Package io.deephaven.engine.table.impl.locations.impl

Class RandomGroupingBuilder<DATA_TYPE>

java.lang.Object

io.deephaven.engine.table.impl.locations.impl.RandomGroupingBuilder<DATA_TYPE>

public class RandomGroupingBuilder<DATA_TYPE>
extends Object

Builder for constructing groupings from one or more <value, key range> pairs, with no requirement that key ranges be sequential.

Constructor Summary

Constructors

Constructor	Description
RandomGroupingBuilder()

Method Summary

Modifier and Type	Method	Description
void	addToGrouping(DATA_TYPE value, long firstKey, long lastKey)	Add a mapping from value [firstRowKey, lastRowKey] to the groupings under construction.
Map<DATA_TYPE,RowSet>	getGrouping()	Get the groupings under construction in a form usable by AbstractColumnSource implementations.

Methods inherited from class java.lang.Object

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

Constructor Details

RandomGroupingBuilder

public RandomGroupingBuilder()

Method Details

addToGrouping

public void addToGrouping(@Nullable
 DATA_TYPE value,
 long firstKey,
 long lastKey)

Add a mapping from value [firstRowKey, lastRowKey] to the groupings under construction.

Parameters:

value - The value for the grouping

firstKey - The first key in the range

lastKey - The last key in the range

getGrouping

public Map<DATA_TYPE,RowSet> getGrouping()

Get the groupings under construction in a form usable by AbstractColumnSource implementations.

Returns:

A mapping from grouping value to its matching RowSet