org.apache.pig.newplan.logical.optimizer
Class LogicalPlanOptimizer

java.lang.Object
  org.apache.pig.newplan.optimizer.PlanOptimizer
      org.apache.pig.newplan.logical.optimizer.LogicalPlanOptimizer

public class LogicalPlanOptimizer
extends PlanOptimizer

Field Summary

Fields inherited from class org.apache.pig.newplan.optimizer.PlanOptimizer

listeners, maxIter, plan, ruleSets

Constructor Summary

LogicalPlanOptimizer(OperatorPlan p, int iterations, Set<String> turnOffRules)
Create a new LogicalPlanOptimizer.

Method Summary

protected List<Set<Rule>>

buildRuleSets()

Methods inherited from class org.apache.pig.newplan.optimizer.PlanOptimizer

addPlanTransformListener, optimize

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicalPlanOptimizer

public LogicalPlanOptimizer(OperatorPlan p,
                            int iterations,
                            Set<String> turnOffRules)

Create a new LogicalPlanOptimizer.

Parameters:

p - Plan to optimize.

iterations - Maximum number of optimizer iterations.

turnOffRules - Optimization rules to disable. "all" disables all non-mandatory rules. null enables all rules.

Method Detail

buildRuleSets

protected List<Set<Rule>> buildRuleSets()