advertisebean.java

21天精通Java,这是一本英文书

package agency;

import java.rmi.*;
import java.sql.*;
import java.util.*;
import javax.ejb.*;
import javax.naming.* ;
import javax.sql.*;

import data.*;

public class AdvertiseBean implements SessionBean
{
	private JobLocalHome jobHome;
	private JobSkillLocalHome jobSkillHome;
	private CustomerLocalHome customerHome;
	private CustomerLocal customer;

	public void updateDetails (AdvertiseValueObject details) {
		customer.setName(details.getName());
		customer.setEmail(details.getEmail());
		customer.setAddress(details.getAddress());
	}
	
	public AdvertiseValueObject getDetails() {
	  AdvertiseValueObject details = new AdvertiseValueObject();
	  details.setLogin(customer.getLogin());
	  details.setName(customer.getName());
	  details.setEmail(customer.getEmail());
	  details.setAddress(customer.getAddress());
	  return details;
	}

	public String[] getJobs() {
		try {
			Collection col = jobHome.findByCustomer(customer.getLogin());
			String[] res = new String[col.size()];
			Iterator it = col.iterator();
			int i = 0;
			while (it.hasNext()) {
				JobLocal job = (JobLocal)it.next();
				res[i++] = job.getRef();
			}
			return (res);
		}
		catch (FinderException ex) {
			error("Cannot find jobs for customer: "+customer.getLogin(),ex);
		}
		return null;
	}

	public void createJob (String ref) throws DuplicateException, CreateException {
		try {
			jobHome.create(ref,customer.getLogin());
		}
		catch (CreateException ex) {
			error("Cannot find job: "+ref,ex);
		}
	}

	public void deleteJob (String ref) throws NotFoundException {
		try {
			jobSkillHome.deleteByJob(ref,customer.getLogin());
			jobHome.remove(new JobPK(ref,customer.getLogin()));
		}
		catch (RemoveException ex) {
			error("Cannot remove job: "+ref,ex);
		}
	}

	private void error (String msg, Exception ex) {
		String s = "AdvertiseBean: "+msg + "\n" + ex;
		System.out.println(s);
		throw new EJBException(s, ex);
	}

	// EJB methods start here

	public void ejbCreate (String login) throws CreateException {
		try {
			if (ctx.isCallerInRole("admin") ||
				ctx.getCallerPrincipal().getName().equals(login)) {
				customer = customerHome.findByPrimaryKey(login);
			}
			else
				throw new CreateException ("Customer name does not match principal name");
		}
		catch (FinderException ex) {
			error("Cannot find customer: "+login,ex);
		}
	}

	public void ejbActivate(){
	}

	public void ejbPassivate(){
	}

	public void ejbRemove(){
	}

	private SessionContext ctx;
	
	public void setSessionContext(SessionContext ctx) {
		this.ctx = ctx;
		InitialContext ic=null;
		try {
			ic = new InitialContext();
			customerHome = (CustomerLocalHome)ic.lookup("java:comp/env/ejb/CustomerLocal");
		}
		catch (NamingException ex) {
			error("Error connecting to java:comp/env/ejb/CustomerLocal:",ex);
		}
		try {
			jobHome = (JobLocalHome)ic.lookup("java:comp/env/ejb/JobLocal");
		}
		catch (NamingException ex) {
			error("Error connecting to java:comp/env/ejb/JobLocal:",ex);
		}
		try {
			jobSkillHome = (JobSkillLocalHome)ic.lookup("java:comp/env/ejb/JobSkillLocal");
		}
		catch (NamingException ex) {
			error("Error connecting to java:comp/env/ejb/JobSkillLocal:",ex);
		}
	}
}