[TAPESTRY-1359] The BeanEditForm component should attempt to create its object parameter if it is null

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0
• Fix Version/s: 5.0.5
• Component/s: tapestry-core
• Assignee: Howard Lewis Ship
• Reporter: Howard Lewis Ship
• Created: 15/Mar/07 17:42
• Updated: 14/May/07 22:02
• Resolved: 14/May/07 22:02

Description

You have to write a bit of minor scaffolding:

private MyObject _object;

void onPrepare() {
if (_object == null)
_object = new MyObject();
}

Seems like the BeanEditForm could do this on its own: check for null, create a new instance, update the parameter at the end of the render or form submission.

Obviously, this is predicated on the type being a JavaBean with a no-args constructor, and not an interface or abstract class, or anything else more complicated.

Issue Links

• incorporates: TAPESTRY-1361 BeanEditForm will throw NullPointerException if its object parameter is bound to null