EclipseLink/UserGuide/MOXy/Relationships/Privately Owned/One-to-One

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Examples

• One-to-one

One-to-One Composite Collection Mapping

With EclipseLink Annotations

Use the @OneToOne annotation:

@Entity
public class Employee {
 
    @OneToOne(mappedBy="resident")
    private Address residence;
 
}

Use the EclipseLink extension @XmlInverseReference to map the back-pointer:

@Entity
public class Address {
 
    @OneToOne
    @JoinColumn(name="E_ID")
    @XmlInverseReference(mappedBy="residence")
    private Employee resident;
 
}

Version: 2.2.0 DRAFT
Other versions...

Privately owned	Privately owned	One-to-many
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