org.apache.pig.pen

Class EquivalenceClasses

java.lang.Object

org.apache.pig.pen.EquivalenceClasses

public class EquivalenceClasses
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
EquivalenceClasses()

Method Summary

Modifier and Type	Method and Description
static java.util.Map<LogicalRelationalOperator,java.util.Collection<IdentityHashSet<Tuple>>>	getLoToEqClassMap(PhysicalPlan plan, LogicalPlan lp, java.util.Map<Operator,PhysicalOperator> logToPhyMap, java.util.Map<Operator,DataBag> logToDataMap, java.util.Map<LOForEach,java.util.Map<LogicalRelationalOperator,PhysicalOperator>> forEachInnerLogToPhyMap, java.util.HashMap<PhysicalOperator,java.util.Collection<IdentityHashSet<Tuple>>> poToEqclassesMap)

Methods inherited from class java.lang.Object

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

Constructor Detail

EquivalenceClasses

public EquivalenceClasses()

Method Detail

getLoToEqClassMap

public static java.util.Map<LogicalRelationalOperator,java.util.Collection<IdentityHashSet<Tuple>>> getLoToEqClassMap(PhysicalPlan plan,
                                                                                                                      LogicalPlan lp,
                                                                                                                      java.util.Map<Operator,PhysicalOperator> logToPhyMap,
                                                                                                                      java.util.Map<Operator,DataBag> logToDataMap,
                                                                                                                      java.util.Map<LOForEach,java.util.Map<LogicalRelationalOperator,PhysicalOperator>> forEachInnerLogToPhyMap,
                                                                                                                      java.util.HashMap<PhysicalOperator,java.util.Collection<IdentityHashSet<Tuple>>> poToEqclassesMap)