Struct EnumEncoder 

struct EnumEncoder<'a> {
    keys: &'a PrimitiveArray<Int32Type>,
}

Avro enum encoder for Arrow DictionaryArray<Int32, Utf8>.

Per Avro spec, an enum is encoded as an int equal to the zero-based position of the symbol in the schema’s symbols list. We validate at construction that the dictionary values equal the symbols, so we can directly write the key value here.

Fields

keys: &'a PrimitiveArray<Int32Type>

Implementations

impl EnumEncoder<'_>

fn encode<W: Write + ?Sized>( &mut self, out: &mut W, row: usize, ) -> Result<(), ArrowError>