hello!
i would prefer the first option. ;)
i changed my code to this:
callAsync: function( method, args )
{
var handler = function( result, exc, id )
{
if ( exc == null )
{
//alert( result );
}
else {
alert( "RPC-Exception: " + exc + " ( ID: " + id + ")" );
}
};
this.__rpcRunning = this.__rpc.callAsync( handler, method, args
);
this.__rpc.addListener( "completed", function(e)
{
this.__result = e.getData();
}, this );
alert( this.__result );
}
but i get "null" as value .. whats wrong? :)
Noggin182 wrote:
>
> Hi Again,
> The call to the backend is asyncrounous, your
> qxgui.utils.Rpc.callAsync() function will return immediately.
>
> There are two ways forward, you can either change your class so it fires
> an "complete" event, or change the function so it accepts a callback.
>
> From the callAsync() function it looks like you are expierenced enough
> to do either without help.
>
> The two choices would make your calling code look like this:
>
> Option 1.)
>
> var rpc = new qxgui.utils.Rpc;
> rpc.callAsync( "doLogin", [ username, userpw ] );
> rpc.addListener("complete", function(e)
> {
> var result = e.getData();
> });
>
> Option 2.)
>
> var rpc = new qxgui.utils.Rpc;
> rpc.callAsync( "doLogin", [ username, userpw ], function(result)
> {
> alert(result);
> });
>
>
> If you need more help, just decide first which one best meets your
> requirements and let us know :)
>
> HTH,
> Matt
>
>
> sNIk wrote:
>> hello there. i want to simplify the usage of rpc and ran into a problem
>> with
>> the handler. example:
>>
>> usage:
>> -------------------------------------------------------------------------------------
>>
>> var rpc = new qxgui.utils.Rpc;
>> rpc.callAsync( "doLogin", [ username, userpw ] );
>> var result = rpc.getResult();
>>
>>
>> class:
>> -------------------------------------------------------------------------------------
>>
>> qx.Class.define("qxgui.utils.Rpc",
>> {
>> extend: qx.core.Object,
>>
>> construct: function( url, service )
>> {
>> // standard-paramenter
>> some statements ...
>>
>> // konfigurieren
>> rpc = new qx.io.remote.Rpc( url, service );
>>
>> rpc.setTimeout( this.__timeout );
>> rpc.setCrossDomain( this.__crossDomain );
>>
>> this.__rpc = rpc;
>> },
>>
>> members:
>> {
>> // eigenschaften
>>
>> ////////////////////////////////////////////////////////////////////////
>>
>> __url: "xxx",
>> __service: "xxx",
>> __timeout: 5000,
>> __crossDomain: true,
>>
>> __rpc: null,
>> __id: null,
>> __exc: null,
>> __result: null,
>> __rpcRunning: null,
>>
>>
>> // methoden
>>
>> ////////////////////////////////////////////////////////////////////////
>>
>> callAsync: function( method, args )
>> {
>> var handler = function( result, exc, id )
>> {
>> if ( exc == null )
>> {
>> this.__result = result;
>> }
>> else {
>> alert( "RPC-Exception: " + exc );
>> }
>> };
>>
>> this.__rpcRunning = this.__rpc.callAsync( handler, method,
>> args
>> );
>> },
>>
>> isRpcRunning: function()
>> {
>> return this.__rpcRunning;
>> },
>>
>> getResult: function()
>> {
>> return this.__result;
>> }
>> }
>> });
>>
>>
>> how do i get the result into the right scope?
>
>
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