Help with EJB plz

Question

Hi,
I'm new to EBJs and am playing with an entity bean pretty much identical to the one on the J2EE tutorial but the home interface does not compile and I've got no idea why. Would really appreciate your help.
COMPILER COMPLAINT*****
C:\j2sdkee1.3\nim\src\ejb\addresses>javac AddressesHome.java
AddressesHome.java:7: cannot resolve symbol
symbol : class Addresses
location: interface AddressesHome
public Addresses Create(String id, String firstname, String lastname, St
ring address, int contactno) throws RemoteException, CreateException;
^
AddressesHome.java:10: cannot resolve symbol
symbol : class Addresses
location: interface AddressesHome
public Addresses FindByPrimaryKey(String id) throws FinderException, Rem
oteException;
^
2 errors
HOME INTERFACE*****
import java.util.Collection;
import java.rmi.RemoteException;
import javax.ejb.*;
public interface AddressesHome extends EJBHome
     public Addresses Create(String id, String firstname, String lastname, String address, int contactno) throws RemoteException, CreateException;
     public Addresses FindByPrimaryKey(String id) throws FinderException, RemoteException;
     public Collection FindByLastName(String lastname) throws FinderException, RemoteException;
ADDRESSESSBEAN CLASS*****
import java.sql.*;
import javax.sql.*;
import java.util.*;
import javax.ejb.*;
import javax.naming.*;
public class AddressesBean implements EntityBean
     private String id;
     private String firstname;
     private String lastname;
     private String address;
     private int contactno;
     private Connection conn;
     private EntityContext context;
     private String dbName = "java:comp/env/jdbc/AddressesdB";
     public String ejbCreate(String id, String firstname, String lastname, String address, int contactno) throws CreateException
               if(address == null || address.length() == 0)
                    throw new CreateException("You must specify an address");
               try
                    insertRow(id, firstname, lastname, address, contactno);
               catch(Exception e)
                    throw new EJBException("ejbCreate: " + e.getMessage());
               this.id = id;
               this.firstname = firstname;
               this.lastname = lastname;
               this.address = address;
               this.contactno = contactno;
               return id;
     public void changeAddress(String address)
          this.address = address;
     public String getAddress()
          return address;
     public void changeContactno(int contactno)
          this.contactno = contactno;
     public int getContactno()
          return contactno;
     public String getFirstname()
          return firstname;
     public String getLastname()
          return lastname;
     public String ejbFindByPrimaryKey(String primaryKey) throws FinderException
          boolean result;
          try
               result = selectByPrimaryKey(primaryKey);
          catch(Exception e)
               throw new EJBException("ejbFindByPrimaryKey: " + e.getMessage());
          if(result)
               return primaryKey;
          else
               throw new ObjectNotFoundException("Row for id " + primaryKey + " not found");
     public Collection ejbFindByLastName(String lastname) throws FinderException
          Collection result;
          try
               result = selectByLastName(lastname);
          catch(Exception e)
               throw new FinderException("ejbFindByLastName :" + e.getMessage());
          return result;
     public void ejbRemove()
          try
               deleteRow(id);
          catch(Exception e)
               throw new EJBException("ejbRemove : " + e.getMessage());
     public void setEntityContext(EntityContext context)
          this.context = context;
          try
               makeConnection();
          catch(Exception e)
               throw new EJBException("Unable to connect to database: " + e.getMessage());
     public void unsetEntityContext()
          try
               conn.close();
          catch(Exception e)
               throw new EJBException("unsetEntityContext: " + e.getMessage());
     public void ejbActivate()
          id = (String)context.getPrimaryKey();
     public void ejbPassivate()
          id = null;
     public void ejbLoad()
          try
               loadRow();
          catch(Exception e)
               throw new EJBException("ejbLoad: " + e.getMessage());
     public void ejbStore()
          try
               storeRow();
          catch(Exception e)
               throw new EJBException("ejbStore: " + e.getMessage());
     public void ejbPostCreate(String id, String firstname, String lastname, String address, boolean contactno)
     /****************************** DataBase Routines ******************************/
     private void makeConnection() throws NamingException, SQLException
          InitialContext ic = new InitialContext();
          DataSource ds = (DataSource) ic.lookup(dbName);
          conn = ds.getConnection();
     private void insertRow(String id, String firstname, String lastname, String address, int contactno) throws SQLException
          String insertStatement = "inset into ADDRESSES values (?, ?, ?, ?, ?)";
          PreparedStatement prepStmt = conn.prepareStatement(insertStatement);
          prepStmt.setString(1, id);
          prepStmt.setString(2, firstname);
          prepStmt.setString(3, lastname);
          prepStmt.setString(4, address);
          prepStmt.setDouble(5, contactno);
          prepStmt.executeUpdate();
          prepStmt.close();
     private void deleteRow(String id) throws SQLException
          String deleteStatement = "delete from ADDRESSES where id = ?";
          PreparedStatement prepStmt = conn.prepareStatement(deleteStatement);
          prepStmt.setString(1, id);
          prepStmt.executeUpdate();
          prepStmt.close();
     private boolean selectByPrimaryKey(String primaryKey) throws SQLException
          String selectStatement = "select id from ADDRESSES where id = ? ";
          PreparedStatement prepStmt = conn.prepareStatement(selectStatement);
          prepStmt.setString(1, primaryKey);
          ResultSet rs = prepStmt.executeQuery();
          boolean result = rs.next();
          prepStmt.close();
          return result;
     private Collection selectByLastName(String lastname) throws SQLException
          String selectStatement = "select id from ADDRESSES where lastname = ? ";
          PreparedStatement prepStmt = conn.prepareStatement(selectStatement);
          prepStmt.setString(1, lastname);
          ResultSet rs = prepStmt.executeQuery();
          ArrayList a = new ArrayList();
          while(rs.next())
               String id = rs.getString(1);
               a.add(id);
          prepStmt.close();
          return a;
     private void loadRow() throws SQLException
          String selectStatement = "select firstname, lastname, address, contactno from ADDRESSES where id = ?";
          PreparedStatement prepStmt = conn.prepareStatement(selectStatement);
          prepStmt.setString(1, this.id);
          ResultSet rs = prepStmt.executeQuery();
          if(rs.next())
               this.firstname = rs.getString(1);
               this.lastname = rs.getString(2);
               this.address = rs.getString(3);
               this.contactno = rs.getInt(4);
               prepStmt.close();
          else
               prepStmt.close();
               throw new NoSuchEntityException("Row for id " + id + " not found in the dataBase");
     private void storeRow() throws SQLException
          String updateStatement = "update ADDRESSES set firstname = ?, lastname = ?, address = ? contactno = ? where id = ?";
          PreparedStatement prepStmt = conn.prepareStatement(updateStatement);
          prepStmt.setString(1, firstname);
          prepStmt.setString(2, lastname);
          prepStmt.setString(3, address);
          prepStmt.setInt(4, contactno);
          prepStmt.setString(5, id);
          int rowCount = prepStmt.executeUpdate();
          prepStmt.close();
          if(rowCount == 0)
               throw new EJBException("Storing row for id " + id + " failed.");
}

Answer 1

EJB questions should be posted in the EJB forum! :=)
I did find the compiler message a bit strange. Usually if I don't have a class defined it complains that it cannot find package_name.class_name (when I'm using packages for my own code).