How to keep cursor on row when data is updated?

问题

The data in SPA should be updated periodically to show the current db state in the table. I'm trying to do it by the click event on a table row.

table.addListener(
    new Table.ValueChangeListener() {
        public void valueChange(final ValueChangeEvent event) {

            BeanItemContainer<Incoming> bic;
            Query query = sess.createQuery("...");
            List l = query ...
            bic = new BeanItemContainer<Incoming>(l);
            table.setContainerDataSource(bic);
        }
    }
);

But at this line the cursor is lost:

table.setContainerDataSource(bic);

How can I keep cursor on row when data is updated?

回答1:

With your current approach, I would do :

...
Object selection = table.getValue();
bic = new BeanItemContainer<Incoming>(l);
table.setContainerDataSource(bic);
table.setValue(selection);
...

来源：https://stackoverflow.com/questions/13043152/how-to-keep-cursor-on-row-when-data-is-updated