@Override
	public Class<?> getColumnClass(int columnIndex) {
		if (columnIndex == DATE_COL) {
			return Date.class;
		}
		if (columnIndex == VERSION_COL) {
			return Integer.class;
		}
		return String.class;
	}
Table model for showing checkout information for a domain file.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/datatree/CheckoutsTableModel.java