Here is the code for the CustomerLevelUser Type.
Code:
public class CustomerLevelUserType extends DefaultUserType
{
private static final int[] SQL_TYPES={Types.VARCHAR};
public int[] sqlTypes(){ return SQL_TYPES;}
public Class returnedClass(){ return MakeType.class;}
public boolean equals(Object x, Object y) { return x==y;}
public int hashCode(Object o) throws HibernateException {
return 0; //To change body of implemented methods use File | Settings | File Templates.
}
public Object deepCopy(Object value) {return value;}
public boolean isMutable() { return false;}
public Serializable disassemble(Object o) throws HibernateException {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
public Object assemble(Serializable serializable, Object o) throws HibernateException {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
public Object replace(Object o, Object o1, Object o2) throws HibernateException {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
public abstract Object nullSafeGet(ResultSet resultSet,
String [] names,
Object owner)
throws HibernateException, SQLException;
public void nullSafeSet(PreparedStatement statement,
Object value,
int index)
throws HibernateException, SQLException
{
if (value==null)
{
statement.setNull(index, Types.VARCHAR);
} else
{
statement.setString(index, value.toString());
}
}
public Object nullSafeGet(ResultSet resultSet,
String [] names,
Object owner)
throws HibernateException, SQLException
{
String name=resultSet.getString(names[0]);
return resultSet.wasNull() ? null : CustomerLevel.getInstance(name);
}
}
Here is the code for the CustomerLevel Enumeration Class.
Code:
package com.merlin.common.data.hibernate.xdoclet;
import java.util.Map;
import java.util.HashMap;
/**
* Created by IntelliJ IDEA.
* User: richardwalsh
* Date: 14-Feb-2006
* Time: 09:35:15
* To change this template use File | Settings | File Templates.
* @hibernate.class
* table="CUSTOMER_LEVEL"
*/
public class CustomerLevel extends BaseDataType
{
public static CustomerLevel NORMAL=new CustomerLevel("NORMAL");
public static CustomerLevel BRONZE=new CustomerLevel("BRONZE");
public static CustomerLevel SILVER=new CustomerLevel("SILVER");
public static CustomerLevel GOLD=new CustomerLevel("GOLD");
public static CustomerLevel PLATINUM=new CustomerLevel("PLATINUM");
private static Map INSTANCES=new HashMap();
static
{
INSTANCES.put(NORMAL.toString(), NORMAL);
INSTANCES.put(BRONZE.toString(), BRONZE);
INSTANCES.put(SILVER.toString(), SILVER);
INSTANCES.put(GOLD.toString(), GOLD);
INSTANCES.put(PLATINUM.toString(), PLATINUM);
}
private Long id;
private String level;
public CustomerLevel(String level)
{
this.level=level;
}
/**
* @hibernate.id
* generator-class="native"
* column="customer_level_id"
*/
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
/**
* @hibernate.property
* column="LEVEL"
* type="com.merlin.common.data.hibernate.usertypes.CustomerLevelUserType"
*/
public String getLevel() {
return level;
}
public void setLevel(String level) {
this.level = level;
}
Object readResolve()
{
return getInstance(level);
}
public static CustomerLevel getInstance(String name)
{
return (CustomerLevel)INSTANCES.get(name);
}
}
Here is the Generated Customer.hbm.xml file that is included in the Hibernate.cfg.xml file. This as a maby-to-one assocication with the CustomerLevel Entity as can be seen in the mapping below.
Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping
>
<class
name="com.merlin.common.data.hibernate.xdoclet.Customer"
table="CUSTOMER"
>
<id
name="id"
column="customer_id"
type="java.lang.Long"
>
<generator class="native">
<!--
To add non XDoclet generator parameters, create a file named
hibernate-generator-params-Customer.xml
containing the additional parameters and place it in your merge dir.
-->
</generator>
</id>
<many-to-one
name="customerLevel"
class="com.merlin.common.data.hibernate.usertypes.CustomerLevelUserType"
cascade="save-update"
outer-join="true"
update="true"
insert="true"
column="CUSTOMER_LEVEL_ID"
/>
<property
name="customerStartDate"
type="java.util.Date"
update="true"
insert="true"
column="CUSTOMER_START_DATE"
/>
<many-to-one
name="contactDetails"
class="com.merlin.common.data.hibernate.xdoclet.ContactDetails"
cascade="save-update"
outer-join="true"
update="true"
insert="true"
column="CONTACT_DETAILS_ID"
/>
<bag
name="vehicles"
lazy="false"
inverse="true"
cascade="none"
>
<key
column="VEHICLE_ID"
>
</key>
<one-to-many
class="com.merlin.common.data.hibernate.xdoclet.Vehicle"
/>
</bag>
<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-Customer.xml
containing the additional properties and place it in your merge dir.
-->
</class>
</hibernate-mapping>
As you can see the HBM file says that the class is the CustomerLevelUserType, but the class that generates the HBM file is the CustomerLevel class. Again this is loosly based on "Using Enumerated Types" on page 209 in Hibernate In Action.
Here is the Full Stack Trace.
Code:
(cfg.Environment 464 ) Hibernate 3.0.5
(cfg.Environment 477 ) hibernate.properties not found
(cfg.Environment 510 ) using CGLIB reflection optimizer
(cfg.Environment 540 ) using JDK 1.4 java.sql.Timestamp handling
(cfg.Configuration 1110) configuring from resource: /hibernate.cfg.xml
(cfg.Configuration 1081) Configuration resource: /hibernate.cfg.xml
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/ContactDetails.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.ContactDetails -> CONTACT_DETAILS
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/Customer.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.Customer -> CUSTOMER
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/Vehicle.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.Vehicle -> VEHICLE
(cfg.HbmBinder 784 ) Mapping joined-subclass: com.merlin.common.data.hibernate.xdoclet.Car -> CAR
(cfg.HbmBinder 784 ) Mapping joined-subclass: com.merlin.common.data.hibernate.xdoclet.Truck -> TRUCK
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/CustomerLevel.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.CustomerLevel -> CUSTOMER_LEVEL
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/Garage.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.Garage -> GARAGE
(cfg.HbmBinder 1218) Mapping collection: com.merlin.common.data.hibernate.xdoclet.Garage.suppliers -> GARAGE_SUPPLIER
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/Supplier.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.Supplier -> SUPPLIER
(cfg.HbmBinder 1218) Mapping collection: com.merlin.common.data.hibernate.xdoclet.Supplier.garages -> GARAGE_SUPPLIER
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/Model.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.Model -> MODEL
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/ModelType.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.ModelType -> MODEL_TYPE
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/MakeType.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.MakeType -> MAKE_TYPE
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/BodyType.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.BodyType -> BODY_TYPE
(cfg.Configuration 444 ) Mapping resource: com/merlin/common/data/hibernate/xdoclet/EngineType.hbm.xml
(cfg.HbmBinder 260 ) Mapping class: com.merlin.common.data.hibernate.xdoclet.EngineType -> ENGINE_TYPE
(cfg.Configuration 1222) Configured SessionFactory: null
(cfg.Configuration 875 ) processing extends queue
(cfg.Configuration 879 ) processing collection mappings
(cfg.HbmBinder 2041) Mapping collection: com.merlin.common.data.hibernate.xdoclet.Customer.vehicles -> VEHICLE
(cfg.HbmBinder 2041) Mapping collection: com.merlin.common.data.hibernate.xdoclet.Garage.vehicles -> VEHICLE
(cfg.Configuration 888 ) processing association property references
(cfg.Configuration 917 ) processing foreign key constraints
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.merlin.server.test.DAOProxy.invoke(Unknown Source)
at com.merlin.server.test.DAOProxy.find(Unknown Source)
at com.merlin.server.test.BaseDAOTestCase.testFind(Unknown Source)
at com.merlin.server.test.dao.CustomerDAOTestCase.testFindAll(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at junit.textui.TestRunner.doRun(TestRunner.java:116)
at com.intellij.rt.execution.junit2.IdeaJUnitAgent.doRun(IdeaJUnitAgent.java:57)
at junit.textui.TestRunner.start(TestRunner.java:172)
at com.intellij.rt.execution.junit.TextTestRunner2.startRunnerWithArgs(TextTestRunner2.java:23)
at com.intellij.rt.execution.junit2.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:97)
at com.intellij.rt.execution.junit2.JUnitStarter.main(JUnitStarter.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)
Caused by: org.hibernate.MappingException: An association from the table CUSTOMER refers to an unmapped class: com.merlin.common.data.hibernate.usertypes.CustomerLevelUserType
at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:968)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:921)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:999)
at com.merlin.common.HibernateSessionFactory.getSessionFactory(Unknown Source)
at com.merlin.server.dao.BaseDAO.find(Unknown Source)
at com.merlin.server.dao.hibernate.CustomerDAO.find(Unknown Source)
... 31 more
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