HP Integrity NonStop J-Series - Manual (Page 132)

System.out.println("Employee found using HQL" + "\n"
+ "\to_id=" + emp.getId());
}
public void createEmp(TestManager manager) {
manager.createEmpl();
}
public static void main(String[] args) {
Test client = new Test();
Session session = client.openSession();
TestManager manager = new TestManager(session);
client.createEmp(manager);
client.testFindByHQL(manager);
session.close();
}
}
The Test.java main class file is created.
Implementing the Business Logic
The business logic for the EmpIoyeeInfo application is implemented in the TestManager.java
class file. To do this:
1.
Create the TestManager.java class file in the com.hp.imp package, as explained in
“Creating the Employee.java Class File” (page 129) .
2. Add the method to perform an insert operation on the database using Hibernate.
3. Add the method to perform a select operation on the database using the HQL.
The TestManager.java class must appear as:
package com.hp.imp;
import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.hp.domain.Employee;
public class TestManager {
private Session session = null;
private Transaction tx = null;
public TestManager(Session session) {
if (session == null)
throw new RuntimeException(
"Invalid session object. Cannot instantiate the EmpManager");
this.session = session;
}
public Employee getEmpl() {
System.out.println(System.currentTimeMillis());
List l = session.createQuery("from Employee").list();
java.util.Iterator emps = l.iterator();
Employee emp = null;
do {
132 Hibernate Framework