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

Class PlanPrinter<O extends Operator,P extends OperatorPlan<O>>

java.lang.Object

org.apache.pig.impl.plan.PlanVisitor<O,P>

org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PlanPrinter<O,P>

public class PlanPrinter<O extends Operator,P extends OperatorPlan<O>>
extends PlanVisitor<O,P>

Field Summary

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

mCurrentWalker, mPlan

Constructor Summary

Constructors

Constructor and Description
PlanPrinter(P plan)
PlanPrinter(P plan, PrintStream stream)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	breadthFirst()
protected String	depthFirstPP()
void	print(OutputStream printer)
void	setVerbose(boolean verbose)
void	visit() Entry point for visiting the plan.
void	visitFilter(POFilter op)
void	visitGlobalRearrange(POGlobalRearrange op)
void	visitLoad(POLoad op)
void	visitLocalRearrange(POLocalRearrange op)
void	visitPackage(POPackage op)
void	visitStartMap(POUnion op)
void	visitStore(POStore op)

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

getPlan, popWalker, pushWalker

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanPrinter

public PlanPrinter(P plan)

PlanPrinter

public PlanPrinter(P plan,
           PrintStream stream)

Method Detail

setVerbose

public void setVerbose(boolean verbose)

visit

public void visit()
           throws VisitorException

Description copied from class: PlanVisitor

Entry point for visiting the plan.

Overrides:

visit in class PlanVisitor<O extends Operator,P extends OperatorPlan<O>>

Throws:

VisitorException - if an error is encountered while visiting.

print

public void print(OutputStream printer)
           throws VisitorException,
                  IOException

Throws:

VisitorException

IOException

breadthFirst

protected void breadthFirst()
                     throws VisitorException

Throws:

VisitorException

depthFirstPP

protected String depthFirstPP()
                       throws VisitorException

Throws:

VisitorException

visitLoad

public void visitLoad(POLoad op)

visitStore

public void visitStore(POStore op)

visitFilter

public void visitFilter(POFilter op)

visitLocalRearrange

public void visitLocalRearrange(POLocalRearrange op)

visitGlobalRearrange

public void visitGlobalRearrange(POGlobalRearrange op)

visitPackage

public void visitPackage(POPackage op)

visitStartMap

public void visitStartMap(POUnion op)