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Tableviewer & IObservable [message #695343]

Mon, 11 July 2011 10:34

Eclipse User

Hi all

In my Application I use a TableViewer which should be updated if I edit something inside of the table.

How in this sample: (My code is realy based on these sample)

http://dev.eclipse.org/viewcvs/viewvc.cgi/org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet013TableViewerEditing.java?view=markup

But now, if I edit something inside the table will be the value saved in my object, but if I go out of the editing part will be no update on the table.

Is there one important thing which I have forget to implement?

Thank you and cheers,
Markus

[Updated on: Mon, 11 July 2011 10:34] by Moderator

Re: Tableviewer & IObservable [message #696261 is a reply to message #695343]

Wed, 13 July 2011 11:08

Eclipse User

In order for changes to your bean to show up, you must be implementing
the JavaBean specification for bound properties:

public class Person {
private String name;

public String getName() { return name; }

public void setName(String name) {
propertySupport.firePropertyChange("name",
this.name, // old value
this.name = name); // new value
}

// what follows is boilerplate to make your class conform to JavaBean
// specification. To keep it simple you can put this in a common
// superclass and have your beans extend from that.

private PropertyChangeSupport propertySupport =
new PropertyChangeSupport(this);

public void addPropertyChangeListener(
PropertyChangeListener listener) {
propertySupport.addPropertyChangeListener(listener);
}

public void removePropertyChangeListener(
PropertyChangeListener listener) {
propertySupport.removePropertyChangeListener(listener);
}

public void addPropertyChangeListener(
String name, PropertyChangeListener listener) {
propertySupport.addPropertyChangeListener(name, listener);
}

public void removePropertyChangeListener(
String name, PropertyChangeListener listener) {
propertySupport.removePropertyChangeListener(name, listener);
}
}

Note also that you have to use BeansObservables/BeanProperties to
observe these. PojoObservables/PojoProperties assume you are not
implementing the JavaBean specification, and will not try to listen for
change notifications.

Matthew

On 07/11/2011 08:34 AM, forums-noreply@eclipse.org wrote:
> Hi all
>
> In my Application I use a TableViewer which should be updated if I edit
> something inside of the table.
> How in this sample: (My code is realy based on these sample)
>
> http://dev.eclipse.org/viewcvs/viewvc.cgi/org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet013TableViewerEditing.java?view=markup
>
>
> But now, if I edit something inside the table will be the value saved in
> my object, but if I go out of the editing part will be no update on the
> table.
> Is there one important thing which I have forget to implement?

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