Uses of Class
org.apache.pig.impl.plan.PlanWalker

Packages that use PlanWalker

Package	Description
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans
org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans
org.apache.pig.backend.hadoop.executionengine.spark.plan
org.apache.pig.backend.hadoop.executionengine.tez.plan
org.apache.pig.backend.hadoop.executionengine.tez.util
org.apache.pig.backend.hadoop.executionengine.util
org.apache.pig.impl.plan

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer

Constructors in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer with parameters of type PlanWalker

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

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans

Constructors in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans with parameters of type PlanWalker

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

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans

Constructors in org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans with parameters of type PlanWalker

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

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.spark.plan

Constructors in org.apache.pig.backend.hadoop.executionengine.spark.plan with parameters of type PlanWalker

Constructor and Description
SparkOpPlanVisitor(SparkOperPlan plan, PlanWalker<SparkOperator,SparkOperPlan> walker)

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.tez.plan

Constructors in org.apache.pig.backend.hadoop.executionengine.tez.plan with parameters of type PlanWalker

Constructor and Description
TezOpPlanVisitor(TezOperPlan plan, PlanWalker<TezOperator,TezOperPlan> walker)
TezPlanContainerVisitor(TezPlanContainer plan, PlanWalker<TezPlanContainerNode,TezPlanContainer> walker)

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.tez.util

Constructors in org.apache.pig.backend.hadoop.executionengine.tez.util with parameters of type PlanWalker

Constructor and Description
TezUDFContextSeparator(TezOperPlan plan, PlanWalker<TezOperator,TezOperPlan> walker)

Uses of PlanWalker in org.apache.pig.backend.hadoop.executionengine.util

Constructors in org.apache.pig.backend.hadoop.executionengine.util with parameters of type PlanWalker

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

Uses of PlanWalker in org.apache.pig.impl.plan

Subclasses of PlanWalker in org.apache.pig.impl.plan

Modifier and Type	Class and Description
class	DependencyOrderWalker<O extends Operator,P extends OperatorPlan<O>> DependencyOrderWalker traverses the graph in such a way that no node is visited before all the nodes it depends on have been visited.
class	DepthFirstWalker<O extends Operator,P extends OperatorPlan<O>> DepthFirstWalker traverses a plan in a depth first manner.
class	ReverseDependencyOrderWalker<O extends Operator,P extends OperatorPlan<O>> ReverseDependencyOrderWalker traverses the graph in such a way that no node is visited before all the nodes that are its successors on have been visited.

Fields in org.apache.pig.impl.plan declared as PlanWalker

Modifier and Type	Field and Description
protected PlanWalker<O,P>	PlanVisitor.mCurrentWalker Guaranteed to always point to the walker currently being used.

Methods in org.apache.pig.impl.plan that return PlanWalker

Modifier and Type	Method and Description
PlanWalker<O,P>	ReverseDependencyOrderWalker.spawnChildWalker(P plan)
abstract PlanWalker<O,P>	PlanWalker.spawnChildWalker(P plan) Return a new instance of this same type of walker for a subplan.
PlanWalker<O,P>	DepthFirstWalker.spawnChildWalker(P plan)
PlanWalker<O,P>	DependencyOrderWalker.spawnChildWalker(P plan)

Methods in org.apache.pig.impl.plan with parameters of type PlanWalker

Modifier and Type	Method and Description
protected void	PlanVisitor.pushWalker(PlanWalker<O,P> walker) Push the current walker onto the stack of saved walkers and begin using the newly passed walker as the current walker.

Constructors in org.apache.pig.impl.plan with parameters of type PlanWalker

Constructor and Description
PlanVisitor(P plan, PlanWalker<O,P> walker)