@Entity
@DynamicInsert
@DynamicUpdate
@SelectBeforeUpdate
@Table(name="CONTRACTS")
@Audited
public class Contract implements Serializable {
    private static final long serialVersionUID = 1L;

    private List<DesignContract> designs;
    @OneToMany(mappedBy = "pk.contract", fetch = FetchType.EAGER, cascade = {CascadeType.ALL}, orphanRemoval=true)
    @Fetch(value = FetchMode.SUBSELECT)
    public List<DesignContract> getDesigns() {
        return designs;
    }
    public void setDesigns(List<DesignContract> designs) {
        this.designs= designs;
    }
}


@Entity
@AssociationOverrides({
        @AssociationOverride(name = "pk.contract",
                joinColumns = @JoinColumn(name = "FK_CONTRACT")),
        @AssociationOverride(name = "pk.design",
                joinColumns = @JoinColumn(name = "FK_DESIGN")) })
@Table(name="CONTRACT_DESIGNS")
@Audited
public class DesignContract implements Serializable {
    private static final long serialVersionUID = 1L;

    public DesignContract () {

    }
    public DesignContract (Contract contract, Design design) {
        pk.setContract(contract);
        pk.setDesign(design);
    }

    private DesignContractId pk = new DesignContractId();
    @EmbeddedId
    public DesignContractId getPk() {
        return pk;
    }
    public void setPk(DesignContractId pk) {
        this.pk = pk;
    }

    @Transient
    public Contract getContract() {
        return getPk().getContract();
    }
    public void setContract(Contract contract) {
        getPk().setContract(contract);
    }

    @Transient
    public Design getDesign() {
        return getPk().getDesign();
    }
    public void setDesign(Design design) {
        getPk().setDesign(design);
    }

    private Double goal;
    @Column(name = "GOAL", nullable = true, insertable = true, updatable = true, precision = 5, scale = 2)
    @Basic
    public Double getGoal() {
        return this.goal;
    }
    public void setGoal(Double goal) {
        this.goal = goal;
    }
}

@Embeddable
public class DesignContractId implements Serializable {
    private static final long serialVersionUID = 1L;

    private Contract contract;
    private Design design;

    @ManyToOne
    public Contract getContract() {
        return contract;
    }
    public void setContract(Contract contract) {
        this.contract = contract;
    }

    @ManyToOne
    public Design getDesign() {
        return design;
    }
    public void setDesign(Design design) {
        this.design = design;
    }
}