Package org.apache.druid.segment

Class QueryableIndexTimeBoundaryInspector

java.lang.Object

org.apache.druid.segment.QueryableIndexTimeBoundaryInspector

All Implemented Interfaces:

TimeBoundaryInspector

public class QueryableIndexTimeBoundaryInspector
extends Object
implements TimeBoundaryInspector

TimeBoundaryInspector for QueryableIndex that are sorted by ColumnHolder.TIME_COLUMN_NAME.

Method Summary

Modifier and Type	Method	Description
static QueryableIndexTimeBoundaryInspector	create(QueryableIndex index)
org.joda.time.DateTime	getMaxTime()	Upper bound on ColumnHolder.TIME_COLUMN_NAME.
org.joda.time.DateTime	getMinTime()	Lower bound on ColumnHolder.TIME_COLUMN_NAME.
boolean	isMinMaxExact()	Whether the lower and upper bounds returned by TimeBoundaryInspector.getMinTime() and TimeBoundaryInspector.getMaxTime() are actually found in the dataset.

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.TimeBoundaryInspector

getMinMaxInterval

Method Details

create

public static QueryableIndexTimeBoundaryInspector create(QueryableIndex index)

getMinTime

public org.joda.time.DateTime getMinTime()

Description copied from interface: TimeBoundaryInspector

Lower bound on ColumnHolder.TIME_COLUMN_NAME. Matches the lowest timestamp in the dataset if TimeBoundaryInspector.isMinMaxExact().

Specified by:

getMinTime in interface TimeBoundaryInspector

getMaxTime

public org.joda.time.DateTime getMaxTime()

Description copied from interface: TimeBoundaryInspector

Upper bound on ColumnHolder.TIME_COLUMN_NAME. Strict if TimeBoundaryInspector.isMinMaxExact(). Matches the highest timestamp in the dataset if TimeBoundaryInspector.isMinMaxExact().

Specified by:

getMaxTime in interface TimeBoundaryInspector

isMinMaxExact

public boolean isMinMaxExact()

Description copied from interface: TimeBoundaryInspector

Whether the lower and upper bounds returned by TimeBoundaryInspector.getMinTime() and TimeBoundaryInspector.getMaxTime() are actually found in the dataset. If true, the bounds are strict and can be used substitutes for aggregations MIN(__time) and MAX(__time).

Specified by:

isMinMaxExact in interface TimeBoundaryInspector