Hey everyone - i have a simple persistence mapping question which i am unsure
about:
I have a Category class which can many images - an image can only be in one
category. How do i map this? I've had a go but not sure if i'm correct:
===== Category.class ======
@Entity
@Table(name="categories")
public class Category extends BaseObject {
protected Set<Image> images = new HashSet<Image>();
//getter
@OneToMany(
targetEntity=Image.class,
mappedBy="???"
)
public Set<Image> getImages(){
return images;
}
}
===== Image.class =====
public class Image extends BaseObject {
protected Long categoryId;
//getter
public Long getCategoryId() {
return categoryId;
}
}
Thats as far as i have got? Do i need a join table? Surely if the Image
object just contains a category ID that will be fine? Any suggestions about
how to map this would be very greatful :)
Many Thanks Sion
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