ex8_47.txt

j2ee core design patterns

Example 8.47 	CompanyWebService and CompanyWebServiceBroker
import java.rmi.RemoteException;

public interface CompanyWebService extends javax.ejb.EJBObject {
	public void createCompany(
			String companyId, String companyName )
			throws RemoteException;

	public void addCompanyDivision(String companyId,
			String divisionId, String divisionName )
			throws RemoteException;

	public void addEmployee(String companyId, String employeeId,
			String lastName, String firstName )
			throws RemoteException;

	public void assignEmployeeToDivision(String companyId,
			String divisionId, String employeeId )
            throws RemoteException;
}

// CompanyWebServiceBroker
import javax.ejb.SessionContext;
import javax.ejb.EJBException;
import javax.ejb.CreateException;

public class CompanyWebServiceBroker
		implements javax.ejb.SessionBean {
	public void setSessionContext(SessionContext sessionContext)
			throws EJBException {    }

	public void ejbRemove() throws EJBException {    }
	public void ejbActivate() throws EJBException {    }
	public void ejbPassivate() throws EJBException {    }
	public void ejbCreate() throws CreateException {    }

	private CompanyFacadeHome getCompanyHome()
			throws ServiceLocatorException {
		CompanyFacadeHome home = (CompanyFacadeHome)
				ServiceLocator.getInstance().getLocalHome(
						"CompanyFacade");
		return home;
	}

	public void createCompany(
			String companyId, String companyName ) {
		try {
			CompanyFacadeHome home = getCompanyHome();
			CompanyFacade cf = home.create();
			cf.createCompany( companyId, companyName );
		} catch (CreateException e) {
		} catch (ServiceLocatorException e) {
		}
	}

	public void addCompanyDivision(String companyId,
			String divisionId, String divisionName ) {
		try {
			CompanyFacadeHome home = getCompanyHome();
			CompanyFacade cf = home.create( companyId );
			cf.addDivision( divisionId, divisionName );
		} catch (ServiceLocatorException e) {
		} catch (CreateException e) {
		}
	}

	public void addEmployee(String companyId, String employeeId,
			String lastName, String firstName ) {
		try {
			CompanyFacadeHome home = getCompanyHome();
			CompanyFacade cf = home.create( companyId );
			cf.addEmployee(employeeId, lastName, firstName);
		} catch (ServiceLocatorException e) {
		} catch (CreateException e) {
		}
	}

	private EmployeeFacadeHome getEmployeeHome() 
			throws ServiceLocatorException {
		EmployeeFacadeHome home = (EmployeeFacadeHome)
				ServiceLocator.getInstance().getLocalHome(
						"EmployeeFacade");
		return home;
	}

	public void assignEmployeeToDivision(String companyId,
			String divisionId, String employeeId ) {
		try {
			EmployeeFacadeHome home = getEmployeeHome();
			EmployeeFacade ef =
					home.create( companyId, employeeId );
			ef.assignToDivision( divisionId );
		} catch (ServiceLocatorException e) {
		} catch (CreateException e) {
		}
	}
}