| Package | Description | 
|---|---|
| org.apache.orc | |
| org.apache.orc.impl | |
| org.apache.orc.impl.reader | |
| org.apache.orc.impl.reader.tree | |
| org.apache.orc.impl.writer | 
| Class and Description | 
|---|
| BufferChunkList Builds a list of buffer chunks | 
| InStream.StreamOptions | 
| OrcTail | 
| StreamName The name of a stream within a stripe. | 
| Class and Description | 
|---|
| AcidStats Statistics about the ACID operations in an ORC file | 
| AircompressorCodec | 
| BitFieldReader | 
| BufferChunk The sections of stripe that we have read. | 
| ColumnStatisticsImpl | 
| ConvertTreeReaderFactory.ConvertTreeReader Override methods like checkEncoding to pass-thru to the convert TreeReader. | 
| ConvertTreeReaderFactory.StringGroupFromAnyIntegerTreeReader | 
| DataReaderProperties | 
| DataReaderProperties.Builder | 
| Dictionary Interface to define the dictionary used for encoding value in columns
 of specific types like string, char, varchar, etc. | 
| Dictionary.IMPL | 
| Dictionary.Visitor The interface for visitors. | 
| Dictionary.VisitorContext The information about each node. | 
| DirectDecompressionCodec | 
| DynamicByteArray A class that is a growable array of bytes. | 
| DynamicIntArray Dynamic int array that uses primitive types and chunks to avoid copying
 large number of integers when it resizes. | 
| InStream | 
| InStream.StreamOptions | 
| InStream.UncompressedStream Implements a stream over an uncompressed stream. | 
| IntegerReader Interface for reading integers. | 
| IntegerWriter Interface for writing integers. | 
| MaskDescriptionImpl | 
| MemoryManagerImpl Implements a memory manager that keeps a global context of how many ORC
 writers there are and manages the memory between them. | 
| OrcIndex | 
| OrcTail | 
| ParserUtils.StringPosition | 
| ParserUtils.TypeVisitor | 
| PositionedOutputStream | 
| PositionProvider An interface used for seeking to a row index. | 
| PositionRecorder An interface for recording positions in a stream. | 
| ReaderImpl | 
| RunLengthByteReader A reader that reads a sequence of bytes. | 
| RunLengthIntegerReaderV2 A reader that reads a sequence of light weight compressed integers. | 
| RunLengthIntegerWriterV2.EncodingType | 
| SchemaEvolution Infer and track the evolution between the schema as stored in the file and
 the schema that has been requested by the reader. | 
| SerializationUtils.FixedBitSizes | 
| StreamName The name of a stream within a stripe. | 
| StreamName.Area | 
| TreeReaderFactory Factory for creating ORC tree readers. | 
| TreeReaderFactory.Context | 
| TreeReaderFactory.ReaderContext | 
| TreeReaderFactory.StringTreeReader A tree reader that will read string columns. | 
| TreeReaderFactory.TreeReader | 
| WriterInternal The ORC internal API to the writer. | 
| Class and Description | 
|---|
| BufferChunk The sections of stripe that we have read. | 
| BufferChunkList Builds a list of buffer chunks | 
| InStream | 
| InStream.StreamOptions | 
| MaskDescriptionImpl | 
| OrcIndex | 
| ReaderImpl | 
| StreamName The name of a stream within a stripe. | 
| Class and Description | 
|---|
| PositionProvider An interface used for seeking to a row index. | 
| TreeReaderFactory.Context | 
| Class and Description | 
|---|
| BitFieldWriter | 
| ColumnStatisticsImpl | 
| Dictionary Interface to define the dictionary used for encoding value in columns
 of specific types like string, char, varchar, etc. | 
| DynamicIntArray Dynamic int array that uses primitive types and chunks to avoid copying
 large number of integers when it resizes. | 
| IntegerWriter Interface for writing integers. | 
| OutStream The output stream for writing to ORC files. | 
| PositionedOutputStream | 
| StreamName The name of a stream within a stripe. | 
| WriterImpl An ORC file writer. | 
| WriterInternal The ORC internal API to the writer. | 
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