hello Rudy I would rather noy use an adapter class for my
interface DataClient here is my code again
package suncertify.db;
import java.io.*;
import java.util.*;
import java.rmi.*;
public interface DataClient extends Remote
{
public FieldInfo [] getFieldInfo()throws RemoteException;
public DataInfo getRecord(int recNum)throws DatabaseException, RemoteException;
public DataInfo find(String toMatch)throws DatabaseException, RemoteException;
public void add(String [] newData)throws DatabaseException, RemoteException;
public void modify(DataInfo newData)throws DatabaseException, RemoteException;
public void delete(DataInfo toDelete)throws DatabaseException, RemoteException;
public void close() throws RemoteException;
public void lock(int record)throws IOException, RemoteException;
public void unlock(int record)throws RemoteException;
public DataInfo[] criteriaFind(String criteria) throws DatabaseException, RemoteException;
public String[] getComboValues(int fieldNum) throws DatabaseException, RemoteException;
public int getMatchCount(String matchCount) throws DatabaseException,RemoteException;
}
then I have this code:::I would rather not extend Data I could I get around this???
package suncertify.db;
import java.io.*;
import java.util.*;
public class DataClientLocal implements DataClient
{
public DataClientLocal(String dbname){
try
{
Data dbInstance = new Data(dbname);
}
catch(Exception ex)
{
System.out.println("Database connection failed");
}
}
}
//next code:::::
ataClientRMI
package suncertify.db;
import java.io.*;
import java.util.*;
import java.rmi.*;
public class DataClientRMI implements DataClient
{
public DataClientRMI(){
try
{
////////
}
catch(Exception ex)
{
System.out.println("Database connection failed");
}
}
}
then on the client:::::
public switchMode
{
DataClient data =null;
if(localmode)
{
data = new DataClientLocal(arg1,...)
}
else
{
data = new DataClientRMI(arg1,...)
}
}
Problem is when I try to compile this above classes::
DataClientRMI
DataClientLocal
//I get the errors these two classes must be declared abstract but if I do this I cant create an instance of these 2 classes.
Have you a solution Perhaps I am missing something here???
Thanks Lisa
