Package org.apache.druid.segment.incremental

Class IncrementalIndexCursorHolder

java.lang.Object

org.apache.druid.segment.incremental.IncrementalIndexCursorHolder

All Implemented Interfaces:

Closeable, AutoCloseable, CursorHolder

public class IncrementalIndexCursorHolder
extends Object
implements CursorHolder

Constructor Summary

Constructors

Constructor	Description
IncrementalIndexCursorHolder(IncrementalIndexRowSelector rowSelector, CursorBuildSpec spec)

Method Summary

Modifier and Type	Method	Description
Cursor	asCursor()	Create a Cursor for use with non-vectorized query engines.
List<OrderBy>	getOrdering()	Returns cursor ordering, which may or may not match CursorBuildSpec.getPreferredOrdering().
ColumnSelectorFactory	makeSelectorFactory(CursorBuildSpec buildSpec, IncrementalIndexRowHolder currEntry)

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.CursorHolder

asVectorCursor, canVectorize, close, getAggregatorsForPreAggregated, getTimeOrder, isPreAggregated

Constructor Details

IncrementalIndexCursorHolder

public IncrementalIndexCursorHolder(IncrementalIndexRowSelector rowSelector,
 CursorBuildSpec spec)

Method Details

asCursor

public Cursor asCursor()

Description copied from interface: CursorHolder

Create a Cursor for use with non-vectorized query engines.

Specified by:

asCursor in interface CursorHolder

getOrdering

public List<OrderBy> getOrdering()

Description copied from interface: CursorHolder

Returns cursor ordering, which may or may not match CursorBuildSpec.getPreferredOrdering(). If returns an empty list then the cursor has no defined ordering.

Cursors associated with this holder return rows in this ordering, using the natural comparator for the column type. Includes ColumnHolder.TIME_COLUMN_NAME if appropriate.

Specified by:

getOrdering in interface CursorHolder

makeSelectorFactory

public ColumnSelectorFactory makeSelectorFactory(CursorBuildSpec buildSpec,
 IncrementalIndexRowHolder currEntry)