Uses of Interface
org.apache.druid.segment.column.BaseColumn

Packages that use BaseColumn

Package	Description
org.apache.druid.frame.read.columnar
org.apache.druid.query.aggregation
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.nested

Uses of BaseColumn in org.apache.druid.frame.read.columnar

Methods in org.apache.druid.frame.read.columnar that return BaseColumn

Modifier and Type	Method and Description
BaseColumn	ColumnPlus.getColumn()

Uses of BaseColumn in org.apache.druid.query.aggregation

Classes in org.apache.druid.query.aggregation that implement BaseColumn

Modifier and Type	Class and Description
class	SerializablePairLongStringComplexColumn

Uses of BaseColumn in org.apache.druid.segment

Methods in org.apache.druid.segment that return BaseColumn

Modifier and Type	Method and Description
BaseColumn	ColumnCache.getColumn(String columnName)

Uses of BaseColumn in org.apache.druid.segment.column

Subinterfaces of BaseColumn in org.apache.druid.segment.column

Modifier and Type	Interface and Description
interface	ComplexColumn This interface represents a complex column and can be implemented by druid extension writer of a custom column with arbitrary serialization instead of a custom column that serializes rows of objects serialized using GenericIndexed class which is default implementation of "writeToXXX" methods in ComplexColumnSerializer.
interface	DictionaryEncodedColumn<ActualType extends Comparable<? super ActualType>>
interface	NumericColumn

Classes in org.apache.druid.segment.column that implement BaseColumn

Modifier and Type	Class and Description
class	DoublesColumn
class	FloatsColumn
class	GenericIndexedBasedComplexColumn Implementation of ComplexColumn to be used when complex column serialization is done by using GenericIndexed by using default implementations of "writeToXXX" methods in ComplexColumnSerializer
class	LongsColumn
class	StringDictionaryEncodedColumn
class	StringFrontCodedDictionaryEncodedColumn DictionaryEncodedColumn for a column which uses a FrontCodedIndexed to store its value dictionary, which 'delta encodes' strings (instead of GenericIndexed like StringDictionaryEncodedColumn).
class	UnknownTypeComplexColumn

Methods in org.apache.druid.segment.column that return BaseColumn

Modifier and Type	Method and Description
BaseColumn	ColumnHolder.getColumn()

Uses of BaseColumn in org.apache.druid.segment.nested

Classes in org.apache.druid.segment.nested that implement BaseColumn

Modifier and Type	Class and Description
class	CompressedNestedDataComplexColumn<TStringDictionary extends Indexed<ByteBuffer>> Implementation of NestedDataComplexColumn which uses a CompressedVariableSizedBlobColumn for the 'raw' StructuredData values and provides selectors for nested 'literal' field columns.
class	NestedDataColumnV3<TStringDictionary extends Indexed<ByteBuffer>>
class	NestedDataColumnV4<TStringDictionary extends Indexed<ByteBuffer>>
class	NestedDataComplexColumn Describes the basic shape for any 'nested data' (StructuredData) ComplexColumn implementation along with basic facilities for caching any columns created and methods for retrieving selectors for nested literal field columns.
class	NestedFieldLiteralDictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>