Uses of Package
org.apache.druid.segment.data

Packages that use org.apache.druid.segment.data

Package	Description
org.apache.druid.frame.segment
org.apache.druid.frame.segment.columnar
org.apache.druid.frame.segment.row
org.apache.druid.query.aggregation
org.apache.druid.query.aggregation.hyperloglog
org.apache.druid.query.groupby.epinephelinae
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.data
org.apache.druid.segment.historical
org.apache.druid.segment.incremental
org.apache.druid.segment.join
org.apache.druid.segment.join.table
org.apache.druid.segment.nested
org.apache.druid.segment.selector.settable
org.apache.druid.segment.serde
org.apache.druid.segment.serde.cell
org.apache.druid.segment.vector
org.apache.druid.segment.virtual

Classes in org.apache.druid.segment.data used by org.apache.druid.frame.segment

Class and Description
Indexed 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.
Offset The "mutable" version of a ReadableOffset.
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.

Classes in org.apache.druid.segment.data used by org.apache.druid.frame.segment.columnar

Class and Description
Indexed 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.

Classes in org.apache.druid.segment.data used by org.apache.druid.frame.segment.row

Class and Description
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.

Classes in org.apache.druid.segment.data used by org.apache.druid.query.aggregation

Class and Description
ObjectStrategy

Classes in org.apache.druid.segment.data used by org.apache.druid.query.aggregation.hyperloglog

Class and Description
ObjectStrategy

Classes in org.apache.druid.segment.data used by org.apache.druid.query.groupby.epinephelinae

Class and Description
IndexedInts Get a int an index (array or list lookup abstraction without boxing).

Classes in org.apache.druid.segment.data used by org.apache.druid.segment

Class and Description
BitmapSerdeFactory
BitmapValues Doesn't extend IntIterable to avoid accidental for-each iteration with boxing.
CloseableIndexed
ColumnarIntsSerializer Serializer that produces either ColumnarInts or ColumnarMultiInts.
ComparableList
ComparableStringArray
CompressedColumnarLongsSupplier
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.
DictionaryWriter
GenericIndexed A generic, flat storage mechanism.
GenericIndexedWriter 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.
Indexed 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
Offset The "mutable" version of a ReadableOffset.
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.
VSizeColumnarMultiInts

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.column

Class and Description
CachingIndexed
ColumnarDoubles Resource that provides random access to a packed array of primitive doubles.
ColumnarFloats Resource that provides random access to a packed array of primitive floats.
ColumnarInts Resource that provides random access to a packed array of primitive int values.
ColumnarLongs Resource that provides random access to a packed array of primitive longs.
ColumnarMultiInts Resource that provides random access to a packed array of short arrays of ints (IndexedInts).
DictionaryWriter
FrontCodedIndexed Indexed specialized for storing variable-width binary values (such as utf8 encoded strings), which must be sorted and unique, using 'front coding'.
GenericIndexed A generic, flat storage mechanism.
Indexed 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
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.data

Class and Description
BitmapSerdeFactory
BitmapValues Doesn't extend IntIterable to avoid accidental for-each iteration with boxing.
CloseableIndexed
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).
ColumnarMultiIntsSerializer Serializer that produces ColumnarMultiInts.
ComparableIntArray
ComparableList
ComparableStringArray
CompressedBlockReader Reader for a virtual contiguous address range backed by compressed blocks of data.
CompressedColumnarFloatsSupplier
CompressedColumnarIntsSupplier
CompressedColumnarLongsSupplier
CompressedLongsReader
CompressedVariableSizedBlobColumn
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.
CompressionFactory.LongEncodingFormat
CompressionFactory.LongEncodingReader
CompressionFactory.LongEncodingStrategy The compression of decompression of encodings are separated into different enums.
CompressionFactory.LongEncodingWriter This writer output encoded values to the given ByteBuffer or OutputStream.
CompressionStrategy Compression strategy is used to compress block of bytes without knowledge of what data the bytes represents.
CompressionStrategy.Compressor
CompressionStrategy.Decompressor
ConciseBitmapSerdeFactory
DictionaryWriter
FixedIndexed Fixed width value implementation of Indexed, stored simply as a header that contains the number of values, and then the values stored sequentially.
FrontCodedIndexed Indexed specialized for storing variable-width binary values (such as utf8 encoded strings), which must be sorted and unique, using 'front coding'.
GenericIndexed A generic, flat storage mechanism.
GenericIndexed.BufferIndexed Single-threaded view.
GenericIndexedWriter 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.
Indexed 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).
IndexedIterable
ObjectStrategy
Offset The "mutable" version of a ReadableOffset.
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.
RoaringBitmapSerdeFactory
SafeWritableBase Base class for making a regular ByteBuffer look like a Memory or Buffer.
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!
SingleValueColumnarIntsSerializer Serializer that produces ColumnarInts.
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.
VSizeColumnarInts
VSizeColumnarMultiInts
VSizeLongSerde.LongDeserializer Unpack bitpacked long values from an underlying contiguous memory block
VSizeLongSerde.LongSerializer
WritableSupplier
ZeroIndexedInts An IndexedInts that always returns a row containing a single zero.

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.historical

Class and Description
IndexedInts Get a int an index (array or list lookup abstraction without boxing).
Offset The "mutable" version of a ReadableOffset.

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.incremental

Class and Description
BitmapValues Doesn't extend IntIterable to avoid accidental for-each iteration with boxing.
CloseableIndexed
Indexed 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.

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.join

Class and Description
Indexed 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).

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.join.table

Class and Description
IndexedInts Get a int an index (array or list lookup abstraction without boxing).
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.nested

Class and Description
BitmapSerdeFactory
ColumnarDoubles Resource that provides random access to a packed array of primitive doubles.
ColumnarInts Resource that provides random access to a packed array of primitive int values.
ColumnarLongs Resource that provides random access to a packed array of primitive longs.
CompressedVariableSizedBlobColumnSupplier
FixedIndexed 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
GenericIndexed A generic, flat storage mechanism.
Indexed 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
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.
SingleValueColumnarIntsSerializer Serializer that produces ColumnarInts.

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.selector.settable

Class and Description
IndexedInts Get a int an index (array or list lookup abstraction without boxing).

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.serde

Class and Description
BitmapSerdeFactory
ByteBufferWriter
ColumnarInts Resource that provides random access to a packed array of primitive int values.
ColumnarIntsSerializer Serializer that produces either ColumnarInts or ColumnarMultiInts.
ColumnarMultiInts Resource that provides random access to a packed array of short arrays of ints (IndexedInts).
CompressedColumnarFloatsSupplier
CompressedColumnarLongsSupplier
DictionaryWriter
FrontCodedIndexed Indexed specialized for storing variable-width binary values (such as utf8 encoded strings), which must be sorted and unique, using 'front coding'.
GenericIndexed A generic, flat storage mechanism.
GenericIndexedWriter 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.
ObjectStrategy

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.serde.cell

Class and Description
CompressionStrategy Compression strategy is used to compress block of bytes without knowledge of what data the bytes represents.
CompressionStrategy.Compressor
CompressionStrategy.Decompressor

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.vector

Class and Description
IndexedInts Get a int an index (array or list lookup abstraction without boxing).

Classes in org.apache.druid.segment.data used by org.apache.druid.segment.virtual

Class and Description
IndexedInts Get a int an index (array or list lookup abstraction without boxing).
ReadableOffset A ReadableOffset is an object that provides an integer offset, ostensibly as an index into an array.