The 23-year-old scored twice for Die Mannschaft at the Aviva Stadium to help them maintain their perfect start to the 2014 World Cup qualifying campaign.
"We have big plans," he is quoted as saying by Sportschau.
"The coach (Joachim Low) prepared us very well. We were in control of the match from the beginning, but unfortunately chances were not forthcoming."
Germany are currently at the top of Group A with nine points from three matches.