private boolean validateForecastPerformersInGroup()
{
boolean res = true;
if (groupForecastPerformerInfos.size() > 1)
{
final IForecastPerformer firstForecastPerformer =
groupForecastPerformerInfos.get(0).getForecastPerformer();
int inputsCount = firstForecastPerformer.getInputsCount();
int outputsCount = firstForecastPerformer.getOutputsCount();
for (int i = 2; i < groupForecastPerformerInfos.size(); ++i)
{
IForecastPerformer fp = groupForecastPerformerInfos.get(i).getForecastPerformer();
if (fp.getInputsCount() != inputsCount || fp.getOutputsCount() != outputsCount)
{
res = false;
break;
}
}