Package com.illumon.iris.db.v2.dataindex

Class PartitionColumnGroupingProvider

java.lang.Object

com.illumon.iris.db.v2.dataindex.MemoizingGroupingProvider

com.illumon.iris.db.v2.dataindex.PartitionColumnGroupingProvider

All Implemented Interfaces:

GroupingProvider, KeyRangeGroupingProvider

public class PartitionColumnGroupingProvider
extends MemoizingGroupingProvider
implements KeyRangeGroupingProvider

A KeyRangeGroupingProvider for partitioning columns.

Constructor Summary

Constructors

Constructor	Description
PartitionColumnGroupingProvider(String columnName, Function<ColumnLocation,String> partitionValueFactory)

Method Summary

Modifier and Type	Method	Description
void	addSource(ColumnLocation columnLocation, long firstKey, long lastKey)	Add a column location for consideration when constructing groupings.
GroupingBuilder	getGroupingBuilder()	Get a GroupingBuilder suitable for creating groups with specific properties.
boolean	hasGrouping()	Check if this provider is able to create a grouping or not.
static PartitionColumnGroupingProvider	make(String name, ColumnSource<?> source)

Methods inherited from class com.illumon.iris.db.v2.dataindex.MemoizingGroupingProvider

clearMemoizedGroupings, memoizeGrouping

Methods inherited from class java.lang.Object

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

Constructor Details

PartitionColumnGroupingProvider

public PartitionColumnGroupingProvider(String columnName, Function<ColumnLocation,String> partitionValueFactory)

Method Details

make

public static PartitionColumnGroupingProvider make(@NotNull String name, @NotNull ColumnSource<?> source)

getGroupingBuilder

@NotNull public GroupingBuilder getGroupingBuilder()

Description copied from interface: GroupingProvider

Get a GroupingBuilder suitable for creating groups with specific properties.

Specified by:

getGroupingBuilder in interface GroupingProvider

Returns:

a GroupingBuilder

addSource

public void addSource(@NotNull ColumnLocation columnLocation, long firstKey, long lastKey)

Description copied from interface: KeyRangeGroupingProvider

Add a column location for consideration when constructing groupings.

Specified by:

addSource in interface KeyRangeGroupingProvider

Parameters:

columnLocation - The column location to add

firstKey - The first key in the range for this column location

lastKey - The last key in the range for this column location (inclusive)

hasGrouping

public boolean hasGrouping()

Description copied from interface: GroupingProvider

Check if this provider is able to create a grouping or not.

Specified by:

hasGrouping in interface GroupingProvider

Returns:

true if this provider can create a grouping.