Implementing the business logic – HP Integrity NonStop H-Series User Manual
Page 340
+ "\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 so, complete the following steps:
1.
Create the
TestManager.java
class file in the
com.hp.imp
package, as explained in
section.
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 Hibernate Query
Language (HQL).
The
TestManager.java
class must appear as follows:
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();
340
Getting Started with Hibernate