Package org.apache.druid.segment

Class WrappedTimeBoundaryInspector

java.lang.Object

org.apache.druid.segment.WrappedTimeBoundaryInspector

All Implemented Interfaces:

TimeBoundaryInspector

public class WrappedTimeBoundaryInspector
extends Object
implements TimeBoundaryInspector

Wrapper for TimeBoundaryInspector used by Segment implementations that may filter out rows from an underlying segment, but do not modify ColumnHolder.TIME_COLUMN_NAME.

Method Summary

Modifier and Type	Method	Description
static WrappedTimeBoundaryInspector	create(TimeBoundaryInspector delegate)
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

@Nullable
public static WrappedTimeBoundaryInspector create(@Nullable
 TimeBoundaryInspector delegate)

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