/* * Preferences.java * * Created on 13 ??????? 2546, 16:38 ?. */
      
        import javax.microedition.rms.*;
      /**
        * An example MIDlet with simple "Hello" text and an Exit command.
        * Refer to the startApp, pauseApp, and destroyApp
        * methods so see how each handles the requested transition.
        *
        * @author sup98
        * @version
        */
        public class Preferences{   
	    private static Preferences sInstance;
	    private String mUser, mPassword;
        
        public static Preferences getInstance(){
	    if(sInstance == null)
		sInstance = new Preferences("","");
		
		RecordStore rs = null;
		try{
		  rs = RecordStore.openRecordStore("Preferences", true);
		}
                catch(RecordStoreException rse){
		  return null;
		}
	    String user, password;
	    user = password = "";
	    try{
		byte[] userBytes = rs.getRecord(1);
		byte[] passwordBytes = rs.getRecord(2);
		user = new String(userBytes);
		password = new String(passwordBytes);
	    }
	    catch(RecordStoreException rse){}		
	    catch(NullPointerException npe){}

	    try{ rs.closeRecordStore();}
	    catch(RecordStoreException rse){}

	    sInstance.setUser(user);
	    sInstance.setPassword(password);
	    
	    return sInstance;
	    
        }
	  

        private Preferences(String user, String password){
 	    setUser(user);
	    setPassword(password);
        }
        
        public String getUser(){ return mUser;}
        public String getPassword(){ return mPassword;}

        public void setUser(String user){ mUser = user;}
        public void setPassword(String password){ mPassword = password;}
        

        public void store(){
	    RecordStore rs = null;
	    try{
		rs = RecordStore.openRecordStore("Preferences", false);
	    }catch(RecordStoreException rse){ return;}

	    try{
		byte[] userBytes = mUser.getBytes();
		byte[] passwordBytes = mPassword.getBytes();
		int n = rs.getNumRecords();
		if(n == 0){
		  rs.addRecord(userBytes, 0, userBytes.length);
		  rs.addRecord(passwordBytes , 0, passwordBytes .length); 
		}
		else{
		  rs.setRecord(1, userBytes, 0, userBytes.length);			
		  rs.setRecord(2, passwordBytes, 0, passwordBytes.length);			
		}
	    }						
	    catch(RecordStoreException rse){}

	    try{rs.closeRecordStore();}
	    catch(RecordStoreException rse){};

        }        
        
        
        }