AssociationOverrides (Java EE 5 SDK)

javax.persistence Annotation Type AssociationOverrides

@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface AssociationOverrides

This annotation is used to override mappings of multiple many-to-one or one-to-one relationship properties or fields.

    
    Example:
    @MappedSuperclass
    public class Employee {
    
        @Id protected Integer id;
        @Version protected Integer version;
        @ManyToOne protected Address address;
        @OneToOne protected Locker locker;
    
        public Integer getId() { ... }
        public void setId(Integer id) { ... }
        public Address getAddress() { ... }
        public void setAddress(Address address) { ... }
        public Locker getLocker() { ... }
        public void setLocker(Locker locker) { ... }
    
    }
    
    @Entity
    @AssociationOverrides({
    
    @AssociationOverride(name="address", 
            joinColumns=@JoinColumn("ADDR_ID")),
        @AttributeOverride(name="locker", 
            joinColumns=@JoinColumn("LCKR_ID"))})
    public PartTimeEmployee { ... }
 

从以下版本开始:

Java Persistence 1.0

value

public abstract AssociationOverride[] value

Mapping overrides of relationship properties or fields

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