我有一个对象(Person),我试图使用Hibernate保存到数据库。 Person有一个Hibernate UserType对象。我无法将Person保存到数据库,我认为问题是UserType。
我已经记录了Sql以查看发生了什么,我注意到记录器已跳过UserType参数。这是因为该值未发送到数据库吗?
insert into person_detail (code, person_type, person_id, name) values (?, ?, ?, ?)
22.01.15 16:16:41 TRACE [main] >> [org.hibernate.type.descriptor.sql.BasicBinder] binding parameter [1] as [VARCHAR] - J1
22.01.15 16:16:41 TRACE [main] >> [org.hibernate.type.descriptor.sql.BasicBinder] binding parameter [3] as [NUMERIC] - 99
22.01.15 16:16:41 TRACE [main] >> [org.hibernate.type.descriptor.sql.BasicBinder] binding parameter [4] as [NUMERIC] - Joe
> <typedef name='PersonType' class='com.TypedefEnumUserTyp'> <param
> name='enumClassNam'>com.PersonType</param> </typedef>
<subclass name="Person" discriminator-value="PERSON">
<join table="person_detail">
<key column="person_id" />
<property name="person_type" column="person_type" type="PersonType/>
<property name="code" column="code" />
<property name="name" column="name" />
</join>
</subclass>
public class TypedefEnumUserType extends AbstractToStringUserType implements UserType, Serializable, ParameterizedType {
private Class enumClass;
public void setParameterValues(Properties params) {
this.enumClass = classForProp("enumClassName", params);
}
public final String toString(Object value) throws HibernateException {
if (value == null) {
return null;
}
if (value instanceof Enum) {
final Enum eValue = (Enum) value;
return eValue.name();
}
else {
final String valueClass = value.getClass().getName();
throw new IllegalArgumentException("Error trying to convert value to String. Expected instance of Enum, but got " + valueClass);
}
}
@SuppressWarnings("unchecked")
public final Object fromString(String cached) throws HibernateException {
if (cached == null) {
return null;
}
try {
return Enum.valueOf(enumClass, cached);
}
catch (IllegalArgumentException iae) {
throw new SerializationException(enumClass.getName() + " value in database is invalid: " + cached, iae);
}
}
}
答案 0 :(得分:0)
原来我的记录一直在保存。单元测试是在保存后立即删除我的记录所以我认为它没有被保存。我将测试包装在一个事务中,在它运行后回滚。傻我。