Re: Value of Bean properties are updated, but the Property Sheet doesn't refresh?

> From: rhizomorph <khufu_lotus@...>
> To: dev@...
> Sent: Wednesday, June 17, 2009 12:44:32 PM
> Subject: [openide-dev]  Value of Bean properties are updated, but the Property Sheet doesn't refresh?
>
> Thanks for those links, but I'm not sure that's exactly what I'm looking for.
> There seems to be plenty of information about how to create your own
> nodes/property sheets etc, but I'm not concerned with that really. I just want
> access to the property sheet that NETBEANS itself uses to display the properties
> of an object that has been dragged into the GUI from the palette (not one that I
> create).
>
>
>
> All I'm really trying to say is: "Hey Netbeans, pay attention to these
> properties and refresh them whenever they change, even if the change wasn't made
> through the property sheet". Because currently, ONLY changes made through the
> property sheet are actually updated in the property sheet. If one changes
> variable A through the property sheet, and variable B is changed as a result,
> only A's value will be refreshed - B will still get changed in the actual
> object, but the property sheet will still show the old value.
>
>
>
> I've spent the last two days reading endless javadoc about the NodesAPI (and
> related), which seems to let me do everything EXCEPT the one very simple task
> I'm trying to accomplish.
>
>
>
> In my latest attempt, I tried to use PropertySupport.Reflection to get/set
> values on the property sheet for a given Bean, like this...
>
>
>
>
> Code:
> public void setA(int newValue) {
>
>     int oldA = A;
>
>     int oldB = B;
>
>     A = newValue;
>
>     B = 5*A;    // make some dependent change to B.
>
>
>
>     propertySupport.firePropertyChange("propertyA", oldA, A);
>
>     propertySupport.firePropertyChange("propertyB", oldB, B);  // Does NOT
> update the property sheet.
>
>
>
>     Property prop = new PropertySupport.Reflection(this, Integer.TYPE, "B");  //
> This fails!
>
>     prop.setValue(B);  // This MIGHT work, if I can even get this far!
>
> }
>
>
>
>
>
> But I can't seem to instantiate a Property variable to save my life, I get:
>
>
>
>
> > java.lang.NoClassDefFoundError: org/openide/nodes/PropertySupport$Reflection
>
>
>
>
> Whatever the hell that means - it compiles fine, so I don't know why it
> all-of-a-sudden realizes that a class definition is missing. I also tried using
> Property prop = new PropertySupport.Reflection(this, Integer.class, "B");
> because I wasn't sure of the proper call, but this fails too.
>
>
>
> Any ideas? I can't possibly be the first person to create a bean in which two or
> more modifiable properties also happen to be interdependent.
>
>
>
>
> Wade Chandler wrote:
> > Not sure off the top of my head. Have you seen:
>
> > http://platform.netbeans.org/tutorials/nbm-nodesapi2.html
>
> >
>
> > Maybe there is something you missed in there. If that doesn't help let me
> know, and I'll see if I can do up a test at some point. What version are you
> using?
>
> >
>
> > Wade
>
> >