Java StreamReader.startRowGroup示例

示例#1

文件： StructStreamReader.java 项目： albertocsm/presto

  @Override
  public void startRowGroup(StreamSources dataStreamSources) throws IOException {
    presentStreamSource =
        dataStreamSources.getStreamSource(streamDescriptor, PRESENT, BooleanStream.class);

    readOffset = 0;
    nextBatchSize = 0;

    presentStream = null;

    rowGroupOpen = false;

    for (StreamReader structField : structFields) {
      structField.startRowGroup(dataStreamSources);
    }
  }