You can use a tFlowToIterate component. This will store the values of each row in the globalMap hashmap under the name "{rowname}.{columnname}". So for a tMap that is joined to a tFlowToIterate via a row called "row1", a String column called "mycol" can be accessed using the following Java....
((String)globalMap.get("row1.mycol"))
You can then use these for the lifetime of the iteration. 1 row = 1 iteration.
