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Java KeyValue.TIMESTAMP_SIZE属性代码示例

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


在下文中一共展示了KeyValue.TIMESTAMP_SIZE属性的2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: findCommonTimestampPrefix

private int findCommonTimestampPrefix(byte[] curTsBuf, byte[] prevTsBuf) {
  int commonPrefix = 0;
  while (commonPrefix < (KeyValue.TIMESTAMP_SIZE - 1)
      && curTsBuf[commonPrefix] == prevTsBuf[commonPrefix]) {
    commonPrefix++;
  }
  return commonPrefix; // has to be at most 7 bytes
}
 
开发者ID:fengchen8086,项目名称:ditb,代码行数:8,代码来源:FastDiffDeltaEncoder.java

示例2: writeKeyExcludingCommon

private void writeKeyExcludingCommon(Cell cell, int commonPrefix, DataOutputStream out)
    throws IOException {
  short rLen = cell.getRowLength();
  if (commonPrefix < rLen + KeyValue.ROW_LENGTH_SIZE) {
    // Previous and current rows are different. Need to write the differing part followed by
    // cf,q,ts and type
    CellUtil.writeRowKeyExcludingCommon(cell, rLen, commonPrefix, out);
    byte fLen = cell.getFamilyLength();
    out.writeByte(fLen);
    out.write(cell.getFamilyArray(), cell.getFamilyOffset(), fLen);
    out.write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
    out.writeLong(cell.getTimestamp());
    out.writeByte(cell.getTypeByte());
  } else {
    // The full row key part is common. CF part will be common for sure as we deal with Cells in
    // same family. Just need write the differing part in q, ts and type
    commonPrefix = commonPrefix - (rLen + KeyValue.ROW_LENGTH_SIZE)
        - (cell.getFamilyLength() + KeyValue.FAMILY_LENGTH_SIZE);
    int qLen = cell.getQualifierLength();
    int commonQualPrefix = Math.min(commonPrefix, qLen);
    int qualPartLenToWrite = qLen - commonQualPrefix;
    if (qualPartLenToWrite > 0) {
      out.write(cell.getQualifierArray(), cell.getQualifierOffset() + commonQualPrefix,
          qualPartLenToWrite);
    }
    commonPrefix -= commonQualPrefix;
    // Common part in TS also?
    if (commonPrefix > 0) {
      int commonTimestampPrefix = Math.min(commonPrefix, KeyValue.TIMESTAMP_SIZE);
      if (commonTimestampPrefix < KeyValue.TIMESTAMP_SIZE) {
        byte[] curTsBuf = Bytes.toBytes(cell.getTimestamp());
        out.write(curTsBuf, commonTimestampPrefix, KeyValue.TIMESTAMP_SIZE
            - commonTimestampPrefix);
      }
      commonPrefix -= commonTimestampPrefix;
      if (commonPrefix == 0) {
        out.writeByte(cell.getTypeByte());
      }
    } else {
      out.writeLong(cell.getTimestamp());
      out.writeByte(cell.getTypeByte());
    }
  }
}
 
开发者ID:fengchen8086,项目名称:ditb,代码行数:44,代码来源:PrefixKeyDeltaEncoder.java


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