org.apache.pig.pen
Class DerivedData

java.lang.Object
  extended by org.apache.pig.pen.DerivedData

public class DerivedData
extends Object


Constructor Summary
DerivedData()
           
 
Method Summary
static Collection<IdentityHashSet<Tuple>> GetEquivalenceClasses(LogicalOperator op, Map<LogicalOperator,DataBag> derivedData)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DerivedData

public DerivedData()
Method Detail

GetEquivalenceClasses

public static Collection<IdentityHashSet<Tuple>> GetEquivalenceClasses(LogicalOperator op,
                                                                       Map<LogicalOperator,DataBag> derivedData)
                                                                throws IOException
Throws:
IOException


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