Examples of io.druid.segment.data.VSizeIndexedWriter.open()

    timeWriter.open();


    ArrayList<VSizeIndexedWriter> forwardDimWriters = Lists.newArrayListWithCapacity(mergedDimensions.size());
    for (String dimension : mergedDimensions) {
      VSizeIndexedWriter writer = new VSizeIndexedWriter(ioPeon, dimension, dimensionCardinalities.get(dimension));
      writer.open();
      forwardDimWriters.add(writer);
    }


    ArrayList<MetricColumnSerializer> metWriters = Lists.newArrayListWithCapacity(mergedMetrics.size());
    for (String metric : mergedMetrics) {

      log.info("Starting dimension[%s] with cardinality[%,d]", dimension, dimVals.size());


      GenericIndexedWriter<ImmutableBitmap> writer = new GenericIndexedWriter<>(
          ioPeon, dimension, bitmapSerdeFactory.getObjectStrategy()
      );
      writer.open();


      boolean isSpatialDim = columnCapabilities.get(dimension).hasSpatialIndexes();
      ByteBufferWriter<ImmutableRTree> spatialWriter = null;
      RTree tree = null;
      IOPeon spatialIoPeon = new TmpFileIOPeon();

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