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Code between sessionFactory.openSession() and session.close():

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[quote="jitendra_agrawal"]Need help with Hibernate? Read this first:
http://www.hibernate.org/ForumMailingli ... AskForHelp

public class GeneratedIdentifierGenerator implements IdentifierGenerator, Configurable
{

public GeneratedIdentifierGenerator()
{
super();
}

/**
* The delegate parameter specifies the underlying ID generator to use.
*/
public static final String DELEGATE = "delegate";

private IdentifierGenerator assignedGenerator;
private IdentifierGenerator delegateGenerator;

public Serializable generate(SessionImplementor session, Object object) throws HibernateException, SQLException {
AbstractDomainObject abstractDomainObject = (AbstractDomainObject) object;
if (abstractDomainObject.getId() != null) {
return assignedGenerator.generate(session, object);
} else {
return delegateGenerator.generate(session, object);
}
}

public void configure(Type type, Properties params, Dialect d) throws MappingException {
String generatorName = params.getProperty(DELEGATE);
if (generatorName == null) throw new MappingException("param named "delegate" is required for object generation strategy");

// Create the delegate and assigned ID generators
delegateGenerator = IdentifierGeneratorFactory.create(generatorName, type, params, d);
assignedGenerator = IdentifierGeneratorFactory.create("assigned", type, params, d);
}
}

I am using mysql 4.0. If I set the identifier to the object, then it is working fine. In this case, it is creating an instance of AssignedGenerator and returns proper identifier which was set earlier. But when I do not set any identifier, then in this case it is creating an instance of IdentityGenerator, but return null or empty string instead of proper identifier.

Following is mapping in hbm.

<id name="id"
column="IDENTIFIER"
type="long"
length="30"
unsaved-value="null"
>
<generator class="edu.wustl.catissuecore.test.GeneratedIdentifierGenerator">
<param name="delegate">native</param>
<param name="sequence">CATISSUE_DEPARTMENT_SEQ</param>
</generator>
</id>


Can somebody help me out?