Question

I am working on an Ext GWT 3 (beta) application.

I am trying to display a simple value of a dependent bean in a Grid.

My data beans look like this:

public class MyBean {
    private String content;

    private MyOtherBean otherBean;

    // getters and setters here...
}


public class MyOtherBean {
    private String otherBeanContent;

    // getter and setter here...
}

The PropertyAccess looks like this:

interface MyBeanProperties extends PropertyAccess<MyBean> {

    ModelKeyProvider<MyBean> key();

    ValueProvider<MyBean, String> content();

    ValueProvider<MyBean, MyOtherBean> otherBean();
}

With the corresponding ColumnConfiguration, my grid now displays one column with content of MyBean and one column with MyOtherBean‘s toString().

But I want to display MyOtherBean.otherBeanContent instead (without changing MyOtherBean‘s toString()).

I think I need some kind of value converter and register it for the column? Or am I taking the wrong approach here?

Answer 1

This did the trick:

columnConfig.setCell(new PropertyDisplayCell<MyOtherBean>(new PropertyEditor<MyOtherBean>() {

        @Override
        public MyOtherBean parse(CharSequence text) throws ParseException {
            return otherBean.setOtherBeanContentFromText(text);
        }

        @Override
        public String render(MyOtherBean otherBean) {
            return otherBean == null ? "" : otherBean.getOtherBeanContent();
        }
    }));