Class Summary |
MROperPlan |
A Plan used to create the plan of
Map Reduce Operators which can be
converted into the Job Control
object. |
MROpPlanVisitor |
A visitor for the MROperPlan class |
MRPrinter |
A visitor mechanism printing out the logical plan. |
MRStreamHandler |
This visitor visits the MRPlan and does the following
for each MROper
- If the map plan or the reduce plan of the MROper has
a POStream in it, this marks in the MROper whether the map
has a POStream or if the reduce has a POStream. |
POPackageAnnotator |
This visitor visits the MRPlan and does the following
for each MROper
- visits the POPackage in the reduce plan and finds the corresponding
POLocalRearrange(s) (either in the map plan of the same oper OR
reduce plan of predecessor MROper). |
UDFFinder |
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