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Packages that use MROpPlanVisitor | |
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org.apache.pig.backend.hadoop.executionengine.mapReduceLayer | |
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans |
Uses of MROpPlanVisitor in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer |
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Subclasses of MROpPlanVisitor in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer | |
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class |
AccumulatorOptimizer
A visitor to optimize plans that determines if a reduce plan can run in accumulative mode. |
class |
CombinerOptimizer
Optimize map reduce plans to use the combiner where possible. |
class |
KeyTypeDiscoveryVisitor
A visitor to figure out the type of the key for the map plan this is needed when the key is null to create an appropriate NullableXXXWritable object |
class |
LimitAdjuster
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class |
SampleOptimizer
A visitor to optimize plans that have a sample job that immediately follows a load/store only MR job. |
class |
SecondaryKeyOptimizer
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Methods in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer with parameters of type MROpPlanVisitor | |
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void |
NativeMapReduceOper.visit(MROpPlanVisitor v)
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void |
MapReduceOper.visit(MROpPlanVisitor v)
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Uses of MROpPlanVisitor in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans |
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Subclasses of MROpPlanVisitor in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans | |
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class |
EndOfAllInputSetter
This visitor visits the MRPlan and does the following for each MROper: If the map plan or the reduce plan of the MROper has an end of all input flag present in it, this marks in the MROper whether the map has an end of all input flag set or if the reduce has an end of all input flag set. |
class |
MRPrinter
A visitor mechanism printing out the logical plan. |
class |
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). |
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