P2P_QueryClient_Instanciator.setSubgraphSubmission(withSubgraphSubmission);
/*
* ask which instance is to be used
*/
PeerItem instance = configurationUI.showDialog();
if (instance != null && instance.queryEvaluator != null) return instance.queryEvaluator;
return null;
} finally {
P2P_QueryClient_Instanciator.unlock();
}