost], [Devices_ID], [Drugs_ID], [MicSupply_ID], [Active]) VALUES (4, NULL, CAST(300 AS Decimal(18, 0)), 1, 5, 2, 1)
SET IDENTITY_INSERT [dbo].[Procedure] OFF
SET IDENTITY_INSERT [dbo].[Role] ON 

INSERT [dbo].[Role] ([ID], [Role], [Active]) VALUES (1, N'Admin', 1)
INSERT [dbo].[Role] ([ID], [Role], [Active]) VALUES (2, N'Vet', 1)
INSERT [dbo].[Role] ([ID], [Role], [Active]) VALUES (3, N'Vet Tec', 1)
INSERT [dbo].[Role] ([ID], [Role], [Active]) VALUES (4, N'Divice Tec', 1)
INSERT [dbo].[Role] ([ID], [Role], [Active]) VALUES (5, N'Employe', 1)
SET IDENTITY_INSERT [dbo].[Role] OFF
SET IDENTITY_INSERT [dbo].[Schedule] ON 

INSERT [dbo].[Schedule] ([ID], [Date], [Procedure_ID], [Pet_ID], [Vet_ID], [Devices_ID], [Cost], [Services_ID], [Active], [History_ID]) VALUES (4, NULL, 1, 2, 1, 2, CAST(300 AS Decimal(18, 0)), 1, 1, 1)
INSERT [dbo].[Schedule] ([ID], [Date], [Procedure_ID], [Pet_ID], [Vet_ID], [Devices_ID], [Cost], [Services_ID], [Active], [History_ID]) VALUES (5, NULL, 2, 2, 2, 2, CAST(200 AS Decimal(18, 0)), 1, 1, 1)
SET IDENTITY_INSERT [dbo].[Schedule] OFF
SET IDENTITY_INSERT [dbo].[Services] ON 

INSERT [dbo].[Services] ([ID], [Type], [Cost], [Active]) VALUES (1, N'Bath', CAST(50 AS Decimal(18, 0)), 1)
INSERT [dbo].[Services] ([ID], [Type], [Cost], [Active]) VALUES (2, N'Hair Cut', CAST(25 AS Decimal(18, 0)), 1)
INSERT [dbo].[Services] ([ID], [Type], [Cost], [Active]) VALUES (3, N'Brush Teeth', CAST(15 AS Decimal(18, 0)), 1)
SET IDENTITY_INSERT [dbo].[Services] OFF
SET IDENTITY_INSERT [dbo].[User] ON 

INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (1, N'frank', N'happy', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (2, N'dah', N'Teamprj', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (3, N'nTacey', N'passy', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (4, N'nDuncan', N'root', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (5, N'happy', N'happy', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (6, N'frank', N'tank', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (7, N'sally', N'sue', 1)
INSERT [dbo].[User] ([ID], [Username], [Password], [Active]) VALUES (8, N'jon', N'jon', 1)
SET IDENTITY_INSERT [dbo].[User] OFF
SET IDENTITY_INSERT [dbo].[Vets] ON 

INSERT [dbo].[Vets] ([ID], [Role_ID], [Active]) VALUES (1, 1, 1)
INSERT [dbo].[Vets] ([ID], [Role_ID], [Active]) VALUES (2, 3, 1)
INSERT [dbo].[Vets] ([ID], [Role_ID], [Active]) VALUES (3, 2, 1)
INSERT [dbo].[Vets] ([ID], [Role_ID], [Active]) VALUES (4, 1, 1)
SET IDENTITY_INSERT [dbo].[Vets] OFF
ALTER TABLE [dbo].[AssociatedProcedure]  WITH CHECK ADD  CONSTRAINT [FK_AssociatedProcedure_Devices] FOREIGN KEY([MicSupply_ID])
REFERENCES [dbo].[MicSupply] ([ID])
GO
ALTER TABLE [dbo].[AssociatedProcedure] CHECK CONSTRAINT [FK_AssociatedProcedure_Devices]
GO
ALTER TABLE [dbo].[AssociatedProcedure]  WITH CHECK ADD  CONSTRAINT [FK_AssociatedProcedure_Drugs] FOREIGN KEY([Drugs_ID])
REFERENCES [dbo].[Drugs] ([ID])
GO
ALTER TABLE [dbo].[AssociatedProcedure] CHECK CONSTRAINT [FK_AssociatedProcedure_Drugs]
GO
ALTER TABLE [dbo].[AssociatedProcedure]  WITH CHECK ADD  CONSTRAINT [FK_AssociatedProcedure_MicSupply] FOREIGN KEY([MicSupply_ID])
REFERENCES [dbo].[MicSupply] ([ID])
GO
ALTER TABLE [dbo].[AssociatedProcedure] CHECK CONSTRAINT [FK_AssociatedProcedure_MicSupply]
GO
ALTER TABLE [dbo].[HIstory]  WITH CHECK ADD  CONSTRAINT [FK_HIstory_Pet] FOREIGN KEY([Pet_ID])
REFERENCES [dbo].[Pet] ([ID])
GO
ALTER TABLE [dbo].[HIstory] CHECK CONSTRAINT [FK_HIstory_Pet]
GO
ALTER TABLE [dbo].[HIstory]  WITH CHECK ADD  CONSTRAINT [FK_HIstory_Schedule] FOREIGN KEY([Schedule_ID])
REFERENCES [dbo].[Schedule] ([ID])
GO
ALTER TABLE [dbo].[HIstory] CHECK CONSTRAINT [FK_HIstory_Schedule]
GO
ALTER TABLE [dbo].[Person]  WITH CHECK ADD  CONSTRAINT [FK_Person_User] FOREIGN KEY([User_ID])
REFERENCES [dbo].[User] ([ID])
GO
ALTER TABLE [dbo].[Person] CHECK CONSTRAINT [FK_Person_User]
GO
ALTER TABLE [dbo].[Procedure]  WITH CHECK ADD  CONSTRAINT [FK_Procedure_Devices] FOREIGN KEY([Devices_ID])
REFERENCES [dbo].[Devices] ([ID])
GO
ALTER TABLE [dbo].[Procedure] CHECK CONSTRAINT [FK_Procedure_Devices]
GO
ALTER TABLE [dbo].[Procedure]  WITH CHECK ADD  CONSTRAINT [FK_Procedure_Drugs] FOREIGN KEY([Drugs_ID])
REFERENCES [dbo].[Drugs] ([ID])
GO
ALTER TABLE [dbo].[Procedure] CHECK CONSTRAINT [FK_Procedure_Drugs]
GO
ALTER TABLE [dbo].[Procedure]  WITH CHECK ADD  CONSTRAINT [FK_Procedure_MicSupply] FOREIGN KEY([MicSupply_ID])
REFERENCES [dbo].[MicSupply] ([ID])
GO
ALTER TABLE [dbo].[Procedure] CHECK CONSTRAINT [FK_Procedure_MicSupply]
GO
ALTER TABLE [dbo].[Schedule]  WITH CHECK ADD  CONSTRAINT [FK_Schedule_Devices] FOREIGN KEY([Devices_ID])
REFERENCES [dbo].[Devices] ([ID])
GO
ALTER TABLE [dbo].[Schedule] CHECK CONSTRAINT [FK_Schedule_Devices]
GO
ALTER TABLE [dbo].[Schedule]  WITH CHECK ADD  CONSTRAINT [FK_Schedule_Pet] FOREIGN KEY([Pet_ID])
REFERENCES [dbo].[Pet] ([ID])
GO
ALTER TABLE [dbo].[Schedule] CHECK CONSTRAINT [FK_Schedule_Pet]
GO
ALTER TABLE [dbo].[Schedule]  WITH CHECK ADD  CONSTRAINT [FK_Schedule_Procedure] FOREIGN KEY([Procedure_ID])
REFERENCES [dbo].[Procedure] ([ID])
GO
ALTER TABLE [dbo].[Schedule] CHECK CONSTRAINT [FK_Schedule_Procedure]
GO
ALTER TABLE [dbo].[Schedule]  WITH CHECK ADD  CONSTRAINT [FK_Schedule_Vets] FOREIGN KEY([Vet_ID])
REFERENCES [dbo].[Vets] ([ID])
GO
ALTER TABLE [dbo].[Schedule] CHECK CONSTRAINT [FK_Schedule_Vets]
GO
ALTER TABLE [dbo].[Vets]  WITH CHECK ADD  CONSTRAINT [FK_Vets_Role] FOREIGN KEY([Role_ID])
REFERENCES [dbo].[Role] ([ID])
GO
ALTER TABLE [dbo].[Vets] CHECK CONSTRAINT [FK_Vets_Role]
GO
USE [master]
GO
ALTER DATABASE [APP] SET  READ_WRITE 
GO

Answer 1

The mappedBy attribute in your @OneToOne in class Person, should point to class User's reference to Person which you've declared as "hPerson".

public class Person
{
    ...
    @OneToOne(mappedBy = "user")
    private User User;

should be

    ...
    @OneToOne(mappedBy = "hPerson")
    private User User;

As declared, you're saying that User owns the relationship with Person.

Answer 2

According to the JavaDocs for @OneToOne there are two use cases for having a one-to-one relationship between two normal (ie, not embedded or component) entity classes:

Case 1 : The two classes share the primary key. This is modeled as:

@Entity
class User {
  @Id
  private Long id;

  @OneToOne
  private Person person;
}

@Entity
class Person {
  @Id
  private Long id;

  @OneToOne
  private User user;
}

Depending on the business rules of the domain and the class model, other optional information may be added, such as @OneToOne(optional = true) or @OneToOne @MapsId (see the JavaDocs for details). However, this basic model works.

Case 2 : The two classes have a logical one-to-one relationship through foreign keys. This is modeled as:

@Entity
class User {
  @Id
  private Long id;

  @OneToOne
  @JoinColumn(name = "person_id")
  private Person person;
}

@Entity
class Person {
  @Id
  private Long id;

  @OneToOne(mappedBy = "person")
  @JoinColumn(name = "user_id")
  private User user;
}

In this case, the owned entity must declare how the owner entity refers to its instances by including the mappedBy attribute on @OneToOne . In the example above, it is assumed that User is the owner of the relationship and Person is the owned entity (thereby requiring mappedBy on the Person side).

Comparing the two examples, it can be seen that modeling the one-to-one relationship using a foreign key column requires the use of a @JoinColumn annotation on the side that has the foreign key.

---

What you have is a hybrid of these two cases. In your entity model, User does not have a foreign key column to Person but Person does have a foreign key column back to the User . Therefore, the simplest model can be developed by using User definition from the first example above and Person definition from the second example:

@Entity
class User {
  @Id
  private Long id;

  @OneToOne
  private Person person;
}

@Entity
class Person {
  @Id
  private Long id;

  @OneToOne
  @JoinColumn(name = "user_id")
  private User user;
}

See classes User and Person in this sample app . You can run the associated JUnit test cases or check the CI build status to ensure that the associations are working correctly.