fluss-rs 0.1.0

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//   http://www.apache.org/licenses/LICENSE-2.0
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//! Read context for KV record batches.
//!
//! Provides schema and decoder information needed for typed record reading.

use crate::error::Result;
use crate::row::RowDecoder;
use std::sync::Arc;

/// Context for reading KV records with type information.
///
/// The ReadContext provides access to RowDecoders based on schema IDs,
/// enabling typed deserialization of KV record values.
///
/// Reference: org.apache.fluss.record.KvRecordBatch.ReadContext
pub trait ReadContext: Send + Sync {
    /// Get the row decoder for the given schema ID.
    ///
    /// The decoder is typically cached, so repeated calls with the same
    /// schema ID should return the same decoder instance.
    ///
    /// # Arguments
    /// * `schema_id` - The schema ID for which to get the decoder
    ///
    /// # Returns
    /// An Arc-wrapped RowDecoder for the specified schema, or an error if
    /// the schema is invalid or cannot be retrieved
    fn get_row_decoder(&self, schema_id: i16) -> Result<Arc<dyn RowDecoder>>;
}