如何持久化枚举值而不是Ordinal

Question

我试图在数据库中持久化ack(Enum)的值，但是当它持久化时，它接受序数值而不是值本身。我可以做什么来保存值而不是Ordinal？以下是我的类：

转换器

@Convert
public class AnomalieAckConverter implements AttributeConverter<AnomalieAck, Integer> {

    /**
     * @param attribute
     * @return
     * @see javax.persistence.AttributeConverter#convertToDatabaseColumn(java.lang.Object)
     */
    @Override
    public Integer convertToDatabaseColumn(AnomalieAck anoAck) {
        // TODO Auto-generated method stub
        // return anoAck.getValue();
        return null;
    }

    /**
     * @param dbData
     * @return
     * @see javax.persistence.AttributeConverter#convertToEntityAttribute(java.lang.Object)
     */
    @Override
    public AnomalieAck convertToEntityAttribute(Integer ack) {
        // TODO Auto-generated method stub
        // return AnomalieAck.getByValue(ack);

        return null;

    }

枚举：

public enum AnomalieAck {

    NON_ACQUITTEE(0),

    ACQUITTEE_APP1 (1),

    ACQUITTEE_APP2(2),

    /** Aacquittee en erreur. */
    ACQUITTEE_ERREUR(10),


    private int ack = 0;

  private AnomalieAck() {

    }

  private AnomalieAck(final int value) {
    this.ack = value;
   }
  public int getValue() {
        return this.ack;
    }

  public void setAck(int ack) {
        this.ack = ack;
    }

public static AnomalieAck getByValue(int ackNumero) {
    for (final AnomalieAck ackitement : AnomalieAck.values()) {

        if (ackitement.getValue() == ackNumero) {
            return ackitement;
        }
    }

Java类：

@Column(name = "ANO_ACK")
@Convert(converter = AnomalieAckConverter.class)
private AnomalieAck ack = AnomalieAck.NON_ACQUITTEE;

有没有办法让hibernate持久化数值而不是序数值？

Answer 1

使用此转换器进行本地测试：

import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

@Converter
public class AnomalieAckConverter implements AttributeConverter<AnomalieAck, Integer>
    {

        @Override
        public Integer convertToDatabaseColumn(final AnomalieAck attribute)
        {
            return attribute.getValue();
        }


        @Override
        public AnomalieAck convertToEntityAttribute(final Integer dbData)
        {
            return AnomalieAck.getByValue(dbData);
        }
}

和此实体字段定义

    @Column(name = "ANO_ACK")
    @Convert(converter = AnomalieAckConverter.class)
    private AnomalieAck ack = AnomalieAck.ACQUITTEE_ERREUR;

则保持枚举中的ACK值而不是序数。您提供的代码示例是否为您重现了该问题？