org.apache.druid.frame.segment.row

Class FrameCursorFactory

java.lang.Object

org.apache.druid.frame.segment.row.FrameCursorFactory

All Implemented Interfaces:

CursorFactory

public class FrameCursorFactory
extends Object
implements CursorFactory

A CursorFactory implementation based on a single row-based Frame. This class is only used for row-based frames.

See Also:

the columnar version

Constructor Summary

Constructors

Constructor and Description
FrameCursorFactory(Frame frame, FrameReader frameReader, List<FieldReader> fieldReaders)

Method Summary

Modifier and Type	Method and Description
Sequence<Cursor>	makeCursors(Filter filter, org.joda.time.Interval interval, VirtualColumns virtualColumns, Granularity gran, boolean descending, QueryMetrics<?> queryMetrics) Creates a sequence of Cursors, one for each time-granular bucket (based on the provided Granularity).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.druid.segment.CursorFactory

canVectorize, makeVectorCursor

Constructor Detail

FrameCursorFactory

public FrameCursorFactory(Frame frame,
                          FrameReader frameReader,
                          List<FieldReader> fieldReaders)

Method Detail

makeCursors

public Sequence<Cursor> makeCursors(@Nullable
                                    Filter filter,
                                    org.joda.time.Interval interval,
                                    VirtualColumns virtualColumns,
                                    Granularity gran,
                                    boolean descending,
                                    @Nullable
                                    QueryMetrics<?> queryMetrics)

Description copied from interface: CursorFactory

Creates a sequence of Cursors, one for each time-granular bucket (based on the provided Granularity).

Specified by:

makeCursors in interface CursorFactory