JPA query optimization

[debraj mallick]

hi all,

i have a table "Semiproduct" and have the id of the "Semiproduct", in tables "SemiproductSales" and "SupplyArea" as foreign key, say for example

@Entity
public  class Semiproduct{
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Basic(optional = false)
    @Column(name = "ID", nullable = false)
    private Long id;

    @Basic(optional = false)
    @Column(name = "text")
    private String text;

   @OneToMany(cascade = CascadeType.ALL, mappedBy = "semiproduct")
    private Set<SemiproductSales> semiproductSales;

    @OneToMany(cascade = CascadeType.ALL, mappedBy = "semiproduct")
    private Set<SupplyArea> supplyArea;
}

entities "SemiproductSales" and "SupplyArea" have multiple "Semiproduct". Now when query on SemiproductSales

Query query = getEntityManager().createQuery("SELECT sps FROM SemiproductSales as sps WHERE sps.semiproduct=:semi");
        query.setParameter("semi", semiproduct);
        return query.getResultList();

multiple queries are generated which reduces the performance, if the query result set is 5000 then 5001 queries are generated. what should i do?
I am using Hibernate implementation of JPA,
any help would be appreciated.