@EverythingIsNonnullByDefault

Package org.apache.druid.segment.data

Interface Summary

Interface	Description
BitmapSerdeFactory
BitmapValues	Doesn't extend IntIterable to avoid accidental for-each iteration with boxing.
CloseableIndexed<T>
ColumnarDoubles	Resource that provides random access to a packed array of primitive doubles.
ColumnarDoublesSerializer	Serializer that produces ColumnarDoubles.
ColumnarFloats	Resource that provides random access to a packed array of primitive floats.
ColumnarFloatsSerializer	Serializer that produces ColumnarFloats.
ColumnarInts	Resource that provides random access to a packed array of primitive int values.
ColumnarIntsSerializer	Serializer that produces either ColumnarInts or ColumnarMultiInts.
ColumnarLongs	Resource that provides random access to a packed array of primitive longs.
ColumnarLongsSerializer	Serializer that produces ColumnarLongs.
ColumnarMultiInts	Resource that provides random access to a packed array of short arrays of ints (IndexedInts).
CompressionFactory.LongEncodingReader
CompressionFactory.LongEncodingWriter	This writer output encoded values to the given ByteBuffer or OutputStream.
CompressionStrategy.Decompressor
DictionaryWriter<T>
Indexed<T>	Indexed is a fixed-size, immutable, indexed set of values which allows locating a specific index via an exact match, the semantics of which are defined by the implementation.
IndexedInts	Get a int an index (array or list lookup abstraction without boxing).
ObjectStrategy<T>
ReadableOffset	A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.
VSizeLongSerde.LongDeserializer	Unpack bitpacked long values from an underlying contiguous memory block
VSizeLongSerde.LongSerializer
WritableSupplier<T>

Class Summary

Class	Description
ArrayBasedIndexedInts
BitmapSerde
BitmapSerde.DefaultBitmapSerdeFactory
BitmapSerde.LegacyBitmapSerdeFactory
BlockLayoutColumnarDoublesSerializer	Serializer that produces BlockLayoutColumnarDoublesSupplier.BlockLayoutColumnarDoubles.
BlockLayoutColumnarDoublesSupplier
BlockLayoutColumnarFloatsSerializer	Serializer that produces BlockLayoutColumnarFloatsSupplier.BlockLayoutColumnarFloats.
BlockLayoutColumnarFloatsSupplier
BlockLayoutColumnarLongsSerializer	Serializer that produces BlockLayoutColumnarLongsSupplier.BlockLayoutColumnarLongs.
BlockLayoutColumnarLongsSupplier
ByteBufferWriter<T>
ColumnarMultiIntsSerializer	Serializer that produces ColumnarMultiInts.
CompressedBlockReader	Reader for a virtual contiguous address range backed by compressed blocks of data.
CompressedBlockSerializer
CompressedColumnarDoublesSuppliers
CompressedColumnarFloatsSupplier
CompressedColumnarIntsSerializer	Streams array of integers out in the binary format described by CompressedColumnarIntsSupplier
CompressedColumnarIntsSupplier
CompressedColumnarLongsSupplier
CompressedLongsReader
CompressedLongsSerializer
CompressedVariableSizedBlobColumn
CompressedVariableSizedBlobColumnSerializer
CompressedVariableSizedBlobColumnSupplier
CompressedVSizeColumnarIntsSerializer	Streams array of integers out in the binary format described by CompressedVSizeColumnarIntsSupplier
CompressedVSizeColumnarIntsSupplier
CompressedVSizeColumnarMultiIntsSupplier	Format - byte 1 - version offsets - ColumnarInts of length num of rows + 1 representing offsets of starting index of first element of each row in values index and last element equal to length of values column, the last element in the offsets represents the total length of values column.
CompressedVSizeColumnarMultiIntsSupplier.CompressedVSizeColumnarMultiInts
CompressionFactory	Compression of metrics is done by using a combination of CompressionStrategy and Encoding(such as CompressionFactory.LongEncodingStrategy for type Long).
CompressionStrategy.Compressor
CompressionStrategy.LZ4Compressor
CompressionStrategy.LZ4Decompressor
CompressionStrategy.LZFCompressor
CompressionStrategy.LZFDecompressor
CompressionStrategy.UncompressedCompressor
CompressionStrategy.UncompressedDecompressor
CompressionStrategy.ZstdCompressor
CompressionStrategy.ZstdDecompressor
ConciseBitmapSerdeFactory
DecompressingByteBufferObjectStrategy
DeltaLongEncodingReader
DeltaLongEncodingWriter
EncodedStringDictionaryWriter
EntireLayoutColumnarDoublesSerializer	Serializer that produces EntireLayoutColumnarDoublesSupplier.EntireLayoutColumnarDoubles.
EntireLayoutColumnarDoublesSupplier
EntireLayoutColumnarFloatsSerializer	Serializer that produces EntireLayoutColumnarFloatsSupplier.EntireLayoutColumnarFloats.
EntireLayoutColumnarFloatsSupplier
EntireLayoutColumnarLongsSerializer	Serializer that produces EntireLayoutColumnarLongsSupplier.EntireLayoutColumnarLongs.
EntireLayoutColumnarLongsSupplier
FixedIndexed<T>	Fixed width value implementation of Indexed, stored simply as a header that contains the number of values, and then the values stored sequentially.
FixedIndexedIntWriter	Specialized version of FixedIndexedWriter for writing ints, with no support for null values, and no verification that data is actually sorted, it just trusts you and takes your word for it
FixedIndexedWriter<T>	Writer for a FixedIndexed
FrontCodedIndexed	Indexed specialized for storing variable-width binary values (such as utf8 encoded strings), which must be sorted and unique, using 'front coding'.
FrontCodedIndexed.FrontCodedV0
FrontCodedIndexed.FrontCodedV1
FrontCodedIndexedWriter	DictionaryWriter for a FrontCodedIndexed, written to a SegmentWriteOutMedium.
FrontCodedIntArrayIndexed	Indexed specialized for storing int arrays, which must be sorted and unique, using 'front coding'.
FrontCodedIntArrayIndexedWriter
GenericIndexed<T>	A generic, flat storage mechanism.
GenericIndexedWriter<T>	Streams arrays of objects out in the binary format described by GenericIndexed The version EncodedStringDictionaryWriter.VERSION is reserved and must never be specified as the GenericIndexed version byte, else it will interfere with string column deserialization.
ImmutableBitmapValues
ImmutableRTreeObjectStrategy
IndexedIterable<T>
IntermediateColumnarLongsSerializer	Serializer that chooses optimal ColumnarLongs format dymamically, based on the values being written.
ListIndexed<T>
LongsLongEncodingReader
LongsLongEncodingWriter
Offset	The "mutable" version of a ReadableOffset.
RangeIndexedInts	Reusable IndexedInts that returns sequences [0, 1, ..., N].
RoaringBitmapSerdeFactory
SafeWritableBase	Base class for making a regular ByteBuffer look like a Memory or Buffer.
SafeWritableBuffer	Safety first! Don't trust something whose contents you locations to read and write stuff to, but need a Buffer or WritableBuffer? use this!
SafeWritableMemory	Safety first! Don't trust something whose contents you locations to read and write stuff to, but need a Memory or WritableMemory? use this!
SingleIndexedInt	Reusable IndexedInts that represents a sequence of a solo value [X].
SingleValueColumnarIntsSerializer	Serializer that produces ColumnarInts.
SliceIndexedInts	Reusable IndexedInts, that could represent a sub-sequence ("slice") in a larger IndexedInts object.
TableLongEncodingReader
TableLongEncodingWriter
V3CompressedVSizeColumnarMultiIntsSerializer	Streams array of integers out in the binary format described by V3CompressedVSizeColumnarMultiIntsSupplier
V3CompressedVSizeColumnarMultiIntsSupplier	The format is mostly the same with CompressedVSizeColumnarMultiIntsSupplier (which has version 0x2, so we call it V2), the only difference is V3's offsets is not VSize encoded, it's just compressed.
VByte
VSizeColumnarInts
VSizeColumnarIntsSerializer	Streams integers out in the binary format described by VSizeColumnarInts
VSizeColumnarMultiInts
VSizeColumnarMultiIntsSerializer	Streams arrays of objects out in the binary format described by VSizeColumnarMultiInts.
VSizeLongSerde	Currently only support big endian
ZeroIndexedInts	An IndexedInts that always returns a row containing a single zero.

Enum Summary

Enum	Description
CompressionFactory.LongEncodingFormat
CompressionFactory.LongEncodingStrategy	The compression of decompression of encodings are separated into different enums.
CompressionStrategy	Compression strategy is used to compress block of bytes without knowledge of what data the bytes represents.

Exception Summary

Exception	Description
ColumnCapacityExceededException