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package examples.entity.uni.one_to_many;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import examples.entity.uni.one_to_many.interfaces.CompanyEmployeeOM;
@Stateless
public class CompanyEmployeeOMUniBean implements CompanyEmployeeOM {
@PersistenceContext
EntityManager em;
public void doSomeStuff() {
Company c = new Company();
c.setName("M*Power Internet Services, Inc.");
Collection<Employee> employees = new ArrayList<Employee>();
Employee e = new Employee();
e.setName("Micah Silverman");
e.setSex('M');
employees.add(e);
e = new Employee();
e.setName("Tes Silverman");
e.setSex('F');
employees.add(e);
c.setEmployees(employees);
em.persist(c);
c = new Company();
c.setName("Sun Microsystems");
employees = new ArrayList<Employee>();
e = new Employee();
e.setName("Rima Patel");
e.setSex('F');
employees.add(e);
e = new Employee();
e.setName("James Gosling");
e.setSex('M');
employees.add(e);
c.setEmployees(employees);
em.persist(c);
c = new Company();
c.setName("Bob's Bait & Tackle");
em.persist(c);
}
public List getCompanies() {
Query q = em.createQuery("SELECT c FROM CompanyOMUni c");
return q.getResultList();
}
public List getCompanies2(String query) {
Query q = em.createQuery(query);
return q.getResultList();
}
public void deleteCompanies() {
Query q = em.createQuery("DELETE FROM CompanyOMUni");
q.executeUpdate();
}
}
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