Store data is not retrieving

JavaJunkie · #1 (**permalink**) 05-05-2009, 08:41 AM

Hi,

I'm stuck in the problem of retrieving the stored data in midlet. Whenever I try to retrieve the data I'm getting the following exception:

Code:

java.lang.ArrayIndexOutOfBoundsException
	at javax.microedition.rms.RecordStore.getRecordIDs(+61)
	at javax.microedition.rms.RecordEnumerationImpl.rebuild(+21)
	at javax.microedition.rms.RecordEnumerationImpl.<init>(+41)
	at javax.microedition.rms.RecordStore.enumerateRecords(+15)
	at recordStore.dis1(+34)
	at Project.commandAction(+313)
	at javax.microedition.lcdui.List.callKeyPressed(+80)
	at javax.microedition.lcdui.Display$DisplayAccessor.keyEvent(+198)
	at javax.microedition.lcdui.Display$DisplayManagerImpl.keyEvent(+11)
	at com.sun.midp.lcdui.DefaultEventHandler.keyEvent(+127)
	at com.sun.midp.lcdui.AutomatedEventHandler.keyEvent(+210)
	at com.sun.midp.lcdui.DefaultEventHandler$QueuedEventHandler.handleVmEvent(+114)
	at com.sun.midp.lcdui.DefaultEventHandler$QueuedEventHandler.run(+57)

The code which I've used in storing the data is:

Code:

ByteArrayOutputStream stream=new ByteArrayOutputStream();
DataOutputStream writer=new DataOutputStream(stream);
  writer.writeUTF(t.getString());// t and t1 here is a reference of TextField type
  writer.writeUTF(t1.getString());
  

    byte[] b=stream.toByteArray();
                      
	byte[] b1=stream.toByteArray();
	  rs.addRecord(b,0,b.length);
	  rs.addRecord(b1,0,b1.length);

and the code which I've used for retrieving the stored data is:

ByteArrayInputStream stream;
DataInputStream reader;

Code:

RecordEnumeration en=rs.enumerateRecords(null,null,false);
 int id=en.nextRecordId();


 while(en.hasNextElement())
 {

byte[] rec=new byte[rs.getRecordSize(id)];
rec=rs.getRecord(id);
stream=new ByteArrayInputStream(rec);
reader=new DataInputStream(stream);
System.out.println(reader.readUTF());

Thanks in advance.

JavaJunkie · #2 (**permalink**) 05-05-2009, 10:26 PM

Please reply. I'm still having trouble in solving this problem.

gopicsq · #3 (**permalink**) 05-30-2009, 09:08 AM

table="login"

openRecStore();

if (ns == 0) {
writeRecord("dileepp");
writeRecord("1207sp");
writeRecord("000002");
writeRecord("True");
writeRecord("True");

}

public void openRecStore(){
try{ rs = RecordStore.openRecordStore(table,true );
}catch (Exception e){}
}

public void writeRecord(String str){
byte[] rec = str.getBytes();
try{rs.addRecord(rec, 0, rec.length);
}catch (Exception e){}
}

public void readRecords(){

int ln=0;
mdes = new String[ln];

String[] sArry;
try{
ln = rs.getNumRecords();
}catch (Exception e){}

mdes = new String[ln];

int x=0;
try{
byte[] recData = new byte[rs.getNumRecords()];
int len;
for(int i = 1; i <= rs.getNumRecords(); i++){
recData = new byte[rs.getRecordSize(i)];
len = rs.getRecord(i, recData, 0);
String des = new String(recData, 0, len);
mdes[i] = des ;

}

} // for loop

}catch (Exception e){}

if ( ln == 0) {
Alert error = new Alert ("Status","No Record found in "+table+ " Table",null, AlertType.INFO );
error.setTimeout(Alert.FOREVER);
}

}

Regards

Gopinath