alluxio.thrift

Interface KeyValueWorkerClientService.Iface

All Superinterfaces:

AlluxioService.Iface

All Known Implementing Classes:

KeyValueWorkerClientService.Client

Enclosing class:

KeyValueWorkerClientService

public static interface KeyValueWorkerClientService.Iface
extends AlluxioService.Iface

Method Summary

Methods

Modifier and Type	Method and Description
ByteBuffer	get(long blockId, ByteBuffer key) Looks up a key in the block with the given block id.
List<ByteBuffer>	getNextKeys(long blockId, ByteBuffer key, int numKeys) Gets a batch of keys next to the given key in the partition.
int	getSize(long blockId) Gets the number of key-value pairs in the partition.

Methods inherited from interface alluxio.thrift.AlluxioService.Iface

getServiceVersion

Method Detail

get

ByteBuffer get(long blockId,
             ByteBuffer key)
               throws AlluxioTException,
                      ThriftIOException,
                      org.apache.thrift.TException

Looks up a key in the block with the given block id.

Parameters:

blockId - the id of the block being accessed

key - binary of the key

Throws:

AlluxioTException

ThriftIOException

org.apache.thrift.TException

getNextKeys

List<ByteBuffer> getNextKeys(long blockId,
                           ByteBuffer key,
                           int numKeys)
                             throws AlluxioTException,
                                    ThriftIOException,
                                    org.apache.thrift.TException

Gets a batch of keys next to the given key in the partition. If current key is null, it means get the initial batch of keys. If there are no more next keys, an empty list is returned.

Parameters:

blockId - the id of the partition

key - current key

numKeys - maximum number of keys to get

Throws:

AlluxioTException

ThriftIOException

org.apache.thrift.TException

getSize

int getSize(long blockId)
            throws AlluxioTException,
                   ThriftIOException,
                   org.apache.thrift.TException

Gets the number of key-value pairs in the partition.

Parameters:

blockId - the id of the partition

Throws:

AlluxioTException

ThriftIOException

org.apache.thrift.TException