The structure of the data represented by your controller is much less likely to change than the implementation of how that data is presented to the user. The reason for this is that when your boss comes to the office and tells you he wants the TextField to be replaced by a TextArea, or a ComboBox, or some other control, then it's going to be a lot harder if classes outside of the controller are using your TextField. For example, instead of defining a getTextField() method in the controller, instead define a textProperty() method that returns a StringProperty representing the contents of the TextField. The FXMLLoader has a getController() method that allows you to retrieve a reference to the controller.Ī related point: it's also not a good idea to expose the UI controls from the controller. To allow access to instance data, you just have to have a reference to the instance. In other words, static defines scope, not accessibility.
A static field has a single value belonging to the class, instead of a value for each instance of the class, and the decision to make fields static should only be made if that makes sense. In particular, don't use static fields just to enable them to be accessible from outside the class. If you had a static injected fields in the controller, and you loaded the same FXML file twice and displayed it twice in the UI, then you would have no way of referencing both sets of controls. So the injected fields are necessarily specific to the controller instance. A new controller instance is associated with each call to FXMLLoader.load(.) and the fields in that controller instance are injected with the corresponding objects created for the FXML elements. When you load an FXML file, it creates new objects for each of the elements in the FXML file. It doesn't really make much sense to make fields static. Since no official documentation ever supported this use, it's doesn't really violate backward compatibility, though in fairness the documentation on exactly what the FXMLLoader does is pretty woeful. Something like static TextField myTextField It sounds like you are trying to inject a TextField into a static field. Not that I know of, but I doubt you need an alternative.
#OPENJDK 7 ON MAC DOWNLOAD#
You don't have to download anything, just start using them in your editor:Īre there any alternatives to these extensions that are Java 7 compatible?
They are also included in the Oracle distribution, unjar rt.jar to see them.
They are included in OpenJDK 7, you can find the sources in /src/macosx/classes/com/apple and supported by Oracle as hinted by the messages and bug fixes readable on the macosx-port-dev mailing list.
#OPENJDK 7 ON MAC MAC#
No problems on the distribution side either, as the app is on sale on the Mac App Store.Īre they included in Java 7, and if not, can I download them to bundle into my app? I can confirm though this works as expected with OpenJDK 7. I can't vouch for the complete API as I only need a subset to support drag-drop behaviour on the app icon and on the app frame. They are included both in the Oracle distribution and in OpenJDK. Will a Mac running Java 7 be able to use the Apple Java Extensions? Are there any alternatives to these extensions that are Java 7 compatible?.Are they included in Java 7, and if not, can I download them to bundle into my app?.Will a Mac running Java 7 be able to use the Apple Java Extensions?.Searching the web has not proved very fruitful and I have no idea about if they are compatible with Java 7 or are even included.
#OPENJDK 7 ON MAC MAC OS X#
I do see that the goal for the Mac OS X port of OpenJDK aims to "Include a complete, native Cocoa-based UI Toolkit", but I can't find much about what this entails. It is my understanding that Apple merged their OS X implementation into OpenJDK, but I'm not sure whether these extensions went with it. However, I can't find anything indicating whether or not these extensions are included with Java 7 or even usable with Java 7. These allow for things like handling the behavior of the "About" menu and supporting drag and drop onto the application icon. In order to help Java apps look more like native apps when run on Mac OS X, Apple created the Apple Java Extensions in order to make Java apps behave more like Mac OS X.