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Hibernate version:
3.0.2
Mapping documents:
Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.txdx.pojo">
<class name="PatientPOJO" table="patients">
<id name="id" column="patient_id" type="long" unsaved-value="null">
<generator class="hilo"/>
</id>
<property name="salutation" type="string" length="4" not-null="true" />
<property name="firstName" type="string" length="25" not-null="true" />
<property name="initial" type="string" length="1" not-null="false"/>
<property name="lastName" type="string" length="25" not-null="true" />
... buncha others deleted ...
<property name="wwebsite" type="string" length="50" not-null="false"/>
<!-- TODO: link to authorized contact here, 1-to-1 contact null OK -->
<property name="serialVersionUID" type="long"/>
<bag name="Rxs" cascade="all" inverse="true" lazy="false" order-by="rxDate">
<key column="patient_id"/>
<one-to-many class="com.txdx.pojo.RxPOJO"/>
</bag>
<!--
<set name="Rxs" cascade="all" inverse="true" lazy="false">
<key column="patient_id"/>
<one-to-many class="com.txdx.pojo.Rx"/>
</set>
-->
</class>
</hibernate-mapping>
org.hibernate.MappingException: Unknown entity: com.txdx.database.Patient
at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:553)
at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1022)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:180)
at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:408)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:82)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:432)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:427)
at com.txdx.database.Retriever.savePatient(Retriever.java:85)
... my stuff from there on out
Name and version of the database you are using:MySQL, latest
The generated SQL (show_sql=true):Debug level Hibernate log excerpt:OK, this has GOT to be the simplest inheritence scenario ever. The mapping file above produces PatientPOJO, and I extend that class as follows:
Code:
package com.txdx.database;
public class Patient extends com.txdx.pojo.PatientPOJO {
static final long serialVersionUID = 1L;
public Patient() {
super();
}
public void setDOB(String dateString) {
...
}
}
I was doing this originally in hibernate 2.x, dropped the project, and have since restarted work on it, using hibernate 3. Anyuway, the only reason I extended the class is to put in some business functions so that I could rebuild the POJOs with hibernate. Like I said, THE simplest inheritance scheme ever. As you can see, I followed the inheritance rules as laid out in section 4.2 of the manual. The thing just won't save (saveorupdate). I did a sanity check by testing the instance with instanceof, and it is both a Patient and a PatientPOJO. When I cast it to PatientPOJO, I get the same error. When I assign a Patient to a PAtientPOJO, I get the same error. The only way to make this data persist is to instantiate a PatientPOJO and set its values with setters pulling from Patient getters. Ugh. I should be able to just persist Patient because it is also PatientPOJO, right?
I looked in the migration guide, and searched the forum, but if it's been answered before I didn't come up with the right keywords to get me to the thread.
--PK
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