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Java Scan.isSmall方法代碼示例

本文整理匯總了Java中org.apache.hadoop.hbase.client.Scan.isSmall方法的典型用法代碼示例。如果您正苦於以下問題:Java Scan.isSmall方法的具體用法?Java Scan.isSmall怎麽用?Java Scan.isSmall使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在org.apache.hadoop.hbase.client.Scan的用法示例。


在下文中一共展示了Scan.isSmall方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: StoreScanner

import org.apache.hadoop.hbase.client.Scan; //導入方法依賴的package包/類
/**
 * An internal constructor.
 */
protected StoreScanner(Store store, Scan scan, final ScanInfo scanInfo,
    final NavigableSet<byte[]> columns, long readPt, boolean cacheBlocks) {
  this.readPt = readPt;
  this.store = store;
  this.cacheBlocks = cacheBlocks;
  get = scan.isGetScan();
  int numCol = columns == null ? 0 : columns.size();
  explicitColumnQuery = numCol > 0;
  this.scan = scan;
  this.columns = columns;
  this.now = EnvironmentEdgeManager.currentTime();
  this.oldestUnexpiredTS = now - scanInfo.getTtl();
  this.minVersions = scanInfo.getMinVersions();

  // We look up row-column Bloom filters for multi-column queries as part of
  // the seek operation. However, we also look the row-column Bloom filter
  // for multi-row (non-"get") scans because this is not done in
  // StoreFile.passesBloomFilter(Scan, SortedSet<byte[]>).
  this.useRowColBloom = numCol > 1 || (!get && numCol == 1);

  this.maxRowSize = scanInfo.getTableMaxRowSize();
  this.scanUsePread = scan.isSmall() ? true : scanInfo.isUsePread();
  this.cellsPerHeartbeatCheck = scanInfo.getCellsPerTimeoutCheck();
  // Parallel seeking is on if the config allows and more there is more than one store file.
  if (this.store != null && this.store.getStorefilesCount() > 1) {
    RegionServerServices rsService = ((HStore) store).getHRegion().getRegionServerServices();
    if (rsService != null && scanInfo.isParallelSeekEnabled()) {
      this.parallelSeekEnabled = true;
      this.executor = rsService.getExecutorService();
    }
  }
}
 
開發者ID:fengchen8086,項目名稱:ditb,代碼行數:36,代碼來源:StoreScanner.java


注:本文中的org.apache.hadoop.hbase.client.Scan.isSmall方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。