Change Cell Editor for specific Cells with AbstractTableModel

Question

I have a written an AbstractTableModel for my JTable in my application. I see from tutorials that I can make the column to have a combobox by getting the column model and then the specific column for example:

TableColumn sportColumn = table.getColumnModel().getColumn(2);
...
JComboBox comboBox = new JComboBox();
comboBox.addItem("Snowboarding");
comboBox.addItem("Rowing");
comboBox.addItem("Chasing toddlers");
comboBox.addItem("Speed reading");
comboBox.addItem("Teaching high school");
comboBox.addItem("None");
sportColumn.setCellEditor(new DefaultCellEditor(comboBox));

But how do I do this for a specific cell or a row?

Answer 1

The JTable’s default implementation is column-based. The only way to change that behavior, if you want to have row or single-cell based choices, is to create a subclass of JTable and override the method public TableCellEditor getCellEditor(int row, int column). Inside your implementation you can use the provided row and column indices to make a different choice. The JTable will always use this method to get the cell editor.

Answer 2

you would need to use, override

1. prepareEditor

2. TableCellEditor(required to synchronize editor and renderer)