Clean way in GWT/Java to wait for multiple asynchronous events to finish
- by gerdemb
What is the best way to wait for multiple asynchronous callback functions to finish in Java before continuing. Specifically I'm using GWT with AsyncCallback, but I think this is a generic problem. Here's what I have now, but surely there is cleaner way...
AjaxLoader.loadApi("books", "0", new Runnable(){
public void run() {
bookAPIAvailable = true;
ready();
}}, null);
AjaxLoader.loadApi("search", "1", new Runnable(){
public void run() {
searchAPIAvailable = true;
ready();
}}, null);
loginService.login(GWT.getHostPageBaseURL(), new AsyncCallback<LoginInfo>() {
public void onSuccess(LoginInfo result) {
appLoaded = true;
ready();
}
});
private void ready() {
if(bookAPIAvailable && searchAPIAvailable && appLoaded) {
// Everything loaded
}
}
