FXMLLoader & BuilderFactory

Florian Brunner fbrunnerlist at gmx.ch
Fri May 31 15:33:34 PDT 2013


Hi Daniel,

Thanks for your response.

> When you say 'instance' what do you mean? A controller or a node or something else?
I'm looking for a way to get notified when a Node gets created.

Regards,
Florian

Am Donnerstag, 30. Mai 2013, 08.25:23 schrieb Daniel Zwolenski:
> When you say 'instance' what do you mean? A controller or a node or something else?
> 
> A controller can be notified when it is initialized (and all the associated nodes will be initialized by this point):
> 
> http://docs.oracle.com/javafx/2/api/javafx/fxml/Initializable.html
> 
> Does that give you the hook ins you need?
> 
> On 30/05/2013, at 8:03 AM, Florian Brunner <fbrunnerlist at gmx.ch> wrote:
> 
> > Hi,
> > 
> > I'm experimenting with FXMLLoader. Is there a way to get notified, when an instance gets created?
> > 
> > I tried to work with a wrapper class for BuilderFactory, like this:
> > 
> > public class WrapperBuilderFactory implements BuilderFactory {
> > 
> >    private final BuilderFactory builderFactory;
> > 
> >    public WrapperBuilderFactory(BuilderFactory builderFactory) {
> >        this.builderFactory = builderFactory;
> >    }
> > 
> >    @Override
> >    public Builder<?> getBuilder(Class<?> type) {
> >        Builder<?> builder = builderFactory.getBuilder(type);
> >        return new WrapperBuilder<>(builder);
> >    }
> > 
> >    private static class WrapperBuilder<T> implements Builder<T> {
> > 
> >        private final Builder<T> builder;
> > 
> >        public WrapperBuilder(Builder<T> builder) {
> >            this.builder = builder;
> >        }
> > 
> >        @Override
> >        public T build() {
> >            T t = builder.build();
> >            doSomething();
> >            return t;
> >        }
> > 
> >        private void doSomething(){
> >            // do something
> >        }
> >    }
> > } 
> > 
> > and then call:
> > FXMLLoader loader = new FXMLLoader();
> > loader.setBuilderFactory(new FXMLControllerBuilderFactory(loader.getBuilderFactory()));
> > 
> > 
> > But it seems that BuilderFactory.getBuilder usually returns null, which gets treaded completely differently (instance created at XML start tag) than when a Builder gets returned (instance created at XML end tag).
> > 
> > Is there another way to get notified when an instance gets created?
> > 
> > Otherwise I will file an enhancement request.
> > 
> > Kind regards,
> > Florian
> > 


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