More Java open source trading platforms including important real time strategy building with order book. Neat!
Note the comment of from: http://www.elitetrader.com/vb/showthread.php?threadid=163414
Why the choice of C++? How about Java?
You can see an open source ATS written in Java for the IB API at http://code.google.com/p/jsystemtrader/
With JSystemTrader it is rather straightforward to modify an existing strategy or write a new strategy, backtest it and run it in realtime.
If you want to work with the order book there is JBookTrader http://code.google.com/p/jbooktrader/
JBookTrader looks quite good but I question JSystemTraders as do others on Source ForgeFACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!