public Query createNativeQuery(String sqlString, String resultSetMapping) {
try {
SQLQuery q = getSession().createSQLQuery(sqlString);
q.setResultSetMapping(resultSetMapping);
return new QueryImpl(q, this);
} catch (HibernateException he) {
throw convert(he);
}
}
public void testExplicitReturnAPI() {
Session s = openSession();
s.beginTransaction();
Organization jboss = new Organization("JBoss");
Person me = new Person("Steve");
Employment emp = new Employment(me, jboss, "US");
Serializable jbossId = s.save(jboss);
s.save(me);
s.save(emp);
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
String sql =
"SELECT org.ORGID as orgid,"
+ " org.NAME as name,"
+ " emp.EMPLOYER as employer,"
+ " emp.EMPID as empid,"
+ " emp.EMPLOYEE as employee,"
+ " emp.EMPLOYER as employer,"
+ " emp.STARTDATE as startDate,"
+ " emp.ENDDATE as endDate,"
+ " emp.REGIONCODE as regionCode,"
+ " emp.VALUE as VALUE,"
+ " emp.CURRENCY as CURRENCY"
+ " FROM ORGANIZATION org"
+ " LEFT OUTER JOIN EMPLOYMENT emp ON org.ORGID = emp.EMPLOYER";
// as a control, lets apply an existing rs mapping
SQLQuery sqlQuery = s.createSQLQuery(sql);
sqlQuery.setResultSetMapping("org-description");
sqlQuery.list();
// next try a partial mapping def
sqlQuery.addRoot("org", Organization.class);
sqlQuery.addFetch("emp", "org", "employments");
sqlQuery.list();
// now try full explicit mappings
sqlQuery
.addRoot("org", Organization.class)
.addProperty("id", "orgid")
.addProperty("name")
.addColumnAlias("name");
sqlQuery
.addFetch("emp", "org", "employments")
.addProperty("key", "employer")
.addProperty("element", "empid")
.addProperty("element.employee", "employee")
.addProperty("element.employer", "employer")
.addProperty("element.startDate", "startDate")
.addProperty("element.endDate", "endDate")
.addProperty("element.regionCode", "regionCode")
.addProperty("element.employmentId", "empId")
.addProperty("element.salary")
.addColumnAlias("VALUE")
.addColumnAlias("CURRENCY");
sqlQuery.list();
// lets try a totally different approach now and pull back scalars, first with explicit types
sqlQuery
.addScalar("orgid", LongType.INSTANCE)
.addScalar("name", StringType.INSTANCE)
.addScalar("empid", LongType.INSTANCE)
.addScalar("employee", LongType.INSTANCE)
.addScalar("startDate", TimestampType.INSTANCE)
.addScalar("endDate", TimestampType.INSTANCE)
.addScalar("regionCode", StringType.INSTANCE)
.addScalar("empId", LongType.INSTANCE)
.addScalar("VALUE", FloatType.INSTANCE)
.addScalar("CURRENCY", StringType.INSTANCE);
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
s.delete(emp);
s.delete(jboss);
s.delete(me);
s.getTransaction().commit();
s.close();
}