hibernate validator question

[jim li]

<hibernate-configuration>
...
<event type="pre-update">
<listener
class="org.hibernate.validator.event.ValidateEventListener"/>
</event>
<event type="pre-insert">
<listener
class="org.hibernate.validator.event.ValidateEventListener"/>
</event>
</hibernate-configuration>

@entity
public class ta{
@Column( unique=true )
private String code;

}

i want hibernate validator to show me the errors when i try to insert a duplicated value. but there is only one exception which is not what i wanted

can anyone tell me what is wrong with the configuration file?

[jim li]

fixed the problem