code: protected boolean _load ()
      {
          java.sql.ResultSet rs = null;
          try
          {
              // This synchronization is necessary for Oracle JDBC drivers 8.1.7, 9.0.1, 9.2.0.1
              // The documentation says synchronization is done within the driver, but they
              // must have overlooked something. Without the lock we'd get mysterious error
              // messages.            
              synchronized(getDbMeta())
              {
                  getDbMetaTreeModel().setStatusBarMessage("Reading columns for table " + getSchema().getCatalog().getCatalogName() + "." + getSchema().getSchemaName() + "." + getTableName());
                  rs = getDbMeta().getColumns(getSchema().getCatalog().getCatalogName(), 
                                                            getSchema().getSchemaName(),
                                                            getTableName(), "%");
                  final java.util.ArrayList alNew = new java.util.ArrayList();
                  while (rs.next())
                  {
                      alNew.add(new DBMetaColumnNode(getDbMeta(), getDbMetaTreeModel(), DBMetaTableNode.this, rs.getString("COLUMN_NAME")));
                  }
                  alChildren = alNew;            
                  javax.swing.SwingUtilities.invokeLater(new Runnable()
                  {
                      public void run()
                      {
                          getDbMetaTreeModel().nodeStructureChanged(DBMetaTableNode.this);
                      }
                  });
                  rs.close();
              }
          }
          catch (java.sql.SQLException sqlEx)
          {
              this.getDbMetaTreeModel().reportSqlError("Error retrieving columns", sqlEx);
              try
              {
                  if (rs != null) rs.close ();
              }
              catch (java.sql.SQLException sqlEx2)
              {
                  this.getDbMetaTreeModel().reportSqlError("Error retrieving columns", sqlEx2);
              }
              return false;
          }
          return true;
      }
docs: Loads the columns for this table into the alChildren list.