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Adds is_null function to RowAccessor #9979

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Adds is_null function to RowAccessor #9979

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24bda89
Adds is_null function to RowAccessor
choubacha May 15, 2026
e2ce6cc
Corrects implementation to return false when not Null
choubacha May 16, 2026
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11 changes: 11 additions & 0 deletions parquet/src/record/api.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -140,6 +140,8 @@ impl<'a> Iterator for RowColumnIter<'a> {

/// Trait for type-safe convenient access to fields within a Row.
pub trait RowAccessor {
/// Check if the field at the index is null.
fn is_null(&self, i: usize) -> bool;
/// Try to get a boolean value at the given index.
fn get_bool(&self, i: usize) -> Result<bool>;
/// Try to get a byte value at the given index.
Expand Down Expand Up @@ -247,6 +249,13 @@ impl RowFormatter for Row {
}

impl RowAccessor for Row {
fn is_null(&self, i: usize) -> bool {
match self.fields[i].1 {
Field::Null => true,
_ => false,
}
}

row_primitive_accessor!(get_bool, Bool, bool);

row_primitive_accessor!(get_byte, Byte, i8);
Expand Down Expand Up @@ -1651,6 +1660,8 @@ mod tests {
("p".to_string(), Field::Float16(f16::from_f32(9.1))),
]);

assert!(row.is_null(0));
assert!(!row.is_null(1));
assert!(!row.get_bool(1).unwrap());
assert_eq!(3, row.get_byte(2).unwrap());
assert_eq!(4, row.get_short(3).unwrap());
Expand Down