org.apache.pig.newplan.logical.expression

Class ExpToPhyTranslationVisitor

java.lang.Object

org.apache.pig.newplan.PlanVisitor

org.apache.pig.newplan.logical.expression.LogicalExpressionVisitor

org.apache.pig.newplan.logical.expression.ExpToPhyTranslationVisitor

public class ExpToPhyTranslationVisitor
extends LogicalExpressionVisitor

Field Summary

Fields

Modifier and Type	Field and Description
protected LogicalRelationalOperator	currentOp
protected PhysicalPlan	currentPlan
protected Deque<PhysicalPlan>	currentPlans
protected Map<Operator,PhysicalOperator>	logToPhyMap
protected NodeIdGenerator	nodeGen
protected PigContext	pc

Fields inherited from class org.apache.pig.newplan.PlanVisitor

currentWalker, DEFAULT_SCOPE, plan

Constructor Summary

Constructors

Constructor and Description
ExpToPhyTranslationVisitor(OperatorPlan plan, LogicalRelationalOperator op, PhysicalPlan phyPlan, Map<Operator,PhysicalOperator> map)
ExpToPhyTranslationVisitor(OperatorPlan plan, PlanWalker walker, LogicalRelationalOperator op, PhysicalPlan phyPlan, Map<Operator,PhysicalOperator> map)

Method Summary

Modifier and Type	Method and Description
PhysicalPlan	getPhysicalPlan()
void	setPigContext(PigContext pc)
void	visit(AddExpression op)
void	visit(AndExpression op)
void	visit(BinCondExpression op)
void	visit(CastExpression op)
void	visit(ConstantExpression op)
void	visit(DereferenceExpression op)
void	visit(DivideExpression op)
void	visit(EqualExpression op)
void	visit(GreaterThanEqualExpression op)
void	visit(GreaterThanExpression op)
void	visit(IsNullExpression op)
void	visit(LessThanEqualExpression op)
void	visit(LessThanExpression op)
void	visit(MapLookupExpression op)
void	visit(ModExpression op)
void	visit(MultiplyExpression op)
void	visit(NegativeExpression op)
void	visit(NotEqualExpression op)
void	visit(NotExpression op)
void	visit(OrExpression op)
void	visit(ProjectExpression op)
void	visit(RegexExpression op)
void	visit(SubtractExpression op)
void	visit(UserFuncExpression op)

Methods inherited from class org.apache.pig.newplan.logical.expression.LogicalExpressionVisitor

visit

Methods inherited from class org.apache.pig.newplan.PlanVisitor

getPlan, popWalker, pushWalker, visit

Methods inherited from class java.lang.Object

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

Field Detail

currentOp

protected LogicalRelationalOperator currentOp

logToPhyMap

protected Map<Operator,PhysicalOperator> logToPhyMap

currentPlans

protected Deque<PhysicalPlan> currentPlans

currentPlan

protected PhysicalPlan currentPlan

nodeGen

protected NodeIdGenerator nodeGen

pc

protected PigContext pc

Constructor Detail

ExpToPhyTranslationVisitor

public ExpToPhyTranslationVisitor(OperatorPlan plan,
                                  LogicalRelationalOperator op,
                                  PhysicalPlan phyPlan,
                                  Map<Operator,PhysicalOperator> map)
                           throws FrontendException

Throws:

FrontendException

ExpToPhyTranslationVisitor

public ExpToPhyTranslationVisitor(OperatorPlan plan,
                                  PlanWalker walker,
                                  LogicalRelationalOperator op,
                                  PhysicalPlan phyPlan,
                                  Map<Operator,PhysicalOperator> map)
                           throws FrontendException

Throws:

FrontendException

Method Detail

setPigContext

public void setPigContext(PigContext pc)

getPhysicalPlan

public PhysicalPlan getPhysicalPlan()

visit

public void visit(AndExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(OrExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(EqualExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(NotEqualExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(GreaterThanExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(GreaterThanEqualExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(LessThanExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(LessThanEqualExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(ProjectExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(MapLookupExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(ConstantExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(CastExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(NotExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(IsNullExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(NegativeExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(AddExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(RegexExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(SubtractExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(MultiplyExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(DivideExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(ModExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(BinCondExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(UserFuncExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(DereferenceExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException