@EverythingIsNonnullByDefault

Package io.druid.segment

Interface Summary

Interface	Description
BaseDoubleColumnValueSelector	Double value selecting polymorphic "part" of the ColumnValueSelector interface.
BaseFloatColumnValueSelector	Float value selecting polymorphic "part" of the ColumnValueSelector interface.
BaseLongColumnValueSelector	Long value selecting polymorphic "part" of the ColumnValueSelector interface.
BaseObjectColumnValueSelector<T>	Object value selecting polymorphic "part" of the ColumnValueSelector interface.
ColumnSelector
ColumnSelectorFactory	Factory class for MetricSelectors
ColumnValueSelector<T>	Base type for interfaces that manage column value selection, e.g.
Cursor
CursorFactory
DimensionHandler<EncodedType extends Comparable<EncodedType>,EncodedKeyComponentType,ActualType extends Comparable<ActualType>>	Processing related interface A DimensionHandler is an object that encapsulates indexing, column merging/building, and querying operations for a given dimension type (e.g., dict-encoded String, Long).
DimensionIndexer<EncodedType extends Comparable<EncodedType>,EncodedKeyComponentType,ActualType extends Comparable<ActualType>>	Processing related interface A DimensionIndexer is a per-dimension stateful object that encapsulates type-specific operations and data structures used during the in-memory ingestion process (i.e., work done by IncrementalIndex).
DimensionMerger<EncodedKeyComponentType>	Processing related interface A DimensionMerger is a per-dimension stateful object that encapsulates type-specific operations and data structures used during the segment merging process (i.e., work done by IndexMerger/IndexMergerV9).
DimensionMergerV9<EncodedKeyComponentType>	Processing related interface DimensionMerger subclass to be used with IndexMergerV9.
DimensionSelector
DoubleColumnSelector	This interface is convenient for implementation of "double-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseDoubleColumnValueSelector.getDouble().
FloatColumnSelector	This interface is convenient for implementation of "float-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseFloatColumnValueSelector.getFloat().
GenericColumnSerializer
IdLookup	"Mixin" for DimensionSelector.
IndexableAdapter	An adapter to an index
IndexMerger
IndexMerger.IndexSeeker
LongColumnSelector	This interface is convenient for implementation of "long-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseLongColumnValueSelector.getLong().
ObjectColumnSelector<T>	This interface is convenient for implementation of "object-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseObjectColumnValueSelector.getObject() and BaseObjectColumnValueSelector.classOfObject().
ProgressIndicator
QueryableIndex	Direct interface to memory mapped segments.
Segment
StorageAdapter
StringDimensionMergerV9.IndexSeeker
VirtualColumn	Virtual columns are "views" created over a ColumnSelectorFactory.

Class Summary

Class	Description
AbstractSegment
BaseProgressIndicator
BitmapOffset
Capabilities
Capabilities.CapabilitiesBuilder
ColumnSelectorBitmapIndexSelector
CompressedPools
ConstantColumnValueSelector<T>
ConstantDimensionSelector
DimensionHandlerUtils
DimensionSelectorUtils
DoubleColumnSerializer
DoubleDimensionHandler
DoubleDimensionIndexer
DoubleDimensionMergerV9
DoubleWrappingDimensionSelector
DruidVirtualColumnsModule
FilteredOffset
FloatColumnSerializer
FloatDimensionHandler
FloatDimensionIndexer
FloatDimensionMergerV9
FloatWrappingDimensionSelector
IncrementalIndexSegment
IndexIO
IndexIO.DefaultIndexIOHandler
IndexMerger.DictionaryMergeIterator
IndexMerger.IndexSeekerWithConversion	Get old dictId from new dictId, and only support access in order
IndexMerger.MMappedIndexRowIterable
IndexMerger.RowboatMergeFunction
IndexMergerV9
IndexSpec	IndexSpec defines segment storage format options to be used at indexing time, such as bitmap type, and column compression formats.
IntIteratorUtils
IntListUtils
LongColumnSerializer	Unsafe for concurrent use from multiple threads.
LongDimensionHandler
LongDimensionIndexer
LongDimensionMergerV9
LongWrappingDimensionSelector
MapVirtualColumn
Metadata
MetricHolder
MMappedIndex
NilColumnValueSelector	Represents "absent" column.
NoFilterOffset
NullDimensionSelector
QueryableIndexIndexableAdapter
QueryableIndexSegment
QueryableIndexStorageAdapter
QueryableIndexStorageAdapter.AscendingTimestampCheckingOffset
QueryableIndexStorageAdapter.DescendingTimestampCheckingOffset
QueryableIndexStorageAdapter.TimestampCheckingOffset
ReferenceCountingSegment	ReferenceCountingSegment allows to call ReferenceCountingSegment.close() before some other "users", which called ReferenceCountingSegment.increment(), has not called ReferenceCountingSegment.decrement() yet, and the wrapped Segment won't be actually closed until that.
Rowboat
RowboatFilteringIndexAdapter
SegmentUtils	Utility methods useful for implementing deep storage extensions.
SimpleQueryableIndex
SingleScanTimeDimSelector
StringDimensionHandler
StringDimensionIndexer
StringDimensionMergerV9
StringDimensionMergerV9.ConvertingBitmapValues
StringDimensionMergerV9.IndexSeekerWithConversion	Get old dictId from new dictId, and only support access in order
StringDimensionMergerV9.IndexSeekerWithoutConversion
VirtualColumns	Class allowing lookup and usage of virtual columns.

Enum Summary

Enum	Description
MetricHolder.MetricType

Exception Summary

Exception	Description
SegmentMissingException
SegmentValidationException