T5: @Persist form field or not?

[Angelo Chen]

Hi,

I have two classes, Edit1 and Edit2,  name is the form field, when I submit
the form using Edit1, everything works, and when I tried Edit2, it generates
an exception:

java.lang.NullPointerException
Stack trace
        •       org.bfe.test.t5.pages.Edit.setName(Edit.java:52)
        •
org.apache.tapestry.internal.bindings.PropBinding.set(PropBinding.java:67)

What's the difference here? if I @Persist usr, error goes away, then why I
don't have @Persist name in the Edit1's case? thanks.

A.C.


public class Edit1 {
    private String name;

    public String getName() {
        return name;
    }

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

public class Edit2 {
    private Usr usr;

    public String getName() {
        return usr.getName();
    }

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


-- 
View this message in context: 
http://www.nabble.com/T5%3A-%40Persist-form-field-or-not--tf4669367.html#a13338569
Sent from the Tapestry - User mailing list archive at Nabble.com.


---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]