Examples of org.eigenbase.runtime.CompoundParallelTupleIter$Test

CompoundParallelTupleIter creates one TupleIter out of several. Unlike its serial counterpart {@link CompoundTupleIter}, it runs all its inputs in parallel, in separate threads that it spawns. It outputs the next element available from any of its inputs. Note that the order of output rows is indeterminate, since it is unpredictable which input will arrive next.

The compound TupleIter is finished when all of its inputs are finished. The set of input iterators is fixed at construction.

This variant is needed when an input is infinite, since CompoundTupleIter would hang. Extending this class to preserve order is problematic, given its low level:

items Are now synthetic {@link Object}s.
Items would have to become things that expose a {@link Comparable} key value.
Even if one input lags behind the other provding a {@link Iterator#next()} value, that missing value might sort before its availablecounterparts from the other inputs. There is no basis to decide to wait for it or not.

@author Marc Berkowitz @version $Id$

                break;
            }
            case 6: {
                // Eseguo i test per il layout di gestione dei warkaround
                // Verifico la presenza di tutti i file necessari
                Test test = new Test();
                test.waTest(false);
                break;
            }
            case 7: {
                // Elimino tutti i wa html
                String fileSelected = (LayoutWA.listaHtml.getSelectedValue() != null) ? LayoutWA.listaHtml.getSelectedValue().toString() : null;

Examples of org.eigenbase.runtime.CompoundParallelTupleIter$Test

Related Classes of org.eigenbase.runtime.CompoundParallelTupleIter$Test