ex8_19.txt

j2ee core design patterns

Example 8.19 import javax.transaction.*;

public class EmployeeApplicationService {
    public String createEmployee(String lastName,
                                 String firstName,
                                 String ss,
                                 float salary,
                                 String jobClassification,
                                 String geography) {
        String id = null;
        String divisionId = null;

        // Biz Logic

        // Create new id
        // id = getNewId();

        // divisionId = getDivisionId( jobClassification );

        // Create Employe
        Employee e = new Employee(id, lastName, firstName, ss, salary, divisionId);

        PersistenceManagerFactory factory = PersistenceManagerFactory.getInstance();
        PersistenceManager manager = factory.lookupPersistenceManager();
        try {
            manager.begin();
            manager.persist(e);
            manager.commit();
        } catch (SystemException e1) {
        } catch (NotSupportedException e1) {
        } catch (HeuristicRollbackException e1) {
        } catch (RollbackException e1) {
        } catch (HeuristicMixedException e1) {
        }
        return id;
    }
} 
	Persistable Interface and Employee Class
public interface Persistable {
}

public class Employee implements Persistable {
	protected String id;
	protected String firstName;
	protected String lastName;
	protected String ss;
	protected float salary;
	protected String divisionId;

	public Employee(String id) {
		this.id = id;
	}

	public Employee(String id, String lastName,
			String firstName, String ss, float salary,
			String divisionId) {
		this.firstName = firstName;
		this.lastName = lastName;
		this.firstName = firstName;
		this.ss = ss;
		this.salary = salary;
		this.divisionId = divisionId;
	}

	public void setId(String id) {
		this.id = id;
	}

	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}

	public void setLastName(String lastName) {
		this.lastName = lastName;
	}

	public void setSalary(float salary) {
		this.salary = salary;
	}

	public void setDivisionId(String divisionId) {
		this.divisionId = divisionId;
	}

	public void setSS(String ss) {
		this.ss = ss;
	}

	. . .
}