?? dataaccessbean.java
字號:
package com.titan.access;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;
import com.titan.domain.*;
@Stateless
public class DataAccessBean implements DataAccessRemote
{
@PersistenceContext private EntityManager manager;
public void initializeDatabase()
{
Person p = new Person();
p.setFirstName("Bill");
p.setLastName("Burke");
manager.persist(p);
Customer cust = new Customer();
cust.setFirstName("Sacha");
cust.setLastName("Labourey");
cust.setStreet("Se La Vie");
cust.setCity("Neuchatel");
cust.setState("Switzerland");
cust.setZip("3332002-111");
manager.persist(cust);
Employee employee = new Employee();
employee.setFirstName("Gavin");
employee.setLastName("King");
employee.setStreet("1st Street");
employee.setCity("Atlanta");
employee.setState("GA");
employee.setZip("33320");
employee.setEmployeeId(15);
manager.persist(employee);
}
public List findAllPersons()
{
return manager.createQuery("FROM Person p").getResultList();
}
}
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