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Java KeyValue.createLastOnRow方法代码示例

本文整理汇总了Java中org.apache.hadoop.hbase.KeyValue.createLastOnRow方法的典型用法代码示例。如果您正苦于以下问题:Java KeyValue.createLastOnRow方法的具体用法?Java KeyValue.createLastOnRow怎么用?Java KeyValue.createLastOnRow使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.apache.hadoop.hbase.KeyValue的用法示例。


在下文中一共展示了KeyValue.createLastOnRow方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: StoreIndexScanner

import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
public StoreIndexScanner(Store store, List<KeyValueScanner> scanners, KVComparator comparator,
    IndexKVComparator indexComparator, Range range, Scan scan, Set<ByteArray> joinSet,
    boolean isAND) throws IOException {
  // winter scanner is always 1? in my test it is 1 indeed
  this.store = store;
  this.joinSet = joinSet;
  this.isAND = isAND;
  this.memstoreScanner = scanners;
  this.comparator = comparator;
  this.indexComparator = indexComparator;
  this.range = range;
  this.isGet = scan.isGetScan();
  this.cacheBlocks = scan.getCacheBlocks();
  if (isAND) {
    this.isEmptySet = this.joinSet.isEmpty();
    this.indexSet = new HashSet<ByteArray>(10000);
  }
  this.startRow = scan.getStartRow();
  this.startKV = KeyValue.createFirstOnRow(startRow);
  this.stopRow =
      Bytes.compareTo(scan.getStopRow(), HConstants.EMPTY_BYTE_ARRAY) == 0 ? null : scan
          .getStopRow();
  this.stopKV =
      Bytes.compareTo(scan.getStopRow(), HConstants.EMPTY_BYTE_ARRAY) == 0 ? null : KeyValue
          .createLastOnRow(scan.getStopRow());
  this.stopRowCmpValue = scan.isGetScan() ? -1 : 0;

  if (range.getStartValue() != null) {
    switch (range.getStartType()) {
    case EQUAL:
      startIKV =
          IndexKeyValue.createFirstOnQualifier(range.getQualifier(), range.getStartValue());
      stopIKV = startIKV;
      stopIKVCmpValue = -1;
      break;
    case GREATER_OR_EQUAL:
      startIKV =
          IndexKeyValue.createFirstOnQualifier(range.getQualifier(), range.getStartValue());
      stopIKV = null;
      stopIKVCmpValue = 0;
      break;
    case GREATER:
      startIKV = IndexKeyValue.createLastOnQualifier(range.getQualifier(), range.getStartValue());
      stopIKV = null;
      stopIKVCmpValue = 0;
      break;
    default:
      throw new IOException("Invalid Range:" + range);
    }
  } else {
    startIKV = IndexKeyValue.createFirstOnQualifier(range.getQualifier());
    stopIKV = null;
  }

  if (range.getStopValue() != null) {
    switch (range.getStopType()) {
    case LESS:
      stopIKV = IndexKeyValue.createFirstOnQualifier(range.getQualifier(), range.getStopValue());
      stopIKVCmpValue = 0;
      break;
    case LESS_OR_EQUAL:
      stopIKV = IndexKeyValue.createFirstOnQualifier(range.getQualifier(), range.getStopValue());
      stopIKVCmpValue = -1;
      break;
    default:
      throw new IOException("Invalid Range:" + range);
    }
  }
  this.needToRefresh = false;
  getScanners();
}
 
开发者ID:fengchen8086,项目名称:ditb,代码行数:72,代码来源:StoreIndexScanner.java


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