static void Main(string[] args)
{
var env = StreamExecutionEnvironment.GetExecutionEnvironment();
DataStream <UserAction> actions = null;
DataStream <ActionPattern> patterns = null;
var actionsByUser = actions.KeyBy(action => action.UserId);
var bcStateDescriptor = new MapStateDescriptor <string, ActionPattern>("patterns", Types.String, Types.Poco <ActionPattern>());
var bcedPatterns = patterns.Broadcast(bcStateDescriptor);
var matches = actionsByUser
.Connect(bcedPatterns)
.Process(new PatternEvaluator());
matches.Print();
env.Execute("User Actions Evaluation");
}