Joining Windowed Data Streams

[Philipp Goetze]

Hey community,

is there a possibility to join two windowed data streams, instead of 
joining two data streams on a window?

For example if one wants to implement Q1 of SRBench 
<http://www.w3.org/wiki/SRBench> you load the data, create one window 
definition and then one would combine filters and joins on this window. 
But how would you do these Joins in Flink Streaming?

Best Regards,
Philipp