Hibernate version:
Hibernate 3.2
Hibernate Annotations 3.2.0.CR2

Name and version of the database you are using:
McKoi Database v.1.0.3

The Problem
I'm trying to save two entities in the database.
They have a One-to-One relationship sharing primary keys, but their values stored in the database differ.
When i saw that i tried to use an incremental @GenericGenerator in one of the classes and a foreign @GenericGenerator in the other,
but i don't know how to make it work.

The Code
This is a short example of code, assuming that class/variables names and database table/field names are the same.

I saw an example (I'm not really sure if it was) in a taiwanese forum and tried to apply it to my code.
Here's the URL: http://www.javaworld.com.tw/jute/post/view?bid=54&id=205471

Here's the code:

NOTE: In my code both PK's have the same name.

//FIRST CLASS

@Entity
@Table(name = "Body")
public class Body implements java.io.Serializable{

private int body_PK;
private Heart heart;

public Body() {
}

@Id
@GeneratedValue(generator = "BodyPKGenerator")
@GenericGenerator(name="BodyPKGenerator",
strategy = "increment")
public int getBody_PK() {
return body_PK;
}

public void setBody_PK(int body_PK) {
this.body_PK = body_PK;
}

@OneToOne(cascade = CascadeType.ALL)
@PrimaryKeyJoinColumn
public Heart getHeart() {
return heart;
}

public void setHeart(Heart heart) {
this.heart = heart;
}

}

//SECOND CLASS

@Entity
@Table(name = "Heart")
public class Heart implements java.io.Serializable{

private int Heart_PK;
private boolean healthy;

public Heart(){
}

@Id @GeneratedValue(generator="foreign")
@GenericGenerator(
name = "foreign",
strategy = "foreign",
parameters = @Parameter(name = "property", value = "body")
)
public int getHeart_PK() {
return Heart_PK;
}
@OneToOne(cascade = CascadeType.ALL, mappedBy = "heart")
private Body body;

public void setHeart_PK(int Heart_PK) {
this.Heart_PK = Heart_PK;
}

public boolean isHealthy() {
return healthy;
}

public void setHealthy(boolean healthy) {
this.healthy = healthy;
}

}

The Error
org.hibernate.HibernateException: Unable to resolve property: heart


I'm pretty sure that i've missed something and any help will be appreciated.

Thanks in advance and sorry for my bad english.

Make sure that

mappedBy = "heart" , the column heart is part of both tables.


Can you post your hbm.xml?

public class HibernateUtil {

private static final SessionFactory sessionFactory;
static {
try {
Properties myDbConfiguration = new Properties();

myDbConfiguration.put("hibernate.dialect","org.hibernate.dialect.MckoiDialect");
myDbConfiguration.put("hibernate.connection.driver_class","com.mckoi.JDBCDriver");
myDbConfiguration.put("hibernate.connection.url","jdbc:mckoi:local://C:/PCNutricion/nutriciondb.conf");
myDbConfiguration.put("hibernate.connection.username","admin_user");
myDbConfiguration.put("hibernate.connection.password","aupass00");


sessionFactory = new AnnotationConfiguration()
.addPackage("medical.pojos")
.addAnnotatedClass(Body.class)
.addAnnotatedClass(Heart.class)
...
.buildSessionFactory();
} catch (Throwable ex) {

throw new ExceptionInInitializerError(ex);
}
}
public static Session getSession()
throws HibernateException {
return sessionFactory.openSession();
}

}

It's mapped in HibernateUtil.java using AnnotatedClasses.

Field heart in both classes?

Do I need to create a new Heart heart inside the Heart class?

And thanks for reading & answering :)