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Package org.apache.pig.impl.plan

Removed Classes and Interfaces
DependencyOrderWalkerWOSeenChk DependencyOrderWalker traverses the graph in such a way that no node is visited before all the nodes it depends on have been visited.
PlanPrinter A visitor mechanism printing out the logical plan.
PlanValidationExecutor This is an abstract of classes for plan validation executor
PlanValidator Master of all plan validation classes.
 

Changed Classes
OperatorPlan A generic graphing class for use by LogicalPlan PhysicalPlan etc.
PlanValidationException  
VisitorException