Package org.apache.druid.query

Class CursorGranularizer

java.lang.Object

org.apache.druid.query.CursorGranularizer

public class CursorGranularizer
extends Object

Class that helps non-vectorized query engines handle "granularity" parameters. Given a set of intervals, this class provides mechansims to advance a cursor to the start of an interval (advanceToBucket(Interval)), advance a cursor within a bucket interval (advanceCursorWithinBucket()), and check if the current cursor position is within the bucket currentOffsetWithinBucket().

See Also:

for vectorized query engines.

Method Summary

Modifier and Type	Method	Description
boolean	advanceCursorWithinBucket()
boolean	advanceCursorWithinBucketUninterruptedly()
boolean	advanceToBucket(org.joda.time.Interval bucketInterval)
static CursorGranularizer	create(Cursor cursor, TimeBoundaryInspector timeBoundaryInspector, Order timeOrder, Granularity granularity, org.joda.time.Interval queryInterval)
boolean	currentOffsetWithinBucket()
Iterable<org.joda.time.Interval>	getBucketIterable()
org.joda.time.DateTime	getBucketStart()
org.joda.time.Interval	getCurrentInterval()

Methods inherited from class java.lang.Object

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

Method Detail

create

@Nullable
public static CursorGranularizer create(Cursor cursor,
                                        @Nullable
                                        TimeBoundaryInspector timeBoundaryInspector,
                                        Order timeOrder,
                                        Granularity granularity,
                                        org.joda.time.Interval queryInterval)

getBucketIterable

public Iterable<org.joda.time.Interval> getBucketIterable()

getBucketStart

public org.joda.time.DateTime getBucketStart()

getCurrentInterval

public org.joda.time.Interval getCurrentInterval()

advanceToBucket

public boolean advanceToBucket(org.joda.time.Interval bucketInterval)

advanceCursorWithinBucket

public boolean advanceCursorWithinBucket()

advanceCursorWithinBucketUninterruptedly

public boolean advanceCursorWithinBucketUninterruptedly()

currentOffsetWithinBucket

public boolean currentOffsetWithinBucket()