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i would like if it is possible to have some chain of notifychange.
For example,
a setter is called and it has a @NotifyChange for some attributes, but in the setter method, others methods are called and have their own @NotifyChange.
It seems the children are not called. Is there a way to do it ?
Thank you.
@NotifyChange({"myVar"})
public void setMyVar(String myVar) {
this.myVar = myVar;
if myVar.equals("test") {
loadInterface();
}
}
// Seems NotifyChange not be called
@NotifyChange({"tata", "titi", "tutu"})
public void loadInterface() {
tata = "ok";
titi = "nok";
tutu = "NA";
}
I think for single Variable NotifyChange u have to use like this...
@NotifyChange("myVariable")if You want to notify every variable declare in class you can use.
@NotifyChange("*")Mmmmh... I made something like e.g.:
@NotifyChange({"offsetDate", "measures"})
@Command("setOffsetDate")
public void setOffsetDate (@BindingParam("offsetDate") Date d){
this.offsetDate = d;
this.measures = this.readLatestMeasures();
}
It worked for me... but the approach is a bit different, could be nice to understand if you encountered a limitation in the notification chain or not.
I've noticed the same thing when trying to call another method in your ViewModel. It would be nice if you only had to annotate the method closest to the data.. but that's not the case... you need to use notify on the method that is 'first called from your view.'
For example I wish you could do...
@Command
public void update() {
//..do stuff
updatePage();
}
@Command
public void create() {
//..do stuff
updatePage();
}
@NotifyChange("stuff")
public void updatePage() {
stuff = service.getStuff();
//..doStuff
}
The above won't work though. You need to have the @Notify("stuff") on both the update and the create methods. If you have a lot to notify that's sort of annoying. Note also, the update or create might not even be setting "stuff" - it's done another method.. but you have to declare on the initial command called.
On a related note, I'd also like to be able to use a single command as both a regular @Command and a @GlobalCommand but I can't figure out how to to do it? So I end up with two method have have identical Notifies on them. Annoying when you have a lot of properties and dont' want to use *
@NotifyChange("stuff")
@Command
public void doStuff() { }
//all this does is proxy to one above, be nice if I could make the one
//above act as both a regular view command and a global?
@NotifyChange("stuff")
@GlobalCommand
public void doStuffGlobal() {
doStuff();
}
Mmmhhh... interesting, I have still not evaluated the whole ZK 6.X stuff...
http://books.zkoss.org/wiki/ZK%20Developer's%20Reference/MVVM/Syntax/ViewModel/@DependsOn deserves attention indeed, although I still do not clearly see the solution... thanks!
And for @Command and @GlobalCommand I think this is the only way so far... at least, it (annoyingly ;) works...
Asked: 2012-10-30 11:28:05 +0800
Seen: 224 times
Last updated: Oct 30 '12