Method compression_level

cpp/src/arrow/util/compression_bz2.cc:270–270

  Compression::type compression_type() const override { return Compression::BZ2; }

  int compression_level() const override { return compression_level_; }
  int minimum_compression_level() const override { return kBZ2MinCompressionLevel; }
  int maximum_compression_level() const override { return kBZ2MaxCompressionLevel; }
  int default_compression_level() const override { return kBZ2DefaultCompressionLevel; }