org.apache.druid.frame.segment

Class FrameCursorUtils

java.lang.Object

org.apache.druid.frame.segment.FrameCursorUtils

public class FrameCursorUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static Filter	buildFilter(Filter filter, org.joda.time.Interval interval) Builds a Filter from a Filter plus an Interval.
static Sequence<Frame>	cursorToFrames(Cursor cursor, FrameWriterFactory frameWriterFactory) Writes a Cursor to a sequence of Frame.

Methods inherited from class java.lang.Object

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

Method Detail

buildFilter

@Nullable
public static Filter buildFilter(@Nullable
                                           Filter filter,
                                           org.joda.time.Interval interval)

Builds a Filter from a Filter plus an Interval. Useful when we want to do a time filter on a frame, but can't push the time filter into the frame itself (perhaps because it isn't time-sorted).

cursorToFrames

public static Sequence<Frame> cursorToFrames(Cursor cursor,
                                             FrameWriterFactory frameWriterFactory)

Writes a Cursor to a sequence of Frame. This method iterates over the rows of the cursor, and writes the columns to the frames

Parameters:

cursor - Cursor to write to the frame

frameWriterFactory - Frame writer factory to write to the frame. Determines the signature of the rows that are written to the frames