ex8_46.txt

j2ee core design patterns

Example 8.46 						CompanyFacade, CompanyFacadeHome, 
  CompanyFacadeSession
//CompanyFacade
import java.rmi.RemoteException;

public interface CompanyFacade
		extends javax.ejb.EJBLocalObject {
	public void createCompany(
			String companyId, String companyName );
	public void addDivision(
		String divisionId, String divisionName );
	public void addEmployee(String employeeId,
			String lastName, String firstName );
}

// CompanyFacadeHome
import javax.ejb.CreateException;

public interface CompanyFacadeHome
		extends javax.ejb.EJBLocalHome {
	public CompanyFacade create( )
			throws CreateException;
	public CompanyFacade create( String companyId )
			throws CreateException;
}

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

public class CompanyFacadeSession
		implements javax.ejb.SessionBean {
	String companyId;

	public void createCompany( String id, String name ) {
		// Create and Persist Company
		// Keep companyId for stateful conversations
		this.companyId = id;
	}

	public void addDivision(
			String divisionId, String divisionName) {
		// Call to business object or DAO to add
		// Division to Company
	}

	public void addEmployee(String employeeId,
			String lastName, String firstName) {
		// Call to business object or DAO to assign
		// employee to Division
	}

	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 {    }
	public void ejbCreate( String companyId )
			throws CreateException {
		// Lookup Company business object
		this.companyId = companyId;
	}
}