org.apache.pig.pen
Class LineageTrimmingVisitor

java.lang.Object
  extended by org.apache.pig.impl.plan.PlanVisitor<LogicalOperator,LogicalPlan>
      extended by org.apache.pig.impl.logicalLayer.LOVisitor
          extended by org.apache.pig.pen.LineageTrimmingVisitor

public class LineageTrimmingVisitor
extends LOVisitor


Field Summary
 
Fields inherited from class org.apache.pig.impl.plan.PlanVisitor
mCurrentWalker, mPlan
 
Constructor Summary
LineageTrimmingVisitor(LogicalPlan plan, Map<LOLoad,DataBag> baseData, Map<LogicalOperator,PhysicalOperator> LogToPhyMap, PhysicalPlan physPlan, PigContext pc)
           
 
Method Summary
 void init()
           
protected  void visit(LOCogroup cg)
           
protected  void visit(LOCross cs)
           
protected  void visit(LODistinct dt)
           
protected  void visit(LOFilter filter)
           
protected  void visit(LOForEach forEach)
           
protected  void visit(LOLimit limOp)
           
protected  void visit(LOLoad load)
           
protected  void visit(LOSort s)
           
protected  void visit(LOSplit split)
           
protected  void visit(LOUnion u)
           
 
Methods inherited from class org.apache.pig.impl.logicalLayer.LOVisitor
visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit
 
Methods inherited from class org.apache.pig.impl.plan.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

LineageTrimmingVisitor

public LineageTrimmingVisitor(LogicalPlan plan,
                              Map<LOLoad,DataBag> baseData,
                              Map<LogicalOperator,PhysicalOperator> LogToPhyMap,
                              PhysicalPlan physPlan,
                              PigContext pc)
Method Detail

init

public void init()

visit

protected void visit(LOCogroup cg)
              throws VisitorException
Overrides:
visit in class LOVisitor
Parameters:
cg - the logical cogroup operator that has to be visited
Throws:
VisitorException

visit

protected void visit(LOCross cs)
              throws VisitorException
Overrides:
visit in class LOVisitor
Throws:
VisitorException

visit

protected void visit(LODistinct dt)
              throws VisitorException
Overrides:
visit in class LOVisitor
Throws:
VisitorException

visit

protected void visit(LOFilter filter)
              throws VisitorException
Overrides:
visit in class LOVisitor
Parameters:
filter - the logical filter operator that has to be visited
Throws:
VisitorException

visit

protected void visit(LOForEach forEach)
              throws VisitorException
Overrides:
visit in class LOVisitor
Parameters:
forEach - the logical foreach operator that has to be visited
Throws:
VisitorException

visit

protected void visit(LOLimit limOp)
              throws VisitorException
Overrides:
visit in class LOVisitor
Throws:
VisitorException

visit

protected void visit(LOLoad load)
              throws VisitorException
Overrides:
visit in class LOVisitor
Throws:
VisitorException

visit

protected void visit(LOSort s)
              throws VisitorException
Overrides:
visit in class LOVisitor
Parameters:
s - the logical sort operator that has to be visited
Throws:
VisitorException

visit

protected void visit(LOSplit split)
              throws VisitorException
Overrides:
visit in class LOVisitor
Parameters:
split - the logical split operator that has to be visited
Throws:
VisitorException

visit

protected void visit(LOUnion u)
              throws VisitorException
Overrides:
visit in class LOVisitor
Throws:
VisitorException


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