ex8_27.txt

j2ee core design patterns

Example 8.27 	HRApplicationService Class
// HRApplicationService.java

package com.corej2eepatterns.service;

import com.corej2eepatterns.business.hr.*;
import java.math.BigDecimal;

/**
 * @author  Craig Russell
 */
public class HRApplicationService {
	private Factory factory;
	private Queries queries;

	/** Creates a new instance of HRApplicationService */
	public HRApplicationService(Factory factory) {
		this.factory = factory;
		this.queries = factory.getQueries();
	}

	public Employee getEmployee(long id) {
		return queries.getEmployee(id);
	}

	public Department getDepartment(String name) {
		return queries.getDepartment(name);
	}

	public Project getProject(String name) {
		return queries.getProject(name);
	}

	public PartTimeEmployee createPartTimeEmployee(
			long id, String firstName, String lastName,
			BigDecimal wage, String departmentName) {
		PartTimeEmployee employee =
				factory.createPartTimeEmployee(
				id, firstName, lastName);
		employee.setWage(wage);
		Department department =
			queries.getDepartment(departmentName);
		employee.setDepartment(department);
		factory.persistObject(employee);
		return employee;
	}

	public FullTimeEmployee createFullTimeEmployee( 
			long id, String firstName,String lastName,
			BigDecimal salary,vString departmentName) {
		FullTimeEmployee employee =
				factory.createFullTimeEmployee(
				id, firstName, lastName);
		employee.setSalary(salary);
		Department department =
				queries.getDepartment(departmentName);
		employee.setDepartment(department);
		factory.persistObject(employee);
		return employee;
	}
}