@Entity
@Table(name = "adam_importfile")
@IdClass(BusinessAdviserFileId.class)
public class BusinessAdviserFile {

@Id  
private String hash;

@JsonIgnore  
@Id  
@ManyToOne(fetch = FetchType.LAZY)  
private Store store;  

}

public class BusinessAdviserFileId implements Serializable {

private String hash;

private Long store;  

}