Asynchronous operations in JavaFX
Posted by: surikov on: June 9, 2009
- In: real world| utility
- Comment!
Example requests Google Path API in asynchronous mode. Look to time ticker. The time doesn’t stop while application make request to server
.
Start example via WebStart – http://www.javafx.me/crudfx/examples/Asynchronous.jnlp
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How to use:
import crudfx.util.*;
...
Waiter{
action:makeQuery
onDone:updateGUI
}.serve();
.
Download Netbeans project
http://www.javafx.me/crudfx/examples/Asynchronous.zip
Download CRUDfx SDK
http://www.javafx.me/crudfx/extension/CRUDfx.jar
7 Responses to "Asynchronous operations in JavaFX"
[...] Asynchronous operations in JavaFX Posted June 9, 2009 [...]
What is the Waiter class? The code doesn’t compile.
hi , thanks for the nice post !
i have a question: is it OK to update javaFX variables (like var result in here) from within your Waiter.action() function ?
I am asking casue I heard that this is not recommended and may lead to some kind of instability due to unreported concurrent modifications..
thanks in advance !
NO!!!!
Update GUI from onDone only. I used this in 2 real projects (real projects not useless toys from javafx.com). It works fine.
Thanks for your quick answer !
so there is a difference between updating a javaFX Model variable and updating a javaFX View variable…
The only difference i see there is that the latter one is currently in the scenegraph and i assume now that as soon as some fields of the Model are bound directly to the View components – things get ugly if the model is updated again by some other request of others parts of the programm and i can get around that’s through using the “var parsedResult” as a duplication of the model “var results” which you then can bind to the view. just not straightforward but if you say it works for you, that’s fine !
thank you very much for helping me to get a better understanding on that !
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2 | Baechul
June 12, 2009 at 8:45 pm
I wrote as a blog about asyn in JavaFX 1.2 at
http://blogs.sun.com/baechul/entry/javafx_1_2_async
Hope this help someone.