Hello,
I've got a strange (at least for me) problem:
Start.java:
new RetrieveDeck(deck); // this starts a new query to the server
where it gets a json object
System.out.println(deck + " size:" + deck.size()); // get debug
information
RetrieveDeck.java:
public RetrieveDeck(FlashCardList deck) {
this.deck = deck;
String url = URL.encode(GWT.getModuleBaseURL() + "sampleDeck");
RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
builder.sendRequest(null, new RequestCallback() {
@Override
public void onResponseReceived(Request request,
Response response) {
if (200 == response.getStatusCode()) {
JsArray<FlashCardData> tmp =
FlashCardData
.asArrayOfFlashCards(response.getText());
getDeck().populate(tmp); //
here i pass the data to be added in
a list
});
protected FlashCardList getDeck() {
return deck;
}
}
List.java:
public void populate(JsArray<FlashCardData> decks) {
for (int i = 0; i < decks.length(); i++) {
add( /* get a lot of infomation and add it to the list */);
}
System.out.println(this + " size:" + size()); // get debug
information
}
This all should work fine (I think) but if I run the program I get the
following output:
.client.cards.flashcardl...@19fdee7 size:0 // this is from Start.java
.client.cards.flashcardl...@19fdee7 size:2 // this is form List.java
As you can see the empty list at the beginning is first printed ...
How can I make the program stop until the list is populated?
Thank you very much.
Mark
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