well,
you should have three files -
1 tableService.java
this is an interface that extends RemoteService.
the methods here can return anything you want - for instance
public Vector getMyVector(Vector input); // just an example - I dont'
know how your app works
2 tableServiceAsync.java interface, doesnt' extend anything
all methods must return void. the method name must match the
non-async method above: i.e.:
void getMyVector(Vector input, AsyncCallback);
3: whateEverYouCallYourImplementation.java
This is the server side stuff where you actually query your db. you
should have this class referenced in your xml file
this is not an interface all you query / update /delete is here
public Vector getMyVector(Vector input){
...
return myNewVector;
}
Not sure if that helps or not
Your above code:
public void onSuccess(Object result)
{
return;
}
can actually be
public void onSuccess(Vector result)
{
//... process the vector in the client
}
On Wed, Sep 10, 2008 at 3:56 PM, Kevin <[EMAIL PROTECTED]> wrote:
>
> The following text is what I got from GWT's RCP notes, <http://
> code.google.com/webtoolkit/documentation/
> com.google.gwt.doc.DeveloperGuide.RemoteProcedureCalls.html>
>
> "For the same reason, asynchronous methods do not have return types;
> they must always return void."
>
> So, to use a method with an RPC, am I just doing the following?
>
> in .../client/table.java
>
> public void Request() /* Makes RPC */
> {
> table = (tableServiceAsync)GWT.create(tableService.class);
> ServiceDefTarget endpoint = (table)threatBoard;
> endpoint.setServiceEntryPoint(GWT.getModuleBaseURL() +
> "table");
> }
>
> public void onModuleLoad() {
>
> ...
>
> // call loadFromTable using RPC
>
> threatBoard.loadFromSQL(new AsyncCallback()
> {
> public void onSuccess(Object result)
> {
> return;
> }
> public void onFailure(Throwable caught)
> {
> return;
> }
> });
>
> // all business logic is in .../server/tableImpl
>
> I'm lost, please guide me.
>
> Thanks
>
>
> On Sep 10, 4:46 pm, "Jeremiah Elliott" <[EMAIL PROTECTED]> wrote:
>> Why make the rpc return void? Just have it return your collection.
>>
>>
>>
>> On Wed, Sep 10, 2008 at 3:17 PM, Kevin <[EMAIL PROTECTED]> wrote:
>>
>> > Hi,
>>
>> > I created a GWT FlexTable, "table", and a SQL database, "database".
>> > The table adds a row of editable cells and removes a specified row. I
>> > wrote two functions: loadFromSQL and loadFromTable. The first copies
>> > what's in the database to the table. The latter copies what's in the
>> > table to the database.
>>
>> > I tried to use SQL commands in my java driver under the "client"
>> > directory, however no SQL support is available. After that I knew I'd
>> > have to use RPC's. So, basically my question is, how to implement my
>> > static database class from an RPC?
>>
>> > Assuming GWT supported SQL, I'd type v = D.loadFromSQL(); (assume
>> > loadFromSQL outputs a vector). Then I'd parse v, filling up the
>> > table.
>>
>> > With the RPC's, I don't know what should be returned when using a
>> > "void" async method.
>>
>> > Please give me some guidance.
>>
>> > Thanks,
>> > Kevin- Hide quoted text -
>>
>> - Show quoted text -
> >
>
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