Package com.illumon.iris.db.v2.locations

Interface GroupingProvider

All Known Subinterfaces:

KeyRangeGroupingProvider

All Known Implementing Classes:

DiskBackedDeferredGroupingProvider, MemoizingGroupingProvider, PartitionColumnGroupingProvider, StaticGroupingProvider

public interface GroupingProvider

Implementations of this interface are able to compute groupings.

Method Summary

Modifier and Type	Method	Description
GroupingBuilder	getGroupingBuilder()	Get a GroupingBuilder suitable for creating groups with specific properties.
boolean	hasGrouping()	Check if this provider is able to create a grouping for all included regions or not.
boolean	hasGrouping(ReadOnlyIndex relevantIndex)	Check if this provider is able to create a grouping for all included regions or not.
static GroupingProvider	makeGroupingProvider(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition, ColumnSource<?> source, com.fishlib.io.logger.Logger log)	Make a new GroupingProvider for the specified ColumnDefinition and current global configuration.

Method Details

makeGroupingProvider

@NotNull
static GroupingProvider makeGroupingProvider(@NotNull
 com.illumon.dataobjects.ColumnDefinition<?> columnDefinition,
 @NotNull
 ColumnSource<?> source,
 @NotNull
 com.fishlib.io.logger.Logger log)

Make a new GroupingProvider for the specified ColumnDefinition and current global configuration.

Parameters:

columnDefinition - The column definition

log - a logger

Returns:

A new GroupingProvider

getGroupingBuilder

@NotNull
GroupingBuilder getGroupingBuilder()

Get a GroupingBuilder suitable for creating groups with specific properties.

Returns:

a GroupingBuilder

hasGrouping

boolean hasGrouping()

Check if this provider is able to create a grouping for all included regions or not.

Returns:

true if this provider can create a grouping.

hasGrouping

boolean hasGrouping(@Nullable
 ReadOnlyIndex relevantIndex)

Check if this provider is able to create a grouping for all included regions or not.

Returns:

true if this provider can create a grouping.