Omitted @hibernate.typdef tag in a @hibernate.joined-subclass
-------------------------------------------------------------
Key: XDP-133
URL: http://jira.codehaus.org/browse/XDP-133
Project: XDoclet 2 Plugins
Type: Bug
Components: hibernate
Versions: 1.0.2
Environment: Windows XP, ANT 1.6.5, Eclipse 3.1.1
Reporter: Christoph Adl
The problem is that if I use the @hibernate.typdef tag in a
@hibernate.joined-subclass tag it does not lead to any XML output in the
generated mapping file. Example:
==== BaseClass.java ====
package at.arcsmed.kio.beans;
/**
* @hibernate.class
* table = "Base_Class"
*/
public class BaseClass {
/**
* @hibernate.id
* generator-class = "native"
*/
private int id;
/**
* @return Returns the id.
*/
public int getId() {
return id;
}
/**
* @param id The id to set.
*/
public void setId(int id) {
this.id = id;
}
}
==== DerivedClass.java ====
package at.arcsmed.kio.beans;
// i've used the GenericEnumUserType from http://hibernate.org/272.html
/**
* @hibernate.joined-subclass
* table = "DerivedClass"
*
* @hibernate.typedef
* name = "TestEnumType"
* class = "at.arcsmed.kio.beans.enums.GenericEnumUserType"
* @hibernate.typedef-param
* typedef-name = "TestEnumType"
* name = "enumClass"
* value = "at.arcsmed.kio.beans.DerivedClass$TestEnum"
*/
public class DerivedClass extends BaseClass {
public enum TestEnum {
Value1, Value2
}
/**
* @hibernate.property
* type = "TestEnumType"
*/
private TestEnum test;
/**
* @return Returns the test.
*/
public TestEnum getTest() {
return test;
}
/**
* @param test The test to set.
*/
public void setTest(TestEnum test) {
this.test = test;
}
}
==== BaseClass.hbm.xml (generated via xdoclet2 1.0.2) ====
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd";>
<hibernate-mapping>
<class table="Base_Class" name="at.arcsmed.kio.beans.BaseClass">
<id name="id">
<generator class="native"/>
</id>
<joined-subclass name="at.arcsmed.kio.beans.DerivedClass"
table="DerivedClass">
<key/>
<property name="test" type="TestEnumType"/>
</joined-subclass>
</class>
</hibernate-mapping>
=============
There is no sign of my typedef :-(. While creating the example i realised, that
there is a problem with the ANT integration as well. If i make changes to the
DerivedClass.java-File, the BaseClass.hbm.xml file is not re-generated! This
problem is probably a result of the fact, that the DerivedClass-Mapping must be
included in the mapping file of BaseClass (a speciality of the Hibernate DTD).
The solution is, to create the typedef-element in BaseClass.hbm.xml outside the
class element (this must happen for the whole inheritance tree - so for
joined-subclass elements in joined-subclass elements as well). So here is the
proper BaseClass.hbm.xml file:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd";>
<hibernate-mapping>
<typedef class="at.arcsmed.kio.beans.enums.GenericEnumUserType"
name="TestEnumType">
<param name="enumClass">at.arcsmed.kio.beans.DerivedClass$TestEnum</param>
</typedef>
<class table="Base_Class" name="at.arcsmed.kio.beans.BaseClass">
<id name="id">
<generator class="native"/>
</id>
<joined-subclass name="at.arcsmed.kio.beans.DerivedClass"
table="DerivedClass">
<key/>
<property name="test" type="TestEnumType"/>
</joined-subclass>
</class>
</hibernate-mapping>
As a result of the missing typedef I get an error during the creation of the
database schema with hibernate:
Exception in thread "main" org.hibernate.MappingException: Could not determine
type for: TestEnumType, for columns: [org.hibernate.mapping.Column(test)]
[java] at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:265)
[java] at org.hibernate.mapping.Column.getSqlTypeCode(Column.java:128)
[java] at org.hibernate.mapping.Column.getSqlType(Column.java:172)
[java] at org.hibernate.mapping.Table.sqlCreateString(Table.java:263)
[java] at
org.hibernate.cfg.Configuration.generateSchemaCreationScript(Configuration.java:669)
[java] at
org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:65)
[java] at
org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:49)
[java] at
at.arcsmed.kio.test.HibernateSchema.createSchema(HibernateSchema.java:29)
[java] at at.arcsmed.kio.test.HibernateSchema.main(HibernateSchema.java:24)
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