自动为@Embeddable类的列名添加前缀 [英] Automatically Add a Prefix to Column Names for @Embeddable Classes

问题描述

我正在开发一个项目，通过添加Hibernate注释来坚持一些POJO。我遇到的一个问题是，像这样的代码会失败，因为Hibernate试图将 Time_T 中的子字段映射到同一列（即 startTime.sec 和 stopTime.sec 都尝试映射到colum sec ，导致

  @Entity 
 public class ExampleClass 
 {
 @Id 
 long eventId; 
 
 Time_T startTime; 
 Time_T stopTime; 
} 
 
 @Embeddable 
 public class Time_T 
 {
 int sec; 
 int nsec; 
 
 
 
 
 
 $ b因为在整个系统中会出现很多像这样的事情，如果有一个选项可以自动将前缀附加到列名称（例如，使列为 startTime_sec ， startTime_nsec ，  stopTime_sec ， stopTime_nsec ），而不必对每个字段应用覆盖。 Hibernate是否具有这种能力，或者是否还有其他合理的解决方法？尝试设置属性解决方案 
尝试设置属性 hibernate.ejb.naming_strategy 至 org.hibernate.cfg.DefaultComponentSafeNamingStrategy  
 
I am developing a project in which I am persisting some POJOs by adding Hibernate annotations. One problem I am running into is that code like this fails, as Hibernate tries to map the sub-fields within the Time_T onto the same column (i.e. startTime.sec and stopTime.sec both try to map to the colum sec, causing an error).
@Entity
public class ExampleClass
{
  @Id
  long eventId;

  Time_T startTime;
  Time_T stopTime;
}

@Embeddable
public class Time_T
{
  int sec;
  int nsec;
}
As there will be many occurrences like this throughout the system, it would be nice if there was an option to automatically append a prefix to the column name (e.g. make the columns be startTime_sec, startTime_nsec, stopTime_sec, stopTime_nsec), without having to apply overrides on a per-field basis. Does Hibernate have this capability, or is there any other reasonable work-around?
解决方案
Try setting the property hibernate.ejb.naming_strategy to org.hibernate.cfg.DefaultComponentSafeNamingStrategy

                        
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