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Hibernate:使用JPA的单个实体中的两个序列_Hibernate_Jpa_Sequence_Hibernate Annotations - Fatal编程技术网

Hibernate:使用JPA的单个实体中的两个序列

Hibernate:使用JPA的单个实体中的两个序列,hibernate,jpa,sequence,hibernate-annotations,Hibernate,Jpa,Sequence,Hibernate Annotations,我有一个使用JPA注释的映射类,我希望它对两个字段使用两个单独的序列: @Entity @Table(name="my_table", schema="schema") @SequenceGenerator(name="sequence",sequenceName="schema.local_key_sequence") @SequenceGenerator(name="orderSequence",sequenceName="schema.message_received_sequence"

我有一个使用JPA注释的映射类,我希望它对两个字段使用两个单独的序列:

@Entity
@Table(name="my_table", schema="schema") 
@SequenceGenerator(name="sequence",sequenceName="schema.local_key_sequence")
@SequenceGenerator(name="orderSequence",sequenceName="schema.message_received_sequence")
public class MyClass
{
    @Id
    @Column(name="unique_key",unique=true)
    @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="sequence")
    private long id; 

    @Column(name="sequence_received")        
    @GeneratedValue( strategy = GenerationType.SEQUENCE,generator="orderSequence" )
    private long sequenceReceived;
    [...]
}
但是,JPA禁止我在实体中使用
@SequenceGenerator
。我该怎么做呢


注意:为了澄清,我希望ID是从
local\u key\u sequence
的下一个值自动生成的,sequenceReceived是从
message\u received\u sequence
自动生成的。您只能在主键上使用由数据库值生成的

但是,如果只有字段sequenceReceived也是Id(复合Id的一部分),Hibernate(Hibernate Annotations项目)可以支持此功能