IntegerEditingSupport.java 文件源码

@Override
public CellEditor getCellEditor(Object element) {
    TextCellEditor textCellEditor = new TextCellEditor((Composite) getViewer().getControl());
    textCellEditor.setValidator(new ICellEditorValidator() {
        public String isValid(Object value) {
            try {
                Long.parseLong((String) value);
            } catch (NumberFormatException e) {
                return "No valid integer value!";
            }
            return null;
        }
    });

    return textCellEditor;
}