Lucene.Net.Codecs.BlockTreeTermsReader.ReadHeader C# (CSharp) Method

        protected internal virtual int ReadHeader(IndexInput input)
        {
            int version = CodecUtil.CheckHeader(input, BlockTreeTermsWriter.TERMS_CODEC_NAME, BlockTreeTermsWriter.VERSION_START, BlockTreeTermsWriter.VERSION_CURRENT);
            if (version < BlockTreeTermsWriter.VERSION_APPEND_ONLY)
            {
                DirOffset = input.ReadLong();
            }
            return version;
        }