Calling stored function in hibernate - spring

Question

I have tried multiple ways to call stored function in hibernate---
1) Via Session.doWork callback method
session.doWork(new Work() {
#Override
public void execute(Connection conn)
throws SQLException {
CallableStatement stmt = conn.prepareCall("{? = call test(?)}");
stmt.registerOutParameter(1, Types.INTEGER);
stmt.setString(2, "callIndex");
stmt.execute();
eventVal = stmt.getInt(1);
}
});
This works fine but cannot return any thing from here, so doesn't solve my purpose.
2) Via Native query
StringBuilder query = new StringBuilder();
query.append("Select test() from dual");
SQLQuery sqlQuery = session.createSQLQuery(query.toString());
List resultList = sqlQuery.list();
events = new ArrayList<Events>();
Object result = null;
if (events != null && !events.isEmpty()) {
for (int i = 0; i < events.size(); i++) {
result = resultList.get(i);
}
}
This doesn't work and gives me some No Dialect mapping for JDBC type -10, not sure of the reason.
3) Via named query
My entity class is ---
#NamedNativeQueries({
#NamedNativeQuery(name = "testCall",
query = "? = call test()",
hints = {#QueryHint(name = "org.hibernate.callable", value = "true" )},
resultClass = Events.class
)
})
#Entity
#Table(name = "EVENTS")
public class Events implements Serializable {
private static final long serialVersionUID = -24850323296832289L;
/** The id. */
#Id
#Column(name = "EVENT_SID")
private Integer eventId;
/** The processed status. */
#Column(name = "EVENT_STATUS")
private String eventStatus;
/** The event type. */
#Column(name = "EVENT_TYPE_NAME")
private String eventType;
/** The live event. */
#Column(name = "IS_LIVE_EVENT")
private Integer liveEvent;
/** The event message. */
#Lob
#Column(name = "EVENT_MESSAGE")
private String eventMessage;
public Integer getEventId() {
return eventId;
}
public void setEventId(Integer eventId) {
this.eventId = eventId;
}
public String getEventStatus() {
return eventStatus;
}
public void setEventStatus(String eventStatus) {
this.eventStatus = eventStatus;
}
/**
* Gets the event type.
*
* #return the event type
*/
public String getEventType() {
return eventType;
}
/**
* Sets the event type.
*
* #param eventType
* the new event type
*/
public void setEventType(String eventType) {
this.eventType = eventType;
}
/**
* Gets the live event.
*
* #return the live event
*/
public Integer getLiveEvent() {
return liveEvent;
}
/**
* Sets the live event.
*
* #param liveEvent
* the new live event
*/
public void setLiveEvent(Integer liveEvent) {
this.liveEvent = liveEvent;
}
/**
* Gets the event message.
*
* #return the event message
*/
public String getEventMessage() {
return eventMessage;
}
/**
* Sets the event message.
*
* #param eventMessage
* the new event message
*/
public void setEventMessage(String eventMessage) {
this.eventMessage = eventMessage;
}
}
The DAO through which I am making call have method ---
public Integer callSqlBlock(){
int event = 0;
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
List<Events> events = null;
events = session.getNamedQuery("testCall").list();
return events.get(0).getEventId();
}
stored function on the DB end ---
create or replace
function test return SYS_REFCURSOR
as
p_order_recordset SYS_REFCURSOR;
begin
open p_order_recordset FOR SELECT EVENT_SID,EVENT_STATUS,EVENT_TYPE_NAME,IS_LIVE_EVENT FROM events;
return p_order_recordset;
end ;
execution of stored function via named query is giving me invalid column index
Please let me know where I am going wrong on this, and if possible please provide some example also