@Entity
public class ServiceProvider implements Serializable{
   
   private Long id;   
   private Set<BusinessLocation> businessLocations = new HashSet<BusinessLocation>();

   @Id
   @GeneratedValue
   public Long getId() {
      return id;
   }
   public void setId(Long id) {
      this.id = id;
   }

   @OneToMany(mappedBy="serviceProvider", targetEntity=BusinessLocation.class, cascade=CascadeType.ALL, fetch=FetchType.EAGER)
   public Set<BusinessLocation> getBusinessLocations() {
      return businessLocations;
   }

   public void setBusinessLocations(Set<BusinessLocation> businessLocations) {
      this.businessLocations = businessLocations;
   }

   public boolean equals(Object obj) {
      if(!(obj instanceof ServiceProvider)) return false;
      ServiceProvider other = (ServiceProvider) obj;
      return new EqualsBuilder().append(businessLocations, other.businessLocations).isEquals();
   }
}

@Entity
public class BusinessLocation implements Serializable{
   
   private Long id;
   private String address;
   private String city;
   private State state;
   private String pincode;
   private ServiceProvider serviceProvider;
   
   public BusinessLocation() {      
   }
   
   @Id
   @GeneratedValue
   public Long getId() {
      return id;
   }
   public void setId(Long id) {
      this.id = id;
   }
   public String getAddress() {
      return address;
   }
   public void setAddress(String address) {
      this.address = address;
   }
   public String getCity() {
      return city;
   }
   public void setCity(String city) {
      this.city = city;
   }
   
   @ManyToOne(cascade=CascadeType.ALL)
   @JoinColumn(name="state_id")
   public State getState() {
      return state;
   }
   public void setState(State state) {
      this.state = state;
   }   
   public void setPincode(String pincode) {
      this.pincode = pincode;
   }

   public String getPincode() {
      return pincode;
   }
   
   @ManyToOne
   @JoinColumn(name="serviceProvider_id")
   public ServiceProvider getServiceProvider() {
      return serviceProvider;
   }
   public void setServiceProvider(ServiceProvider serviceProvider) {
      this.serviceProvider = serviceProvider;
   }
   
   public boolean equals(Object obj) {
      if( !(obj instanceof BusinessLocation)) return false;
      BusinessLocation other = (BusinessLocation) obj;      
      return new EqualsBuilder().append(address, other.address).append(city, other.city).append(state, other.state).append(pincode,

other.pincode).append(serviceProvider, other.serviceProvider).isEquals();
   }
   
   public int hashCode() {
      return new HashCodeBuilder().append(address).append(city).append(state).append(pincode).append(serviceProvider).toHashCode();
   }
}

@Entity
public class State implements Serializable {
   
   private Long id;
   private String abbreviatedName;
   private String name;
   private List<BusinessLocation> businessLocations;
   
   @Id
   @GeneratedValue   
   public Long getId() {
      return id;
   }
   public void setId(Long id) {
      this.id = id;
   }
   public String getAbbreviatedName() {
      return abbreviatedName;
   }
   public void setAbbreviatedName(String abbreviatedName) {
      this.abbreviatedName = abbreviatedName;
   }
   public void setName(String name) {
      this.name = name;
   }
   
   public String getName() {
      return name;
   }

   
   @OneToMany(mappedBy="state", targetEntity=BusinessLocation.class, cascade=CascadeType.ALL, fetch=FetchType.EAGER)
   public List<BusinessLocation> getBusinessLocations() {
      return businessLocations;
   }
   public void setBusinessLocations(List<BusinessLocation> businessLocations) {
      this.businessLocations = businessLocations;
   }
   
   public boolean equals(Object obj) {
      if(! (obj instanceof State)) return false;
      State other = (State) obj;
      return new EqualsBuilder().append(abbreviatedName, other.abbreviatedName).append(name, other.name).append(businessLocations,

other.businessLocations).isEquals();
   }
   
   public int hashCode() {
      return new HashCodeBuilder().append(name).append(abbreviatedName).append(businessLocations).toHashCode();
   }

}