是否可以在同一个实体类中维护不同的模式

Question

I have two schema(claim and policy). For both schema am using same Entity class. My problem is, claim schema has column city but policy schema does have city column. So If I use entity class by policy schema I get error. is this only the way to change the Entity class for each schema ? or is it possible to maintain the different schema in same entity class?

My Entity class :

@Entity
@Table(name = "Table_name")
public class X {

   @Id
   @GeneratedValue(strategy=GenerationType.AUTO)
   @Column(name = "xxx")
   private int xxx;

   @Column(name = "yyy")
   private String yyy;

   @Column(name = "city")
   private String city;      // only claim schema 
 }  

I get the schema like this,

if(id.startsWith("SW")){
                session = getSWSession();
}
if(id.startsWith("HW")){
                session = getHWSession();
}

Answer 1

您需要为不同的模式使用两个不同的映射，因此您必须创建两个Java映射类，并使用Table批注对它们进行批注，以标记每个特定实体的模式 。