通用实体,超类:
@MappedSuperclass
public abstract class GenericEntity {
private Integer id;
public Integer getId() {return id;}
public void setId(Integer id) {this.id = id;}
}
pojo:
@Entity
@Table(name = "POJO_ONE")
@SequenceGenerator(name = "HB_SEQ_POJO_ONE", sequenceName = "SEQ_POJO_ONE", allocationSize = 1)
public class PojoOne extends GenericEntity {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "HB_SEQ_POJO_ONE")
@Column(name = "ID")
@AttributeOverride(name = "id", column = @Column(name = "ID"))
private Integer id;
@Override
public Integer getId() {return id;}
}
我尝试使用那些注释:@ AttributeOverride,@ Id等,但是它不起作用。你能帮助我吗?我想覆盖属性“ id”以通过pojo / table指定另一个列名和一个序列。最好的方法是什么?
试试这个,代替
@MappedSuperclass
public abstract class GenericEntity {
private Integer id;
...
public Integer getId() {return id;}
public void setId(Integer id) {this.id = id;}
}
@Entity
@Table(name = "POJO_ONE")
@SequenceGenerator(name = "HB_SEQ_POJO_ONE", sequenceName = "SEQ_POJO_ONE", allocationSize = 1)
@AttributeOverride(name = "id", column = @Column(name = "ID"))
public class PojoOne extends GenericEntity {
// we should not define id here again
...
@Override
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "HB_SEQ_POJO_ONE")
public Integer getId() {return id;}
}
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