Method build

arrow-avro/src/reader/mod.rs:1289–1302

Build a `Reader` (OCF) from this builder and a `BufRead`. This reads and validates the OCF header, initializes an internal row decoder from the discovered writer (and optional reader) schema, and prepares to iterate blocks, decompressing if necessary.

(self, mut reader: R)

    /// the discovered writer (and optional reader) schema, and prepares to iterate blocks,
    /// decompressing if necessary.
    pub fn build<R: BufRead>(self, mut reader: R) -> Result<Reader<R>, ArrowError> {
        let (header, _) = read_header(&mut reader)?;
        let decoder = self.make_decoder(Some(&header), self.reader_schema.as_ref())?;
        Ok(Reader {
            reader,
            header,
            decoder,
            block_decoder: BlockDecoder::default(),
            block_data: Vec::new(),
            block_count: 0,
            block_cursor: 0,
            finished: false,
        })
    }

    /// Build a streaming `Decoder` from this builder.
    ///