org.apache.pig.backend.hadoop.executionengine.mapReduceLayer
Classes 
AccumulatorOptimizer
ColumnChainInfo
ColumnInfo
CombinerOptimizer
DistinctCombiner
DistinctCombiner.Combine
JobControlCompiler
JobControlCompiler.PigBagWritableComparator
JobControlCompiler.PigCharArrayWritableComparator
JobControlCompiler.PigDBAWritableComparator
JobControlCompiler.PigDoubleWritableComparator
JobControlCompiler.PigFloatWritableComparator
JobControlCompiler.PigGroupingBagWritableComparator
JobControlCompiler.PigGroupingCharArrayWritableComparator
JobControlCompiler.PigGroupingDBAWritableComparator
JobControlCompiler.PigGroupingDoubleWritableComparator
JobControlCompiler.PigGroupingFloatWritableComparator
JobControlCompiler.PigGroupingIntWritableComparator
JobControlCompiler.PigGroupingLongWritableComparator
JobControlCompiler.PigGroupingPartitionWritableComparator
JobControlCompiler.PigGroupingTupleWritableComparator
JobControlCompiler.PigIntWritableComparator
JobControlCompiler.PigLongWritableComparator
JobControlCompiler.PigSecondaryKeyGroupComparator
JobControlCompiler.PigTupleWritableComparator
JobControlCompiler.PigWritableComparator
KeyTypeDiscoveryVisitor
Launcher
MapReduceLauncher
MapReduceOper
MapReducePOStoreImpl
MergeJoinIndexer
MRCompiler
PhyPlanSetter
PigBytesRawComparator
PigCombiner
PigCombiner.Combine
PigDoubleRawComparator
PigFileInputFormat
PigFloatRawComparator
PigHadoopLogger
PigInputFormat
PigIntRawComparator
PigLongRawComparator
PigMapBase
PigMapOnly
PigMapOnly.Map
PigMapReduce
PigMapReduce.Map
PigMapReduce.MapWithComparator
PigMapReduce.MapWithPartitionIndex
PigMapReduce.Reduce
PigMapReduce.ReduceWithComparator
PigOutputCommitter
PigOutputFormat
PigOutputFormat.PigRecordWriter
PigRecordReader
PigSecondaryKeyComparator
PigSequenceFileInputFormat
PigSplit
PigTextInputFormat
PigTextOutputFormat
PigTextOutputFormat.PigLineRecordWriter
PigTextRawComparator
PigTupleRawComparator
ProgressableReporter
SampleOptimizer
SecondaryKeyOptimizer
SortKeyInfo
UDFFinishVisitor
Exceptions 
JobCreationException
MRCompilerException