throw new Error("This evaluator does not support named graphs!");
}
final TriggerOneTime trigger = new TriggerOneTime(true);
this.currentPatternMatcher.addSucceedingOperator(trigger);
if(opID!=null) {
trigger.addSucceedingOperator(opID);
}
}
@Override
public void createEmptyIndexScanAndConnectWithRoot(final OperatorIDTuple opID) {