The generic entity, super class:
@MappedSuperclass public abstract class GenericEntity { private Integer id; public Integer getId() {return id;} public void setId(Integer id) {this.id = id;} }
The 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;} }
I try to use thoses annotations : @AttributeOverride, @Id, … but It doesn’t work. Can you help me? I want to override the attribute “id” to specify another column name and a sequence by pojo/table. What is the best way to do that?
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Answer
Try this, instead
@MappedSuperclass public abstract class GenericEntity { protected 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;} }