org.apache.pig.impl.io
Classes 
BinStorageInputFormat
BinStorageOutputFormat
BinStorageRecordReader
BinStorageRecordWriter
BufferedPositionedInputStream
FileLocalizer
FileLocalizer.DataStorageInputStreamIterator
FileLocalizer.FetchFileRet
FileSpec
InterRecordReader
InterRecordWriter
InterStorage
InterStorage.InterInputFormat
InterStorage.InterOutputFormat
NullableBag
NullableBooleanWritable
NullableBytesWritable
NullableDoubleWritable
NullableFloatWritable
NullableIntWritable
NullableLongWritable
NullablePartitionWritable
NullableText
NullableTuple
NullableUnknownWritable
PigFile
PigNullableWritable
ReadToEndLoader
TFileRecordReader
TFileRecordWriter
TFileStorage
TFileStorage.TFileInputFormat
TFileStorage.TFileOutputFormat