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BlockDecompressor

lance_encoding::compression

Trait BlockDecompressor 

Source 
pub trait BlockDecompressor:
    Debug
    + Send
    + Sync {
    // Required method
    fn decompress(
        &self,
        data: Option<LanceBuffer>,
        num_values: u64,
    ) -> Result<DataBlock>;

    // Provided methods
    fn requires_payload(&self) -> bool { ... }
    fn infer_num_values(&self, _data: &LanceBuffer) -> Result<Option<u64>> { ... }
}

Required Methods§

Source

fn decompress( &self, data: Option<LanceBuffer>, num_values: u64, ) -> Result<DataBlock>

Provided Methods§

Source

fn requires_payload(&self) -> bool

Whether this codec consumes one payload buffer.

Source

fn infer_num_values(&self, _data: &LanceBuffer) -> Result<Option<u64>>

Inspect a block for an exact payload-derived value count when supported.

This must not materialize the decoded values. None means the encoding requires an external count or cannot safely prove one from this payload.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§