Data from a model class won't show up in the table

[ayampanggang]

I have a simple model class that's derived from AbstractTableModel, which looks like this:

public class AddTrackModel extends AbstractTableModel {
	public AddTrackModel() {
		super();
		content = new Object[10][9]; //10 rows, 9 columns
		for (int i = 0; i < 10; ++i) {
			content[i] = new Object[] { new Boolean(true), "","","","","","" }; // i'm adding data to the content array to be displayed on the table
		}
		this.fireTableDataChanged(); // fire a notification
	}
	public int getRowCount() {
		return 0;
	}
	public int getColumnCount() {
		return columns.length;
	}
	public Object getValueAt(int row, int col) {
		return content[row][col];
	}
	public String getColumnName(int col) {
		return columns[col];
	}
	private String[] columns = { "Check",
			"Artist",
			"Title", 
			"CD No.", 
			"Track No.", 
			//"Album", 
			//"Genre", 
			//"BPM",
			//"Description" 
		};
	private static final int CHECKBOX = 0, ARTIST = 1, TITLE = 2, CDNUM = 3, TRACKNUM = 4, ALBUM = 5, GENRE = 6, BPM = 7, DESC = 8;
	private Object[][] content;
}

the problem:
data that i entered into the content[][] array does not show up in the table.

is there additional step i should do? all i know in order for the data to get displayed correctly is to implement the getValueAt which i did, in above code. And i even fired the fireTableDataChanged in the constructor right after i update the content[][] array, but the data still don't shows up in my table and i'm wondering why?

do i need to implement an additional listener in my table that handles the drawing? i'm still using the original JTable.

thank you very much! :)

[hardwired]

public int getRowCount() {
    return content.length;
}

[ayampanggang]

that solved the problem. thank you!

[leniouf]

Hi,

I'm having a very similar problem but can't seem to figure out what exactly it is. I've got an Abstract Model Table that isn't showing anything in my JTable when I know that there is in fact a vector that is filled up with data. How do I make the JTable refresh so it displays the data. Did I also forget to add a certain function? Do I need a listener or a renderer? Here is my Abstract Model Table Class.

import java.util.Vector;
import javax.swing.table.AbstractTableModel;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;

public class QueryTableModel extends AbstractTableModel{
/**
*
*/

public static final int BOTH = 0;
public static final int NONRECONCILED = 1;
public static final int RECONCILED =2;

Vector<String[]> cache;
String[] headers;
int colCount;


public QueryTableModel(){
super();
cache = new Vector<String[]>();
}
public String getColumnName(int i){
return headers[i];
}
public String[] getHeaders(){
return headers;
}
public int getColumnCount(){
return colCount;
}
public int getRowCount(){
return cache.size();
}
public Object getValueAt (int row, int col){
if(row < cache.size() && row >= 0 && col >= 0 && col < colCount){
return ((String[]) cache.elementAt(row))[col];
}
return null;
}

public Object getRow(int row){
return cache.elementAt(row);
}

public void setVector(ResultSet rs){
if(cache.isEmpty() == false){
cache.clear();
}
try{
ResultSetMetaData meta = rs.getMetaData();
colCount = meta.getColumnCount();

headers = new String[colCount];
for(int i=1; i<= colCount; i++){
headers[i-1] = meta.getColumnName(i);
}
while(rs.next()){
String[] record = new String[colCount];
for(int j=0; j<colCount; j++){
record[j] = rs.getString(j+1);
}

cache.addElement(record);
}
fireTableChanged(null);
//fireTableStructureChanged();

}catch (Exception e){
e.printStackTrace();
}

}
public void setVector(Vector<String[]> vect){
if(cache.isEmpty() == false){
cache.clear();
}
cache = (Vector<String[]>) vect.clone();
this.fireTableChanged(null);
//fireTableStructureChanged();
}
public void setHeaders(String[] head){
headers = head;
}
public void setColumn(int col){
colCount = col;
}
public Vector<String[]> getData(){
return (Vector<String[]>) cache.clone();
}
public void clear(){
cache.clear();
}
}

Any ideas would be greatly appreciated.