updated only when entering a new : commit() PLEASE HELP

General
1

I have the following class


public class ControlHardware   {
       ..................

	public BeanItemContainer<Scannerr> getListaScannerOficina() {
		List<Scanner> lista = null;

		try {
			
			lista = this.getControladorInventario().getServicioScanner()
					.listaScannerOficina(this.getControladorDominio().getOficinaSeleccionada(), 0, 20);
		} catch (ExcepcionDao e) {

			e.printStackTrace();
		}
		BeanItemContainer<Scanner> cu;
		if (lista != null && !lista.isEmpty()) {
			cu = new BeanItemContainer<Scanner>(lista);
		} else {
			cu = new BeanItemContainer<Scanner>(Scanner.class);
		}
		return cu;

	}	
}

to change the source table


 table.setContainerDataSource( ControlHardware.getListaScannerOficina());

and Form


public class Formularioextends Form implements ClickListener {
		............	
               setWriteThrough(false);		
		......

	}

	@Override
	public void buttonClick(ClickEvent event) {
		Button source = event.getButton();

		if (source == save) {
		     super.commit();		
			
		} 
	}

       @Override
	public void setItemDataSource(Item newDataSource) {
		newContactMode = false;
		if (newDataSource != null) {
			List<Object> orderedProperties = Arrays
					.asList(this.NATURAL_COL_ORDER_DISPOSITIVO);
			super.setItemDataSource(newDataSource, orderedProperties);

			setReadOnly(true);
			
		} else {
			super.setItemDataSource(null);
			getFooter().setVisible(false);
		}
	}

}

When you update an item (bean), the changes are not reflected in table,but
only if I add a new item changes are reflected

example:

Table

code name
125 juan
126 pedro

I choose the first item

From____________________
code 125
name juan

add edit salve

click on edit

From
code 128
name juan

click on salve

table
code name
125 juan
126 pedro

change table not reflected,but click in add

From
code 130
name nameNew

click on save

Table_____________________
code name
128 juan :blink:
126 pedro
130 nameNew

The first item was updated at the time of entering a new item, any suggestions???:blink:(=