org.apache.pig.newplan.logical.expression

Class AllSameExpressionVisitor

java.lang.Object

org.apache.pig.newplan.PlanVisitor

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

org.apache.pig.newplan.logical.expression.AllSameExpressionVisitor

Direct Known Subclasses:

ConstantCalculator.ConstantCalculatorTransformer.ConstantCalculatorExpressionVisitor

public abstract class AllSameExpressionVisitor
extends LogicalExpressionVisitor

Field Summary

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

currentWalker, DEFAULT_SCOPE, plan

Constructor Summary

Constructors

Constructor and Description
AllSameExpressionVisitor(OperatorPlan plan, PlanWalker walker)

Method Summary

Modifier and Type	Method and Description
protected abstract void	execute(LogicalExpression op) Method to call on every node in the logical expression plan.
void	visit(AddExpression op)
void	visit(AndExpression andExpr)
void	visit(BinCondExpression op)
void	visit(CastExpression cast)
void	visit(ConstantExpression constant)
void	visit(DereferenceExpression derefenceExpression)
void	visit(DivideExpression op)
void	visit(EqualExpression equal)
void	visit(GreaterThanEqualExpression op)
void	visit(GreaterThanExpression greaterThanExpression)
void	visit(IsNullExpression op)
void	visit(LessThanEqualExpression op)
void	visit(LessThanExpression lessThanExpression)
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 exp)
void	visit(ProjectExpression project)
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

Constructor Detail

AllSameExpressionVisitor

public AllSameExpressionVisitor(OperatorPlan plan,
                                PlanWalker walker)
                         throws FrontendException

Throws:

FrontendException

Method Detail

execute

protected abstract void execute(LogicalExpression op)
                         throws FrontendException

Method to call on every node in the logical expression plan.

Parameters:

op - Node that is currently being visited.

Throws:

FrontendException

visit

public void visit(AndExpression andExpr)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(OrExpression exp)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(EqualExpression equal)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(ProjectExpression project)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(ConstantExpression constant)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(CastExpression cast)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(GreaterThanExpression greaterThanExpression)
           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 lessThanExpression)
           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(NotEqualExpression 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(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(ModExpression 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(MapLookupExpression 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 derefenceExpression)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException

visit

public void visit(RegexExpression op)
           throws FrontendException

Overrides:

visit in class LogicalExpressionVisitor

Throws:

FrontendException