Trait EncoderBuild

pub trait EncoderBuild: Sized {
    // Required method
    async fn build(
        params: EncoderParams<'_>,
        pk_indices: Option<Vec<usize>>,
    ) -> Result<Self>;
}

Each encoder shall be able to be built from parameters.

This is not part of RowEncoder trait, because that one is about how an encoder completes its own job as a self-contained unit, with a custom new asking for only necessary info; while this one is about how different encoders can be selected from a common SQL interface.

Required Methods

async fn build( params: EncoderParams<'_>, pk_indices: Option<Vec<usize>>, ) -> Result<Self>

Pass pk_indices: None for value/payload and Some for key. Certain encoder builds differently when used as key vs value.

Object Safety

This trait is not object safe.

Implementors

impl EncoderBuild for AvroEncoder

impl EncoderBuild for BytesEncoder

impl EncoderBuild for JsonEncoder

impl EncoderBuild for ProtoEncoder

impl EncoderBuild for TemplateEncoder

impl EncoderBuild for TextEncoder