ex8_18.txt

来自「j2ee core design patterns」· 文本 代码 · 共 56 行

Example 8.18 	EmployeeApplicationService Code
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;

		// Create new id
		divisionId =
				getDivisionId(jobClassification, geography);

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

		PersistenceManagerFactory factory =
				PersistenceManagerFactory.getInstance();
		PersistenceManager manager =
				factory.getPersistenceManager();
		try {
			manager.begin();
			e = (Employee) manager.persistNew(e);
			manager.commit();
		} catch (SystemException e1) {
		} catch (NotSupportedException e1) {
		} catch (HeuristicRollbackException e1) {
		} catch (RollbackException e1) {
		} catch (HeuristicMixedException e1) {
		}
		return id;
	}

	public void setEmployeeSalary(String id, float salary) {
		PersistenceManagerFactory factory =
				PersistenceManagerFactory.getInstance();
		PersistenceManager manager =
				factory.getPersistenceManager();
		Employee e = manager.getEmployee(id);
		if (e != null) {
			e.setSalary(salary);
		}
		try {
			manager.begin();
			e = (Employee) manager.persist(e);
			manager.commit();
		} catch (SystemException e1) {
		} catch (NotSupportedException e1) {
		} catch (HeuristicRollbackException e1) {
		} catch (RollbackException e1) {
		} catch (HeuristicMixedException e1) {
		}
	}
}