Vaadin, Table generated column value - vaadin

Question

I use table component and generate column for optiongroup.
when change optionGroup's value, and click the save button,
the table get the before value - not changed value..
How to get the chaged value ? Not origin value.
here code...
public class MyTypeColumnGenerator implements ColumnGenerator{
public Object generateCell( Table source, Object itemId, Object columnId) {
BeanItem<MyType> beanItem = (BeanItem<MyType>)source.getItem(itemId);
MyType view = beanItem.getBean() ;
if(view.getValueType().equals(ValueType.Flag)){
// radio
OptionGroup opt = new OptionGroup() ;
opt.addItem(1) ; // y
opt.addItem(0) ; // n
opt.setItemCaption(1, Messages.getString(Messages.Opt_Y));
opt.setItemCaption(0, Messages.getString(Messages.Opt_N));
opt.setStyleName("horizontal");
if(view.getFactorValue() == 0){
opt.select(0);
}else if(view.getFactorValue() == 1){
opt.select(1);
}
return opt ;
}else{
Label label = new Label();
label.setValue("N/A");
return label;
}
}
}
btnSave.addClickListener(new ClickListener() {
/**
*
*/
private static final long serialVersionUID = 1L;
#Override
public void buttonClick(ClickEvent event) {
Collection<?> items = table.getItemIds() ;
for (Object item : items) {
Property pName = table.getContainerProperty(item, "name");
Property pVal = table.getContainerProperty(item, "value");
}
pVal gets only origin value , not changes value.

Answer 1

You have to add a ValueChangeListener to the OptionGroup and inside the listener actually set the value on your MyType view using something like view.setValue(...).
Your code would then look something like that:
OptionGroup opt = new OptionGroup() ;
opt.addValueChangeListener(new Property.ValueChangeListener() {
#Override
public void valueChange (Property.ValueChangeEvent event){
view.setValue(event.getProperty().getValue());
}
});