[dsdp-dd-dev] DSF Query object

[Serhat Aydın <serhat.aydin@xxxxxxxxxxxxxx>]

I am looking at the example code "SyncDataViewer" which is about DSF Query object from the "Introduction to Programming vith DSF" tutorial.

// Create the query object for reading data count. 
Query<Integer> countQuery = new Query<Integer>() {
    @Override
    protected void execute(DataRequestMonitor<Integer> rm) {
        fDataGenerator.getCount(rm);
    }
};
        
// Submit the query to be executed.  A query implements a runnable
// interface and it has to be executed in order to do its work.
ImmediateExecutor.getInstance().execute(countQuery);
int count = 0;
       
// Block until the query completes, which will happen when the request
// monitor of the execute() method is marked done.
try {
    count = countQuery.get();
} catch (Exception e) { 
    // InterruptedException and ExecutionException can be thrown here.
    // ExecutionException containing a CoreException will be thrown 
    // if an error status is set to the Query's request monitor.
    return new Object[0]; 
}


I could not understand that how   countQuery.get();   method gets the count value. Because in IDataGeneration interface getCount method returns void such as:

// Data access methods.
void getCount(DataRequestMonitor<Integer> rm);