Trait parquet::arrow::converter::Converter

pub trait Converter<S, T> {
    fn convert(&self, source: S) -> Result<T>;
}

A converter is used to consume record reader’s content and convert it to arrow primitive array.

Required methods

fn convert(&self, source: S) -> Result<T>

This method converts record reader’s buffered content into arrow array. It will consume record reader’s data, but will not reset record reader’s state.

Implementors

impl Converter<Vec<Option<ByteArray>, Global>, GenericBinaryArray<i32>> for BinaryArrayConverter

impl Converter<Vec<Option<ByteArray>, Global>, GenericBinaryArray<i64>> for LargeBinaryArrayConverter

impl Converter<Vec<Option<ByteArray>, Global>, GenericStringArray<i32>> for Utf8ArrayConverter

impl Converter<Vec<Option<ByteArray>, Global>, GenericStringArray<i64>> for LargeUtf8ArrayConverter

impl Converter<Vec<Option<FixedLenByteArray>, Global>, DecimalArray> for DecimalArrayConverter

impl Converter<Vec<Option<FixedLenByteArray>, Global>, FixedSizeBinaryArray> for FixedSizeArrayConverter

impl Converter<Vec<Option<FixedLenByteArray>, Global>, PrimitiveArray<IntervalDayTimeType>> for IntervalDayTimeArrayConverter

impl Converter<Vec<Option<FixedLenByteArray>, Global>, PrimitiveArray<IntervalYearMonthType>> for IntervalYearMonthArrayConverter

impl Converter<Vec<Option<Int96>, Global>, PrimitiveArray<TimestampNanosecondType>> for Int96ArrayConverter

impl<K, DictValueSourceType, DictValueTargetType, ParquetType> Converter<Vec<Option<<ParquetType as DataType>::T>, Global>, DictionaryArray<K>> for DictionaryArrayConverter<DictValueSourceType, DictValueTargetType, ParquetType> where
    K: ArrowPrimitiveType,
    DictValueSourceType: ArrowPrimitiveType,
    DictValueTargetType: ArrowPrimitiveType,
    ParquetType: DataType,
    PrimitiveArray<DictValueSourceType>: From<Vec<Option<<ParquetType as DataType>::T>>>, 

impl<K: ArrowDictionaryKeyType> Converter<Vec<Option<ByteArray>, Global>, DictionaryArray<K>> for StringDictionaryArrayConverter

impl<S, A, C> Converter<S, Arc<dyn Array + 'static>> for ArrayRefConverter<S, A, C> where
    A: Array + 'static,
    C: Converter<S, A> + 'static, 

impl<S, T> Converter<S, T> for FromConverter<S, T> where
    T: From<S>,