AnnotateDataBinder: when the expr is pointing to a NULL object

asked 2013-04-15 15:21:46 +0800

gganassin
540 ● 6
http://www.hybris.com/

updated 2013-04-15 21:05:39 +0800

Hello Folks!

Assuming the following:

    public class ClassOne {

    private ClassTwo two;

    public ClassTwo getTwo() {
        return two;
    }

    public void setTwo(ClassTwo two) {
        this.two = two;
    }

}

and

    public class ClassTwo {

    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

and

    <textbox value="@bind(one.two.name)" />

So: if ClassOne instance has an empty ClassTwo property ---> the databinder will try to bind it but, finding a null, it will fail to set the value in the poor name property of ClassTwo.

My problem - let's say more like a drama at the moment - is that this happens silently - without no warning or way to catch this programmatically.

Does any of you have any suggestions about HOW to solve/workaround this in order NOT to lose any change committed by the user?

Thanks! Giovanni