code: void notifyIndexOffsetChanged(long segmentId, long indexOffset) {
          this.cache.updateSegmentIndexOffset(segmentId, indexOffset);
          this.recoveryTracker.updateSegmentIndexOffset(segmentId, indexOffset);
      }
docs: Notifies this ContainerKeyIndex instance that the {@link TableAttributes#INDEX_OFFSET} attribute value for the
  given Segment has been changed.
  
  @param segmentId   The Id of the Segment whose Index Offset has changed.
  @param indexOffset The new value for the Index Offset. A negative value indicates this segment has been evicted
  from memory and relevant resources can be freed.