leekeiabstraction commented on code in PR #127:
URL: https://github.com/apache/fluss-rust/pull/127#discussion_r2665975404
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crates/fluss/src/client/table/scanner.rs:
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@@ -171,10 +182,32 @@ impl LogScanner {
log_scanner_status.clone(),
projected_fields,
)?,
+ poll_mode: AtomicU8::new(POLL_MODE_UNSET),
})
}
pub async fn poll(&self, timeout: Duration) -> Result<ScanRecords> {
+ // Check and set poll mode to prevent mixing with poll_batches
+ match self.poll_mode.compare_exchange(
Review Comment:
Checking and erroring during runtime which opens up possibility of user
error, is there a way to enforce polling of ScanRecords/RecordBatch through
compile time means alone?
An example would be a trait with poll() which returns parameterised type.
The arrow RecordBatch implementation's poll returns RecordBatch. User then can
then initialise ArrowRecordBatchLogScanner if they want to use the RecordBatch
variant.
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