Sorter从原始序列中获取值

Question

我在排序JTable后改变当前行中表的值时遇到困难...我使用TableCellListener类来侦听表中某个特定值列并更改值并上传到具有新值的MySQL中。问题是，在我分类之后，例如，当我改变状态的值时，我按照客户ID排序，当它改变状态的值时，它就会从“used”那一行开始改变。

TableCellListener.java --->这个类是用来听的新值输入

public class TableCellListener implements PropertyChangeListener, Runnable 
{ 
private JTable table; 
private Action action; 

private int row; 
private int column; 
private Object oldValue; 
private Object newValue; 

/** 
* Create a TableCellListener. 
* 
* @param table the table to be monitored for data changes 
* @param action the Action to invoke when cell data is changed 
*/ 
public TableCellListener(JTable table, Action action) 
{ 
    this.table = table; 
    this.action = action; 
    this.table.addPropertyChangeListener(this); 
} 

/** 
* Create a TableCellListener with a copy of all the data relevant to 
* the change of data for a given cell. 
* 
* @param row the row of the changed cell 
* @param column the column of the changed cell 
* @param oldValue the old data of the changed cell 
* @param newValue the new data of the changed cell 
*/ 
private TableCellListener(JTable table, int row, int column, Object oldValue, Object newValue) 
{ 
    this.table = table; 
    this.row = row; 
    this.column = column; 
    this.oldValue = oldValue; 
    this.newValue = newValue; 
} 

/** 
* Get the column that was last edited 
* 
* @return the column that was edited 
*/ 
public int getColumn() 
{ 
    return column; 
} 

/** 
* Get the new value in the cell 
* 
* @return the new value in the cell 
*/ 
public Object getNewValue() 
{ 
    return newValue; 
} 

/** 
* Get the old value of the cell 
* 
* @return the old value of the cell 
*/ 
public Object getOldValue() 
{ 
    return oldValue; 
} 

/** 
* Get the row that was last edited 
* 
* @return the row that was edited 
*/ 
public int getRow() 
{ 
    return row; 
} 

/** 
* Get the table of the cell that was changed 
* 
* @return the table of the cell that was changed 
*/ 
public JTable getTable() 
{ 
    return table; 
} 

@Override 
public void propertyChange(PropertyChangeEvent e) 
{ 
    // A cell has started/stopped editing 

    if ("tableCellEditor".equals(e.getPropertyName())) 
    { 
     if (table.isEditing()) 
      processEditingStarted(); 
     else 
      processEditingStopped(); 
    } 
} 

/* 
* Save information of the cell about to be edited 
*/ 
private void processEditingStarted() 
{ 
    // The invokeLater is necessary because the editing row and editing 
    // column of the table have not been set when the "tableCellEditor" 
    // PropertyChangeEvent is fired. 
    // This results in the "run" method being invoked 

    SwingUtilities.invokeLater(this); 
} 
/* 
* See above. 
*/ 
@Override 
public void run() 
{ 
    row = table.convertRowIndexToModel(table.getEditingRow()); 
    column = table.convertColumnIndexToModel(table.getEditingColumn()); 
    oldValue = table.getModel().getValueAt(row, column); 
    newValue = null; 
} 

/* 
* Update the Cell history when necessary 
*/ 
private void processEditingStopped() 
{ 
    newValue = table.getModel().getValueAt(row, column); 

    // The data has changed, invoke the supplied Action 

    if (! newValue.equals(oldValue)) 
    { 
     // Make a copy of the data in case another cell starts editing 
     // while processing this change 

     TableCellListener tcl = new TableCellListener(
      getTable(), getRow(), getColumn(), getOldValue(), getNewValue()); 

     ActionEvent event = new ActionEvent(
      tcl, 
      ActionEvent.ACTION_PERFORMED, 
      ""); 
     action.actionPerformed(event); 
    } 
} 
} 

这是我如何使用它在表上...

Action action = new AbstractAction() { 
     public void actionPerformed(ActionEvent e) { 
      TableCellListener tcl = (TableCellListener)e.getSource(); 
      if (tcl.getColumn() == 9) { 
       System.out.println(tcl.getNewValue() + " " + (int) t_op.getValueAt(tcl.getRow(), 7)); 
       Object[] options = {"Confirmar", 
       "Voltar"}; 
       int n = JOptionPane.showOptionDialog(null, "Deseja inserir esse ID do Pre-Boleto?", "Confirma\u00E7\u00E3o", 
         JOptionPane.YES_NO_CANCEL_OPTION, 
         JOptionPane.QUESTION_MESSAGE, 
         null, 
         options, 
         options[1]); 
       if (n == 0) { 
        OpPreBolIDWorker sqlw = new OpPreBolIDWorker(t_op, (int) tcl.getNewValue(), (int) t_op.getValueAt(tcl.getRow(), 7)); 
        sqlw.execute(); 
        LiqPreBolIDWorker lfiw = new LiqPreBolIDWorker(t_op, (int) tcl.getNewValue(), (int) t_op.getValueAt(tcl.getRow(), 7)); 
        lfiw.execute(); 
       } else if (n == 1) { 
        t_op.setValueAt(tcl.getOldValue(), tcl.getRow(), tcl.getColumn()); 
       } 
      } 
      if (tcl.getColumn() == 13) { 
       CobrancaWorker cw = new CobrancaWorker(t_op, tcl.getNewValue().toString(), (int) t_op.getValueAt(tcl.getRow(), 7)); 
       cw.execute(); 
      } 
     } 
    }; 

    TableCellListener tcl = new TableCellListener(t_op, action); 

控制台打印出排序后“使用”在该位置的行的值...

这就是我如何整理我的表格。

TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(t_op.getModel()) { 
     @Override 
     public void toggleSortOrder(int column) { 
      if (column >= 0 && column < getModelWrapper().getColumnCount() && isSortable(column)) { 
       List<SortKey> keys = new ArrayList<SortKey>(getSortKeys()); 
       if (!keys.isEmpty()) { 
        SortKey sortKey = keys.get(0); 
        if (sortKey.getColumn() == column && sortKey.getSortOrder() == SortOrder.DESCENDING) { 
         setSortKeys(null); 
         return; 
        } 
       } 
      } 
      super.toggleSortOrder(column); 
     } 
    }; 
    t_op.setRowSorter(sorter); 

Answer 1

从Table Cell Listener博客：

总之，TableCellListener类可以被用作用于在上述的特殊情况下，一个TableModelListener的替代品。您可以实现一个Action，而不是实现TableModelListener。

由于TableModelListener作品上的TableModel，行/列的值将是相对于所述TableModel。因此TableCellListener的行/列值也相对于TableModel。

如果你想相对于表中的值，则需要使用：

int row = table.convertRowIndexToViw(modelRow); 
int column = table.convertColumnIndexToView(modelColumn);