我们有一个遗留表,我们不希望它通过添加鉴别器列来更改。 是否有没有鉴别器列的tablePerHierarchy。休眠状态下没有鉴别器列的tablePerHierarchy策略
下面是我的父母和子女类代码
@Entity
@Table(name = “SHAPE1”) @Inheritance(策略= InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(NAME = “鉴别”,discriminatorType = DiscriminatorType.STRING) @DiscriminatorValue(值= “S”)
公共类Shape {
@Id
@Column(name = "Shape_Id")
int shapeId;
@Column(name = "Shape_Name")
String shapeName;
public Shape() {
}
public Shape(int id, String shapeName) {
this.shapeId = id;
this.shapeName = shapeName;
}
// getters and setters
}
下面是我的子类
@Entity
@DiscriminatorValue(值= “R”) 公共类矩形延伸的部分{
@Column(name = "Rectangle_Length")
int length;
@Column(name = "Rectangle_Breadth")
int breadth;
// getters and setters
public Rectangle() {
}
public Rectangle(int id, String shapeName, int length, int breadth) {
super(id, shapeName);
this.length = length;
this.breadth = breadth;
}
// getters and setters
}
你可以看到我上面的示例我不得不使用鉴别器。 如果有谁知道有没有tablePerHierarchy鉴别列请帮我