org.apache.pig.impl.util
Class LineageTracer

java.lang.Object
  org.apache.pig.impl.util.LineageTracer

public class LineageTracer
extends Object

Constructor Summary

LineageTracer()

Method Summary

IdentityHashMap<Tuple,Integer>	getCounts()
Collection<Tuple>	getMembers(Tuple t)
IdentityHashMap<Tuple,Collection<Tuple>>	getMembershipMap()
Tuple	getRepresentative(Tuple t)
IdentityHashMap<Tuple,Integer>	getWeightedCounts(IdentityHashSet<Tuple> specialTuples, int multiplier)
void	insert(Tuple t)
void	union(Tuple t1, Tuple t2)

Methods inherited from class java.lang.Object

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

Constructor Detail

LineageTracer

public LineageTracer()

Method Detail

insert

public void insert(Tuple t)

union

public void union(Tuple t1,
                  Tuple t2)

getRepresentative

public Tuple getRepresentative(Tuple t)

getCounts

public IdentityHashMap<Tuple,Integer> getCounts()

getWeightedCounts

public IdentityHashMap<Tuple,Integer> getWeightedCounts(IdentityHashSet<Tuple> specialTuples,
                                                        int multiplier)

getMembers

public Collection<Tuple> getMembers(Tuple t)

getMembershipMap

public IdentityHashMap<Tuple,Collection<Tuple>> getMembershipMap()