I am working on a TreeTable component of a Swing application. I followed the tutorial given at TreeTables2
I am passing a Message object to the PropertiesTableModel which I used to create the JTreeTable and suppose to view them as shown in the bellow image.
following is the source code of my table model.
import javax.swing.*;
import java.util.List;
public class PropertiesTableModel extends AbstractTreeTableModel implements TreeTableModel{
private List<Field> fieldList;
private static int fiedlCount=0;
// Names of the columns.
static protected String[] columnNames=
new String[]{"Field","Data Type","Value"};
// Types of the columns.
static protected Class[] columnTypes = { TreeTableModel.class,
ImageIcon.class, Object.class};
public PropertiesTableModel(Message msg){
super(msg);
this.fieldList=msg.getListFields();
}
// The TreeTableNode interface.
@Override
public int getColumnCount() {
return columnNames.length;
}
@Override
public String getColumnName(int columnIndex){
return columnNames[columnIndex];
}
@Override
public Class<?> getColumnClass(int columnIndex){
return columnTypes[columnIndex];
}
public Object getValueAt(Object node,int column) {
Message msg=(Message)node;
if (fiedlCount < fieldList.size()){
Field field = msg.getListFields().get(fiedlCount);
fiedlCount++;
if(column==0){
return field.getFieldDef().getfName();
}
if(column==1){
String dataType=field.getFieldDef().getDataType();
return PropertiesPanel.getPpIns().getDataTypeIcon(dataType);
}
else if (column==2){
if(field.getFieldDef().getListValue().size()>0){
return field.getFieldDef().getListValue();
}
else{
return field.getDefaultValue();
}
}
}
return null;
}
// The TreeModel interface
public int getChildCount(Object node) {
Object[] children = getChildren(node);
return (children == null) ? 0 : children.length;
}
public Object getChild(Object node, int i) {
return getChildren(node)[i];
}
public boolean isLeaf(Object node) {
return true;
}
protected Object[] getChildren(Object node) {
return null;
}
}
When I run the app, only the root node (Message) gets appear in the Table.
This is the first time I am trying out a customized Tree table component in swing and I feel it bit complex. Can someone please help me to view the data accordingly in the Tree table. Or if someone has a better workaround than doing this approach in order to build a Tree Table easier than this, please help me out.
