Problem with Oracle Stored Procedure. Getting "no natural-id property defined; need to specify [key] in generator parameters" error from org.hibernate.id.IdentifierGenerationException Basically need to load table data into memory for future reference. Any help greatly appreciated

[b]Version: 3.2.3[/b]

[b]<hibernate-mapping>
<class name="Source" table="SOURCE">
<!--Properties Mapping-->
<id name="SourceId" type="int">
<column name="SOURCE_ID"/>
<generator class="select"/>
</id>
<property name="SourceName" insert="false" update="false" type="java.lang.String">
<column name="SOURCE_NAME"/>
</property>
<property name="SourceDesc" insert="false" update="false" type="java.lang.String">
<column name="SOURCE_DESC"/>
</property>
</class>
</hibernate-mapping>

<hibernate-mapping>
<sql-query name="selectAllSource_FNC">
<return alias="source" class="Source">
<return-property name="SourceId" column="SOURCE_ID"/>
<return-property name="SourceName" column="SOURCE_NAME"/>
<return-property name="SourceDesc" column="SOURCE_DESC"/>
</return>
{ ? = call DATA.FNC_GET_ALL_SOURCE() }
</sql-query>
</hibernate-mapping>
[/b]


[b]org.hibernate.id.IdentifierGenerationException: no natural-id property defined; need to specify [key] in generator parameters
at org.hibernate.id.SelectGenerator.determineNameOfPropertyToUse(SelectGenerator.java:50)
at org.hibernate.id.SelectGenerator.access$100(SelectGenerator.java:29)
at org.hibernate.id.SelectGenerator$SelectGeneratorDelegate.<init>(SelectGenerator.java:94)
at org.hibernate.id.SelectGenerator$SelectGeneratorDelegate.<init>(SelectGenerator.java:75)
at org.hibernate.id.SelectGenerator.getInsertGeneratedIdentifierDelegate(SelectGenerator.java:41)
at org.hibernate.persister.entity.AbstractEntityPersister.postConstruct(AbstractEntityPersister.java:2961)
at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:409)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:226)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)[/b]