You have to convert your code to use a callback:
Instead of:
void onClick() {
myObject.doSomethingAsync(xyz);
myObject.getConnection();
//additional code
}
convert it to:
void onClick() {
myObject.doSomethingAsync(xyz, new Callback() {
void onSuccess() {
myObject.getConnection();
//additional code
}
});
}
void doSomethingAsync(Object o, Callback cb) {
serverService.rpcMethod(o, new AsyncCallback<Object> {
void onSuccess(Object result) {
setConnection(true);
cb.onSuccess(); //notify caller via its callback
}
}
}
Alternatively you can use two events (one event results in execution of the
async method and the second one will be fired when the async request has
been finished).
-- J.
Am Montag, 19. März 2012 16:30:58 UTC+1 schrieb learning coding:
>
> HI all
>
> I am doing web application Project in GWT. I am using RPC, which is
> working fine.
>
> I have 4 packeages
>
> 1. .client
> 2. .client.GUI
> 3. .client.control
> 4. .shared
> 5. .server
>
> From .gui.loginpage
>
> On onClickmethod of a button I make a object of Login Class which is in
> client.control
>
> onSuccess of RPC public Boolean setConnection(true)
>
> but when i try to getConnectionform .gui.loginpage its show me null.
>
> because the call back function is executed asynchronously, the function is
> invoked after the response comes to the browser from the server.
>
> But the other part of the code is executed immediately by which time
> connection is still null.
> *I need a solution or a method or any logic so that other function waits
> till the rpc call is complete.*
> **
> *Thanks*
>
>
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