Question

我正在制作基于JPA / Eclipselink和实体的应用程序，并且删除操作必须是逻辑的（属性/列为true或false）才能在数据库中保留日志。我想知道是否有可能忽略数据库的行＆＃34;删除＆＃34;是＆＃34;真＆＃34;在关系OneToMany或ManyToMany。我有类似以下的实体：

@Entity
public class Employee {
  @Id
  @Column(name="EMP_ID")
  private long id;
  ...
  @OneToMany(mappedBy="owner")
  private List<Phone> phones;
  ...
}

@Entity
public class Phone {
  @Id
  private long id;

  @NotNull
  @Column(name = "deleted")
  private boolean deleted = false;
  ...
  @ManyToOne(fetch=FetchType.LAZY)
  @JoinColumn(name="OWNER_ID")
  private Employee owner;
  ...
}

提前致谢！

Answer 1

是的，您可以将@AdditionalCriteria用于此目的：

libboost_system.so.1.49.0 => /usr/lib/libboost_system.so.1.49.0 
libboost_regex.so.1.49.0 => /usr/lib/libboost_regex.so.1.49.0 
libboost_program_options.so.1.49.0 => /usr/lib/libboost_program_options.so.1.49.0
libboost_chrono.so.1.49.0 => /usr/lib/libboost_chrono.so.1.49.0

JPA忽略按列值

1 个答案: