org.tikv.common.util

Class RangeSplitter

java.lang.Object

org.tikv.common.util.RangeSplitter

public class RangeSplitter
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RangeSplitter.RegionTask

Method Summary

Modifier and Type	Method and Description
Map<Pair<TiRegion,TiStore>,gnu.trove.list.array.TLongArrayList>	groupByAndSortHandlesByRegionId(long tableId, gnu.trove.list.array.TLongArrayList handles) Group by a list of handles by the handles' region, handles will be sorted.
static RangeSplitter	newSplitter(RegionManager mgr)
List<RangeSplitter.RegionTask>	splitAndSortHandlesByRegion(List<Long> ids, gnu.trove.list.array.TLongArrayList handles)
List<RangeSplitter.RegionTask>	splitRangeByRegion(List<Coprocessor.KeyRange> keyRanges) Split key ranges into corresponding region tasks and group by their region id
List<RangeSplitter.RegionTask>	splitRangeByRegion(List<Coprocessor.KeyRange> keyRanges, TiStoreType storeType) Split key ranges into corresponding region tasks and group by their region id

Methods inherited from class java.lang.Object

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

Method Detail

newSplitter

public static RangeSplitter newSplitter(RegionManager mgr)

groupByAndSortHandlesByRegionId

public Map<Pair<TiRegion,TiStore>,gnu.trove.list.array.TLongArrayList> groupByAndSortHandlesByRegionId(long tableId,
                                                                                                       gnu.trove.list.array.TLongArrayList handles)

Group by a list of handles by the handles' region, handles will be sorted.

Parameters:

tableId - Table id used for the handle

handles - Handle list

Returns:

<Region, HandleList> map

splitAndSortHandlesByRegion

public List<RangeSplitter.RegionTask> splitAndSortHandlesByRegion(List<Long> ids,
                                                                  gnu.trove.list.array.TLongArrayList handles)

splitRangeByRegion

public List<RangeSplitter.RegionTask> splitRangeByRegion(List<Coprocessor.KeyRange> keyRanges,
                                                         TiStoreType storeType)

Split key ranges into corresponding region tasks and group by their region id

Parameters:

keyRanges - List of key ranges

storeType - Store type, null or TiKV for TiKV(leader), otherwise TiFlash(learner)

Returns:

List of RegionTask, each task corresponds to a different region.

splitRangeByRegion

public List<RangeSplitter.RegionTask> splitRangeByRegion(List<Coprocessor.KeyRange> keyRanges)

Split key ranges into corresponding region tasks and group by their region id

Parameters:

keyRanges - List of key ranges

Returns:

List of RegionTask, each task corresponds to a different region.