Need help with Hibernate? Read this first:
http://www.hibernate.org/ForumMailingli ... AskForHelp

Hibernate version: 3.2.4.GA
Hibernate Annotation version: 3.4.0.GA

Hi, I am trying to use Embedded Objects/Components in annotation. In the code snippet below, I am trying to save only the name of countries that I have lived in. (Not the other properties of country, like flagColor).


public class Address implements Serializable {
String city;
@Embedded
@AttributeOverrides({
@AttributeOverride(name="name", column = @Column(name="COUNTRY_NAME_1"))
})
Country country_lived_1;

@Embedded
@AttributeOverrides({
@AttributeOverride(name="name", column = @Column(name="COUNTRY_NAME_2"))
})
Country country_lived_2;
}

@Embeddable
public class Country implements Serializable {
@Column(name="countryName") private String name;
private String flagColor;

public String getName() { return name; }
public void setName(String name) { this.name = name; }

public String getFlagColor() { return flagColor; }
public void setFlagColor(String flagColor) { this.flagColor = flagColor; }
}

Error I got is :
org.hibernate.MappingException: Repeated column in mapping for entity: Address column: flagColor (should be mapped with insert="false" update="false")

It seems that all properties of country has to be defined in @AttributeOverrides, even though flagColor is not needed here.

Is there any way that only the name of the country can be retrieved from Country?

Thanks!

Country is mapped to both a name and a flagColor; when you override the name property, I suspect that flagColor's mapping is unaffected, so it's looking for the mapped column in your Address's table (which won't exist). If you were mapping Country normally (without overrides), you'd mark it as @Transient, so I believe you need to do the same here, using @TransientOverride(name="flagColor", transient = true) on your Country objects within Address.

I haven't actually tried this, so I can't be sure it'll do the trick, but it seems logical to a fellow newbie...