org.apache.hadoop.hbase.client

类 ClientSimpleScanner

java.lang.Object

org.apache.hadoop.hbase.client.AbstractClientScanner

org.apache.hadoop.hbase.client.ClientScanner

org.apache.hadoop.hbase.client.ClientSimpleScanner

所有已实现的接口:

Closeable, AutoCloseable, Iterable<Result>, ResultScanner

直接已知子类:

ClientAsyncPrefetchScanner

@InterfaceAudience.Private
public class ClientSimpleScanner
extends ClientScanner

ClientSimpleScanner implements a sync scanner behaviour. The cache is a simple list. The prefetch is invoked only when the application finished processing the entire cache.

字段概要

从类继承的字段 org.apache.hadoop.hbase.client.ClientScanner

cache, caching, callable, caller, closed, conf, currentRegion, lastNext, lastResult, maxScannerResultSize, pool, primaryOperationTimeout, rpcControllerFactory, scan, scanMetricsPublished, scannerTimeout, tableName

从类继承的字段 org.apache.hadoop.hbase.client.AbstractClientScanner

scanMetrics

构造器概要

构造器

构造器和说明
ClientSimpleScanner(org.apache.hadoop.conf.Configuration configuration, Scan scan, TableName name, ClusterConnection connection, RpcRetryingCallerFactory rpcCallerFactory, RpcControllerFactory rpcControllerFactory, ExecutorService pool, int replicaCallTimeoutMicroSecondScan)

方法概要

限定符和类型	方法和说明
protected ScannerCallable	createScannerCallable() Will be called in moveToNextRegion to create ScannerCallable.
protected boolean	setNewStartKey() Will be called in moveToNextRegion when currentRegion is null.

从类继承的方法 org.apache.hadoop.hbase.client.ClientScanner

addEstimatedSize, close, getCacheCount, getCacheSize, getCaching, getConf, getConnection, getMaxResultSize, getPool, getPrimaryOperationTimeout, getRetries, getScan, getScannerTimeout, getTable, getTimestamp, initCache, initSyncCache, loadCache, moveToNextRegion, next, nextWithSyncCache, renewLease, writeScanMetrics

从类继承的方法 org.apache.hadoop.hbase.client.AbstractClientScanner

getScanMetrics, initScanMetrics

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.hadoop.hbase.client.ResultScanner

iterator, next

从接口继承的方法 java.lang.Iterable

forEach, spliterator

构造器详细资料

ClientSimpleScanner

public ClientSimpleScanner(org.apache.hadoop.conf.Configuration configuration,
                           Scan scan,
                           TableName name,
                           ClusterConnection connection,
                           RpcRetryingCallerFactory rpcCallerFactory,
                           RpcControllerFactory rpcControllerFactory,
                           ExecutorService pool,
                           int replicaCallTimeoutMicroSecondScan)
                    throws IOException

抛出:

IOException

方法详细资料

setNewStartKey

protected boolean setNewStartKey()

从类复制的说明: ClientScanner

Will be called in moveToNextRegion when currentRegion is null. Abstract because for normal scan, we will start next scan from the endKey of the currentRegion, and for reversed scan, we will start next scan from the startKey of the currentRegion.

指定者:

setNewStartKey 在类中 ClientScanner

返回:

false if we have reached the stop row. Otherwise true.

createScannerCallable

protected ScannerCallable createScannerCallable()

从类复制的说明: ClientScanner

Will be called in moveToNextRegion to create ScannerCallable. Abstract because for reversed scan we need to create a ReversedScannerCallable.

指定者:

createScannerCallable 在类中 ClientScanner