org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans

Class UDFFinder

java.lang.Object

org.apache.pig.impl.plan.PlanVisitor<PhysicalOperator,PhysicalPlan>

org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PhyPlanVisitor

org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.UDFFinder

public class UDFFinder
extends PhyPlanVisitor

Field Summary

Fields inherited from class org.apache.pig.impl.plan.PlanVisitor

mCurrentWalker, mPlan

Constructor Summary

Constructors

Constructor and Description
UDFFinder()
UDFFinder(PhysicalPlan plan, PlanWalker<PhysicalOperator,PhysicalPlan> walker)

Method Summary

Methods

Modifier and Type	Method and Description
List<String>	getUDFs()
void	setPlan(PhysicalPlan plan)
void	visitCast(POCast op)
void	visitComparisonFunc(POUserComparisonFunc compFunc)
void	visitSort(POSort op)
void	visitUserFunc(POUserFunc userFunc)

Methods inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PhyPlanVisitor

visit, visitAdd, visitAnd, visitBinCond, visitCollectedGroup, visitConstant, visitCounter, visitCross, visitDemux, visitDistinct, visitDivide, visitEqualTo, visitFilter, visitFRJoin, visitGlobalRearrange, visitGreaterThan, visitGTOrEqual, visitIsNull, visitLessThan, visitLimit, visitLoad, visitLocalRearrange, visitLTOrEqual, visitMapLookUp, visitMergeCoGroup, visitMergeJoin, visitMod, visitMultiply, visitNative, visitNegative, visitNot, visitNotEqualTo, visitOr, visitPackage, visitPartialAgg, visitPartitionRearrange, visitPOForEach, visitPoissonSample, visitPOOptimizedForEach, visitPreCombinerLocalRearrange, visitProject, visitRank, visitRegexp, visitReservoirSample, visitSkewedJoin, visitSplit, visitStore, visitStream, visitSubtract, visitUnion

Methods inherited from class org.apache.pig.impl.plan.PlanVisitor

getPlan, popWalker, pushWalker, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UDFFinder

public UDFFinder()

UDFFinder

public UDFFinder(PhysicalPlan plan,
         PlanWalker<PhysicalOperator,PhysicalPlan> walker)

Method Detail

getUDFs

public List<String> getUDFs()

setPlan

public void setPlan(PhysicalPlan plan)

visitSort

public void visitSort(POSort op)
               throws VisitorException

Overrides:

visitSort in class PhyPlanVisitor

Throws:

VisitorException

visitUserFunc

public void visitUserFunc(POUserFunc userFunc)
                   throws VisitorException

Overrides:

visitUserFunc in class PhyPlanVisitor

Throws:

VisitorException

visitComparisonFunc

public void visitComparisonFunc(POUserComparisonFunc compFunc)
                         throws VisitorException

Overrides:

visitComparisonFunc in class PhyPlanVisitor

Throws:

VisitorException

visitCast

public void visitCast(POCast op)

Overrides:

visitCast in class PhyPlanVisitor