org.apache.pig.newplan.logical.rules

Class MapKeysPruneHelper.FullMapCollector

java.lang.Object

org.apache.pig.newplan.PlanVisitor

org.apache.pig.newplan.logical.relational.LogicalRelationalNodesVisitor

org.apache.pig.newplan.logical.optimizer.AllExpressionVisitor

org.apache.pig.newplan.logical.rules.MapKeysPruneHelper.FullMapCollector

Enclosing class:

MapKeysPruneHelper

public static class MapKeysPruneHelper.FullMapCollector
extends AllExpressionVisitor

Field Summary

Fields inherited from class org.apache.pig.newplan.logical.optimizer.AllExpressionVisitor

currentOp

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

currentWalker, DEFAULT_SCOPE, plan

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MapKeysPruneHelper.FullMapCollector(OperatorPlan plan, java.util.Set<java.lang.Long> fullMapUids)

Method Summary

Methods

Modifier and Type	Method and Description
protected LogicalExpressionVisitor	getVisitor(LogicalExpressionPlan expr) Get a new instance of the expression visitor to apply to a given expression.
void	visit(LOCogroup cogroup)
void	visit(LOSplitOutput splitOutput)
void	visit(LOStore store)
void	visit(LOUnion union)

Methods inherited from class org.apache.pig.newplan.logical.optimizer.AllExpressionVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class org.apache.pig.newplan.logical.relational.LogicalRelationalNodesVisitor

visit, visit, visit, visit, visit, 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

MapKeysPruneHelper.FullMapCollector

protected MapKeysPruneHelper.FullMapCollector(OperatorPlan plan,
                                   java.util.Set<java.lang.Long> fullMapUids)
                                       throws FrontendException

Throws:

FrontendException

Method Detail

visit

public void visit(LOStore store)
           throws FrontendException

Overrides:

visit in class LogicalRelationalNodesVisitor

Throws:

FrontendException

visit

public void visit(LOUnion union)
           throws FrontendException

Overrides:

visit in class LogicalRelationalNodesVisitor

Throws:

FrontendException

visit

public void visit(LOCogroup cogroup)
           throws FrontendException

Overrides:

visit in class AllExpressionVisitor

Throws:

FrontendException

visit

public void visit(LOSplitOutput splitOutput)
           throws FrontendException

Overrides:

visit in class AllExpressionVisitor

Throws:

FrontendException

getVisitor

protected LogicalExpressionVisitor getVisitor(LogicalExpressionPlan expr)
                                       throws FrontendException

Description copied from class: AllExpressionVisitor

Get a new instance of the expression visitor to apply to a given expression.

Specified by:

getVisitor in class AllExpressionVisitor

Parameters:

expr - LogicalExpressionPlan that will be visited

Returns:

a new LogicalExpressionVisitor for that expression

Throws:

FrontendException