是否可以在纯JPA中进行类型转换（从boolean到yes_no）？ [英] Is it possible to do type conversion (from boolean to yes_no) in pure JPA?

问题描述

Hibernate中有一个注释，它可以在数据库中将布尔类型保存为'Y'/'N'。

https://stackoverflow.com/questions/1154833/configure-hibernate-using-jpa-to-store-yn-for-type-boole
an-instead-然而，如果我不想绑定到Hibernate，有没有办法在纯JPA中执行它，而不使用getters / setters

解决方案

纯粹的没有Hibernate的JPA是通过使用某种转换来实现的

 启用了私有布尔值; 
 
 @Transient 
 public boolean isEnabled（）{
 return this.enabled; 
} 
 public void setEnabled（boolean enabled）{
 this.enabled = enabled; 
 
 
 @Column（name =ENABLED）
 public String getEnabledAsString（）{
 return enabled？ Y：N; 
} 
 
 public void setEnabledAsString（String enabled）{
 this.enabled =Y.equalsIgnoreCase（enabled）; 
} 
  

其他任何

There is an annotation in Hibernate that can persist boolean types as 'Y'/'N' in the database.

https://stackoverflow.com/questions/1154833/configure-hibernate-using-jpa-to-store-y-n-for-type-boole an-instead-of-0-1

However if I don't want to bind to Hibernate is there a way to do it in pure JPA without using getters/setters?

解决方案

Pure JPA without Hibernate is achieved by using some kind of conversion

private boolean enabled;

@Transient
public boolean isEnabled() {
    return this.enabled;
}
public void setEnabled(boolean enabled) {
    this.enabled = enabled;
}

@Column(name="ENABLED")
public String getEnabledAsString(){
    return enabled ? "Y" : "N";
}

public void setEnabledAsString(String enabled){
    this.enabled = "Y".equalsIgnoreCase(enabled);
}

Nothing else

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