com.pingcap.tikv

接口 ReadOnlyPDClient

所有已知实现类:

PDClient

public interface ReadOnlyPDClient

Readonly PD client including only reading related interface Supposed for TiDB-like use cases

方法概要

限定符和类型	方法和说明
List<Metapb.Store>	getAllStores(BackOffer backOffer)
HostMapping	getHostMapping()
TiRegion	getRegionByID(BackOffer backOffer, long id) Get Region by Region Id
Future<TiRegion>	getRegionByIDAsync(BackOffer backOffer, long id)
TiRegion	getRegionByKey(BackOffer backOffer, com.google.protobuf.ByteString key) Get Region from PD by key specified
Future<TiRegion>	getRegionByKeyAsync(BackOffer backOffer, com.google.protobuf.ByteString key)
Metapb.Store	getStore(BackOffer backOffer, long storeId) Get Store by StoreId
Future<Metapb.Store>	getStoreAsync(BackOffer backOffer, long storeId)
TiTimestamp	getTimestamp(BackOffer backOffer) Get Timestamp from Placement Driver

方法详细资料

getTimestamp

TiTimestamp getTimestamp(BackOffer backOffer)

Get Timestamp from Placement Driver

返回:

a timestamp object

getRegionByKey

TiRegion getRegionByKey(BackOffer backOffer,
                        com.google.protobuf.ByteString key)

Get Region from PD by key specified

参数:

key - key in bytes for locating a region

返回:

the region whose startKey and endKey range covers the given key

getRegionByKeyAsync

Future<TiRegion> getRegionByKeyAsync(BackOffer backOffer,
                                     com.google.protobuf.ByteString key)

getRegionByID

TiRegion getRegionByID(BackOffer backOffer,
                       long id)

Get Region by Region Id

参数:

id - Region Id

返回:

the region corresponding to the given Id

getRegionByIDAsync

Future<TiRegion> getRegionByIDAsync(BackOffer backOffer,
                                    long id)

getHostMapping

HostMapping getHostMapping()

getStore

Metapb.Store getStore(BackOffer backOffer,
                      long storeId)

Get Store by StoreId

参数:

storeId - StoreId

返回:

the Store corresponding to the given Id

getStoreAsync

Future<Metapb.Store> getStoreAsync(BackOffer backOffer,
                                   long storeId)

getAllStores

List<Metapb.Store> getAllStores(BackOffer backOffer)